Method and device for confirming utilization rate of radioactive source, electronic equipment and storage medium

Abstract

The invention discloses a radioactive source utilization rate confirmation method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring a first structure parameter of a radioactive source in target detection equipment and a second structure parameter of a detector, wherein one of the first structure parameter and the second structure parameter comprises different parameter values of experimental variables; based on the first structure parameter and the second structure parameter, respectively calculating the ray quantity received by the detector under different parameter values; and determining a target parameter value of the experimental variable enabling the ray dose to be maximum based on the ray dose corresponding to each of the different parameter values. Quantitative analysis is carried out on the relation between the experimental variable and the ray quantity received by the detector, the experimental variable can be set as the size of the radioactive source or the detector, the structural design of the radioactive source or the detector in the detection equipment can be guided, the ray utilization rate in the equipment can be improved, the service life of the radioactive source is prolonged, and the replacement frequency of the radioactive source is reduced; the use cost of equipment is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of industrial instruments, and in particular to a method, device, electronic equipment and storage medium for confirming the utilization rate of a radioactive source. Background Art

[0002] A radioactive source is an object made of radioactive material that can produce radiation. Many detection devices in industrial production use the rays emitted by radioactive sources for industrial measurement. Analyzing the ray utilization rate of the radioactive source used in the detection equipment is of great significance to improving the ray utilization rate of the radioactive source in the detection equipment and reducing costs.

[0003] In the related art, the selection of materials for the radiation of the radiation source and the packaging process of the radiation source are usually analyzed, but the analysis of these aspects has limited effect on improving the utilization rate of the radiation and reducing the cost. The utilization rate of the radiation source in the detection equipment in the related art is not high, and the cost of using the radiation source is relatively high.

[0004] The above statements are only used to provide background information related to the present application and do not necessarily constitute prior art. Summary of the invention

[0005] In view of the technical problem that the radiation utilization rate of the radioactive source in the detection equipment in the above-mentioned related technologies is not high, which makes the use cost of the radioactive source high. The present application provides a method, device, electronic device and storage medium for confirming the utilization rate of the radioactive source, which can determine the target parameter value that maximizes the amount of radiation received by the detector from a variety of different parameter values ​​of the experimental variables of the radioactive source or the detector, and realize quantitative analysis of the radiation utilization of the radioactive source in the detection equipment. The determined target parameter value has guiding significance for the design of related structures in the detection equipment, which is conducive to improving the radiation utilization rate of the radioactive source in the detection equipment and reducing the use cost of the radioactive source.

[0006] According to a first aspect of an embodiment of the present application, a method for confirming a utilization rate of a radioactive source is provided, the method comprising:

[0007] Acquiring a first structural parameter of a radiation source and a second structural parameter of a detector in a target detection device, wherein one of the first structural parameter and the second structural parameter includes a different parameter value of an experimental variable;

[0008] Based on the first structural parameter and the second structural parameter, respectively calculating the radiation amount received by the detector under the different parameter values;

[0009] Based on the radiation doses corresponding to the different parameter values, a target parameter value of the experimental variable that maximizes the radiation dose is determined.

[0010] In this embodiment, a quantitative analysis is performed on the relationship between the experimental variable and the amount of radiation received by the detector, and the target parameter value of the experimental variable that maximizes the amount of radiation received can be determined. The target parameter value has guiding significance for the structural design of the radiation source or detector in the detection device, and is conducive to improving the radiation utilization rate of the radiation source in the detection device, extending the service life of the radiation source, reducing the replacement frequency of the radiation source in the detection device, and thus reducing the use cost of the detection device.

[0011] In some embodiments of the present application, the first structural parameter includes the spatial position of the radiation source in the target detection device and the size of the radiation source; the second structural parameter includes the spatial position of the detector in the target detection device and the size of the detector;

[0012] The experimental variable includes one of a size of the radiation source and a size of the detector.

[0013] In the case where the size of the detector is used as an experimental variable, the spatial position and size of the radiation source and the spatial position and size of the detector are set as fixed values, and the size of the detector is set to a variety of different size values. Based on these data, the amount of radiation emitted by the same radiation source received by the detector under different size values ​​is calculated, so that the size value with the largest amount of radiation received by the detector among these different size values ​​of the detector can be determined. In the case where the size of the radiation source is used as an experimental variable, the spatial position of the radiation source and the spatial position and size of the detector are set as fixed values, and the size of the radiation source is set to a variety of different size values. Based on these data, the amount of radiation emitted by different radiation sources received by the same detector under different size values ​​of the radiation source is calculated, so that the size value with the largest amount of radiation received by the detector among these different size values ​​of the radiation source can be determined. It is helpful to analyze the radiation source size and / or detector size that improves the radiation utilization rate of the radiation source in the target detection device, provide data guidance for the design of related structures in the target detection device, and help reduce the use cost of the radiation source in the target detection device.

[0014] In some embodiments of the present application, the experimental variable includes the size of the radiation source, and the calculation of the radiation amount received by the detector under different parameter values ​​based on the first structural parameter and the second structural parameter includes:

[0015] Based on different sizes of the radiation source in the first structural parameter, the effective activity areas of the radiation sources of different sizes are discretized into a plurality of radiation points;

[0016] Based on the size of the detector in the second structural parameter, dividing the receiving surface of the detector into a plurality of receiving areas;

[0017] Based on the spatial position of the radiation source, the spatial position of the detector, the multiple receiving areas and the multiple radiation points corresponding to the radiation sources of different sizes, the radiation doses received by the detector when the radiation sources of different sizes are used are calculated respectively.

[0018] In this embodiment, the radiation source is discretized into multiple radiation points, and the detector is divided into multiple receiving areas. On this basis, the amount of radiation received by the detector in the case of radiation sources of different sizes is calculated. The quantitative calculation of the amount of radiation radiated by the radiation source received by the detector is realized, and based on multiple radiation points and multiple receiving areas, the calculation process can be more refined, which helps to improve the accuracy of the calculation of the radiation amount. The amount of radiation received by the detector in the case of using radiation sources of different sizes is calculated separately, which provides data support for analyzing the impact of the size of the radiation source on the effective use of the radiation amount, which can help optimize the size design of the radiation source used in the target detection equipment, improve the utilization rate of the radiation in the target detection equipment, and reduce the use cost of the equipment.

[0019] In some embodiments of the present application, the experimental variable includes the size of the detector, and the calculating, based on the first structural parameter and the second structural parameter, respectively, the amount of radiation received by the detector under the different parameter values ​​includes:

[0020] Based on the size of the radiation source in the first structural parameter, discretizing the effective activity area of ​​the radiation source into a plurality of radiation points;

[0021] Based on different sizes of the detectors in the second structural parameter, the receiving surfaces of the detectors of different sizes are divided into a plurality of receiving areas respectively;

[0022] Based on the spatial position of the radiation source, the spatial position of the detector, the multiple radiation points and the multiple receiving areas corresponding to the detectors of different sizes, the amount of radiation received by the detector when the detectors of different sizes are used is calculated respectively.

[0023] The radiation source is discretized into multiple radiation points, and the detector is divided into multiple receiving areas. On this basis, the amount of radiation received by the detector is calculated when using detectors of different sizes. The quantitative calculation of the amount of radiation radiated by the radiation source received by the detector is realized, and the calculation based on multiple radiation points and multiple receiving areas can make the calculation process more refined, which helps to improve the accuracy of the calculation of the radiation amount. The amount of radiation received by the detector when using detectors of different sizes is calculated separately, which provides data support for analyzing the impact of the size of the detector on the effective use of the radiation amount, which can help optimize the size design of the detector used in the target detection equipment, improve the utilization rate of the radiation in the target detection equipment, and reduce the cost of equipment use.

[0024] In some embodiments of the present application, calculating the amount of radiation received by the detector includes:

[0025] Based on the spatial position of the first radiation source, the spatial position of the first detector, the multiple radiation points corresponding to the first radiation source, and the multiple receiving areas corresponding to the first detector, respectively determine the effective receiving area corresponding to each radiation point, where the effective receiving area corresponding to the radiation point is a receiving area that can receive the rays emitted by the radiation point;

[0026] Calculating the radiation amount received by the first detector based on a plurality of radiation points corresponding to the first radiation source and an effective receiving area corresponding to each radiation point;

[0027] The first radiation source is a radiation source of any size within the first structural parameters, and the first detector is a detector of any size within the second structural parameters.

[0028] In this embodiment, the radiation amount received by the first detector is calculated according to the effective receiving area of ​​each radiation point, and the influence of the invalid receiving area on the calculation process is eliminated, the calculation amount is reduced, and the calculation efficiency and accuracy of the radiation amount are improved.

[0029] In some embodiments of the present application, determining the effective receiving area corresponding to each radiation point based on the spatial position of the first radiation source, the spatial position of the first detector, the multiple radiation points corresponding to the first radiation source, and the multiple receiving areas corresponding to the first detector includes:

[0030] Determining a first distance between a radiation source window and the first detector based on a spatial position of a first radiation source and a spatial position of a first detector;

[0031] Determine the intersection points between the lines connecting the first radiation point and each receiving area of ​​the first detector and the side wall of the radiation source window respectively; the first radiation point is any radiation point among the multiple radiation points of the first radiation source;

[0032] respectively determining a second distance between each intersection point and the first detector;

[0033] A receiving area corresponding to a second distance smaller than the first distance is determined as an effective receiving area corresponding to the first radiation point.

[0034] In this embodiment, based on the spatial geometric relationship between the radiation point and the receiving area, it is possible to accurately determine whether the receiving area is unable to receive the radiation from the radiation point due to shading of the radiation, thereby improving the accuracy of determining the effective receiving area corresponding to the radiation point.

[0035] In some embodiments of the present application, the step of calculating the radiation amount received by the first detector based on the multiple radiation points corresponding to the first radiation source and the effective receiving area corresponding to each radiation point includes:

[0036] Based on the multiple radiation points corresponding to the first radiation source and the effective receiving area corresponding to each radiation point, respectively calculating the amount of radiation emitted by the corresponding radiation point received by each effective receiving area of ​​each radiation point;

[0037] The radiation amounts received by each effective receiving area of ​​each radiation point are accumulated to obtain the radiation amount emitted by the first radiation source and received by the first detector.

[0038] In this embodiment, the calculation process of the radiation amount emitted by the first radiation source received by the first detector is refined through the radiation point and the effective receiving area, and is refined into the calculation process of the radiation amount received by multiple effective receiving areas. The complex problem is simplified by refinement, and the quantitative calculation of the radiation utilization is realized. In addition, the influence of the invalid receiving area is eliminated in the calculation process, and the efficiency and accuracy of the radiation amount calculation are improved.

[0039] In some embodiments of the present application, the calculating, based on the multiple radiation points corresponding to the first radiation source and the effective receiving area corresponding to each radiation point, the amount of radiation received by each effective receiving area of ​​each radiation point emitted by the corresponding radiation point includes:

[0040] Calculating the amount of radiation emitted by the first radiation point and received by the first effective receiving area based on the coordinates of the first radiation point, the center coordinates of the first effective receiving area, and the area of ​​the first effective receiving area;

[0041] The first radiation point is any radiation point of the first radiation source, and the first effective receiving area is any effective receiving area among the effective receiving areas corresponding to the first radiation point.

[0042] In this embodiment, based on the coordinates of the first radiation point, the center coordinates of the first effective receiving area and the area of ​​the first effective receiving area, the amount of rays emitted by the first radiation point and received by the first effective receiving area can be calculated through simple calculations. The calculation process is simple, the amount of calculation is small, and the calculation efficiency and accuracy are high.

[0043] In some embodiments of the present application, the calculating, based on the coordinates of the first radiation point, the center coordinates of the first effective receiving area, and the area of ​​the first effective receiving area, the amount of radiation emitted by the first radiation point received by the first effective receiving area includes:

[0044] Based on the coordinates of the first radiation point and the center coordinates of the first effective receiving area, determining the distance between the first radiation point and the first effective receiving area in a first direction and a distance in a second direction; the first direction is perpendicular to the second direction;

[0045] Based on the distance in the first direction and the distance in the second direction, calculating an angle between a line connecting the coordinates of the first radiation point and the center coordinates of the first effective receiving area and a plane where the first effective receiving area is located;

[0046] The amount of radiation emitted by the first radiation point and received by the first effective receiving area is calculated based on the distance in the first direction, the distance in the second direction, the angle, the area of ​​the first effective receiving area and the preset total radiation amount emitted by the first radiation point.

[0047] In this embodiment, based on the coordinates of the first radiation point and the center coordinates of the first effective receiving area, the distance between the first radiation point and the center point of the first effective receiving area in the first direction and the second direction is determined. Based on the calculated distance data and the area of ​​the first effective receiving area, the amount of radiation emitted by the first radiation point received by the first effective receiving area is calculated through mathematical operations, thereby realizing quantitative calculation of the radiation amount, and the calculation process is simple and efficient.

[0048] In some embodiments of the present application, the method further includes:

[0049] The amount of radiation emitted by each radiation point received by the effective receiving area is accumulated respectively to obtain the total amount of radiation received by each effective receiving area;

[0050] Based on the total amount of radiation received by each effective receiving area, a spatial distribution diagram of radiation in each receiving area of ​​the first detector is displayed.

[0051] In this embodiment, based on the calculated radiation amount, the radiation space distribution diagram is displayed, which can intuitively show the user the radiation distribution of the radiation source in each receiving area of ​​the detector, making it convenient for the user to understand the spatial distribution of the radioactive intensity of the radiation source. It has guiding significance for the setting of the relative spatial position of the radiation source and the detector in the target detection equipment, and can guide the user to adjust the placement of the radiation source so that the radiation of the radiation source can fall more concentratedly on the receiving surface of the detector.

[0052] In some embodiments of the present application, the experimental variable includes the size of the radiation source, and determining the target parameter value of the experimental variable that maximizes the radiation dose based on the radiation doses corresponding to the different parameter values ​​includes:

[0053] Based on the calculated radiation doses corresponding to radiation sources of different sizes, generating first correlation relationship data between the size of the radiation source and the radiation dose received by the detector;

[0054] Based on the first association relationship data, the size of the radiation source that maximizes the radiation dose is determined.

[0055] The amount of radiation received by the same detector from sources of different sizes is calculated, which provides data support for analyzing the impact of the size of the radiation source on the utilization of radiation. Based on the calculated data, a mapping relationship between the size of the radiation source and the amount of radiation received by the detector is established, and then the size of the radiation source that makes the detector receive the largest amount of radiation among these different radiation source sizes is determined. The size of the radiation source determined in this way has guiding significance for the size design of the radiation source in the target detection equipment, and helps to improve the radiation utilization rate of the radiation source in the target detection equipment by improving the size of the radiation source, extend the service life of the radiation source, reduce the replacement frequency of the radiation source, and reduce the use cost of the target detection equipment.

[0056] In some embodiments of the present application, the experimental variable includes the size of the detector, and determining the target parameter value of the experimental variable that maximizes the radiation amount based on the radiation amounts corresponding to the different parameter values ​​includes:

[0057] Based on the calculated radiation doses received by detectors of different sizes, generating second correlation relationship data between the size of the detector and the radiation dose received;

[0058] Based on the second association relationship data, a size of the detector that maximizes the amount of radiation received is determined.

[0059] The amount of radiation received by detectors of different sizes from the same radiation source is calculated, which provides data support for analyzing the impact of detector size on radiation utilization. Based on the calculated data, a mapping relationship between the detector size and the amount of radiation received by the detector is established, and then the size of the detector that maximizes the amount of radiation received by the detector among these different detector sizes is determined. The size of the detector determined in this way has guiding significance for the size design of the detector in the target detection equipment, and helps to improve the radiation utilization rate of the radiation source in the target detection equipment by improving the size of the detector, extend the service life of the radiation source, reduce the replacement frequency of the radiation source, and reduce the use cost of the target detection equipment.

[0060] In some embodiments of the present application, the association relationship data includes a relationship curve between parameter values ​​of experimental variables and the amount of radiation received by the detector, and the method further includes: displaying the relationship curve.

[0061] In this embodiment, based on the calculated radiation dose, a relationship curve between different parameter values ​​of the experimental variable and the radiation dose is plotted and displayed, so that the user can intuitively see the parameter value that maximizes the radiation dose from the displayed relationship curve.

[0062] According to a second aspect of an embodiment of the present application, there is provided a device for confirming the utilization rate of a radioactive source, the device comprising:

[0063] An acquisition module, used for acquiring a first structural parameter of a radiation source and a second structural parameter of a detector in a target detection device, wherein one of the first structural parameter and the second structural parameter comprises different parameter values ​​of experimental variables;

[0064] A calculation module, configured to calculate the radiation amount received by the detector under the different parameter values ​​based on the first structural parameter and the second structural parameter;

[0065] A determination module is used to determine the target parameter value of the experimental variable that maximizes the radiation amount based on the radiation amounts corresponding to the different parameter values.

[0066] According to a third aspect of an embodiment of the present application, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method described in the first aspect above.

[0067] According to a fourth aspect of an embodiment of the present application, a computer-readable storage medium is provided, on which a computer program is stored. The program is executed by a processor to implement the method described in the first aspect above.

[0068] In a fifth aspect of an embodiment of the present application, there is provided an area density meter, comprising a radiation source and a detector, wherein the structural parameters of at least one of the radiation source and the detector are determined by the method described in the first aspect above.

[0069] A sixth aspect of an embodiment of the present application provides a coating system, comprising the surface density meter described in the fifth aspect.

[0070] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the embodiments below. The accompanying drawings are only used for the purpose of illustrating the embodiments of the present application and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0072] Figure 1 A schematic diagram of the structure between a radiation source and a detector in a target detection device provided according to one or more embodiments of the present application;

[0073] Figure 2 A flowchart of a method for confirming the utilization rate of a radioactive source provided according to one or more embodiments of the present application;

[0074] Figure 3 A bottom schematic diagram of a cylindrical radiation source provided according to one or more embodiments of the present application after being discretized into a plurality of radiation points;

[0075] Figure 4 A three-dimensional stereogram showing a cylindrical radiation source provided according to one or more embodiments of the present application being discretized into a plurality of radiation points;

[0076] Figure 5 A schematic diagram of dividing a square detector into multiple receiving areas according to one or more embodiments of the present application;

[0077] Figure 6 A schematic diagram of the positional relationship between the radiation point and the receiving area provided according to one or more embodiments of the present application;

[0078] Figure 7 A schematic diagram of the spatial geometric relationship between a first radiation point and a first effective receiving area provided according to one or more embodiments of the present application;

[0079] Figure 8 A spatial distribution diagram of the activity of a radiation source in each receiving area of ​​a detector provided according to one or more embodiments of the present application;

[0080] Fig. 9 A schematic diagram of a relationship curve between different radiation source sizes and radiation doses provided according to one or more embodiments of the present application;

[0081] Fig.10 A schematic diagram of a relationship curve between different radiation source sizes and effective radiation doses provided according to one or more embodiments of the present application;

[0082] Fig.11 A schematic diagram of the structure of a device for confirming the utilization rate of a radioactive source provided according to one or more embodiments of the present application;

[0083] Fig.12 is a structural block diagram of an electronic device according to one or more embodiments of the present application;

[0084] Fig.13 is a schematic diagram of a computer-readable storage medium according to one or more embodiments of the present application;

[0085] Fig.14 is a schematic diagram of an area density meter according to one or more embodiments of the present application;

[0086] Fig.15 Schematic diagram of a coating system according to one or more embodiments of the present application. DETAILED DESCRIPTION

[0087] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0088] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0089] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0090] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0091] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0092] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0093] At present, many testing equipment are needed in industrial production to measure some dimensional parameters of products. Many of these testing equipment are equipped with radiation sources, and use the radiation emitted by the radiation source for measurement. For example, the surface density meter is a testing equipment that uses radiation sources for measurement. The surface density meter uses the radiation emitted by the radiation source to measure the surface density of thin film products. For example, in the production process of battery pole pieces, the surface density of the pole piece coating can be measured using a surface density meter.

[0094] As the use time increases, the radioactivity intensity of the radioactive source in the detection equipment will continue to decay. When it decays to a certain extent, the radioactive source in the detection equipment needs to be replaced. Therefore, the use cost of the radioactive source accounts for a high proportion of the total cost of the detection equipment. If the radiation utilization rate of the radioactive source is relatively low, then many of the rays emitted by the radioactive source will be wasted, which is equivalent to shortening the service life of the radioactive source in the detection equipment, thereby increasing the replacement frequency of the radioactive source in the detection equipment and increasing the use cost of the detection equipment.

[0095] The analysis of radioactive sources in related technologies mainly focuses on the research on the selection of materials for the radiation of radioactive sources and the research on the packaging process of radioactive sources. Regarding the utilization rate of radiation from radioactive sources, related technologies have not proposed effective solutions, and have not made any technical attempts to reduce costs from the perspective of the utilization of radiation from radioactive sources.

[0096] Based on this, the embodiment of the present application provides a method for confirming the utilization rate of a radiation source. For a radiation source in a target detection device and a detector for receiving radiation emitted by the radiation source, the method sets an experimental variable in the structural parameters of the radiation source and the detector, sets the parameter value of the experimental variable to change, while other parameter values ​​in the structural parameters of the radiation source and the detector remain unchanged, and calculates the amount of radiation emitted by the radiation source received by the detector under different parameter values ​​of the experimental variable, thereby achieving a quantitative analysis of the relationship between the experimental variable and the amount of radiation received by the detector, and being able to determine the target parameter value of the experimental variable that maximizes the amount of radiation received. The target parameter value has guiding significance for the design of relevant structures in the detection device, is conducive to improving the radiation utilization rate of the radiation source in the detection device, extending the service life of the radiation source, reducing the replacement frequency of the radiation source in the detection device, and thus reducing the use cost of the detection device.

[0097] The target detection device in the embodiment of the present application can be any detection device using a radioactive source, such as a surface density meter, a thickness meter, a weight meter, etc. The radioactive source can be any radioactive nuclide that can emit ionizing radiation, and the radiation type of the radioactive source can include but is not limited to gamma rays, alpha rays, beta rays, and neutron radiation, etc. The shape of the radioactive source can include but is not limited to a cylinder, a cone, a cube, a cuboid, etc.

[0098] The radiation source radiates in all directions, but when the detection equipment is used, a protective structure needs to be installed, so only a part of the radiation can be emitted from the radiation source window, and only a part of the emitted radiation can reach the detector. The area where the detector can detect the radiation is the effective radiation area. Figure 1 As shown, the radiation source 1 is placed in the protective structure 2. Due to the shielding effect of the side wall of the protective structure 2, part of the radiation emitted by the radiation source 1 cannot be radiated into the receiving area of ​​the detector 3. The area where this part of the radiation is located is called the invalid area 4. The area where the radiation that can be received by the receiving area of ​​the detector 3 is located is called the effective area 5.

[0099] exist Figure 1 Based on the structure between the radiation source and the detector in the detection device shown in FIG. 1 , some embodiments of the present application propose a method for confirming the utilization rate of the radiation source, see Figure 2 , the method specifically includes the following steps.

[0100] Step 101: obtaining a first structural parameter of a radiation source and a second structural parameter of a detector in a target detection device, wherein one of the first structural parameter and the second structural parameter includes different parameter values ​​of experimental variables.

[0101] Step 102: Based on the first structural parameter and the second structural parameter, respectively calculate the amount of radiation received by the detector under different parameter values.

[0102] Step 103: Based on the radiation doses corresponding to different parameter values, determine the target parameter value of the experimental variable that maximizes the radiation dose.

[0103] The execution subject of the embodiment of the present application may be an electronic device that can simulate the relative position relationship between the radiation source and the detector in the target detection device, and the electronic device may include but is not limited to a terminal or a server.

[0104] The first structural parameter is a parameter related to the structure of the radiation source in the target detection device, and the second structural parameter is a parameter related to the structure of the detector in the target detection device. The experimental variable can be a parameter in the first structural parameter or the second structural parameter, and the parameter is set with different parameter values ​​as the experimental variable, and the other parameters in the first structural parameter and the second structural parameter except the experimental variable all have a parameter value.

[0105] That is to say, in the analysis process, keep other parameters except the experimental variable unchanged, change the parameter value of the experimental variable, so as to study the influence of the change of the parameter value of the experimental variable on the utilization of the radiation. Determine the target parameter value that maximizes the radiation received by the detector among these different parameter values ​​of the experimental variable.

[0106] When the values ​​of other parameters of the radiation source and the detector are determined and the parameter value corresponding to the experimental variable is the target parameter value, the utilization rate of the radiation radiated by the radiation source and received by the detector is very high.

[0107] Through the above method, the relationship between the experimental variable and the amount of radiation received by the detector is quantitatively analyzed, and the target parameter value of the experimental variable that maximizes the amount of radiation received can be determined. The target parameter value has guiding significance for the structural design of the radiation source or detector in the detection equipment, which is conducive to improving the radiation utilization rate of the radiation source in the detection equipment, extending the service life of the radiation source, reducing the replacement frequency of the radiation source in the detection equipment, and thus reducing the use cost of the detection equipment.

[0108] In some embodiments of the present application, the first structural parameter includes the spatial position of the radiation source in the target detection device and the size of the radiation source. The second structural parameter includes the spatial position of the detector in the target detection device and the size of the detector. The experimental variable includes one of the size of the radiation source and the size of the detector.

[0109] The spatial position of the radiation source includes but is not limited to the center point coordinates, edge coordinates or simulated three-dimensional point cloud data of the radiation source. The size of the radiation source includes but is not limited to the volume, bottom area, bottom perimeter, etc. of the radiation source. The size of the radiation source is related to the shape of the radiation source. For example, if the shape of the radiation source is a cylinder, the size of the radiation source may include but is not limited to the volume of the radiation source, the area, perimeter, radius or diameter of the bottom circle, etc.

[0110] The spatial position of the detector includes but is not limited to the center point coordinates, edge coordinates or simulated three-dimensional point cloud data of the detector. The size of the detector includes but is not limited to the area, width, length, etc. of the detector. The size of the detector is also related to the shape of the detector. For example, if the shape of the detector is rectangular, the size of the detector may include but is not limited to the area, length and width of the detector. If the shape of the detector is circular, the size of the detector may include but is not limited to the area, radius or diameter of the detector.

[0111] In some embodiments of the present application, the experimental variable is set to be the size of the detector. In other embodiments, the experimental variable is set to be the size of the radiation source.

[0112] In the case where the size of the detector is used as an experimental variable, the spatial position and size of the radiation source and the spatial position and size of the detector are set as fixed values, and the size of the detector is set to a variety of different size values. Based on these data, the amount of radiation emitted by the same radiation source received by the detector under different size values ​​is calculated, so that the size value with the largest amount of radiation received by the detector among these different size values ​​of the detector can be determined. In the case where the size of the radiation source is used as an experimental variable, the spatial position of the radiation source and the spatial position and size of the detector are set as fixed values, and the size of the radiation source is set to a variety of different size values. Based on these data, the amount of radiation emitted by different radiation sources received by the same detector under different size values ​​of the radiation source is calculated, so that the size value with the largest amount of radiation received by the detector among these different size values ​​of the radiation source can be determined. It is helpful to analyze the radiation source size and / or detector size that improves the radiation utilization rate of the radiation source in the target detection device, provide data guidance for the design of related structures in the target detection device, and help reduce the use cost of the radiation source in the target detection device.

[0113] In some embodiments of the present application, the experimental variables include the size of the radiation source, and based on the first structural parameter and the second structural parameter, respectively calculating the amount of radiation received by the detector under different parameter values ​​includes:

[0114] Based on the different sizes of the radiation source in the first structural parameter, the effective activity areas of the radiation sources of different sizes are discretized into multiple radiation points; based on the size of the detector in the second structural parameter, the receiving surface of the detector is divided into multiple receiving areas; based on the spatial position of the radiation source, the spatial position of the detector, the multiple receiving areas and the multiple radiation points corresponding to the radiation sources of different sizes, the amount of radiation received by the detector when using radiation sources of different sizes is calculated.

[0115] The effective activity region of the radiation source refers to a part of the radiation source, and the radiation radiated by the region can be irradiated onto the receiving surface of the detector. In some embodiments of the present application, the effective activity region of the radiation source is determined by a simulation program, and the spatial dimensions of the effective activity region are placed in a Cartesian coordinate system to obtain a plurality of spatial coordinate points formed by discretizing the effective activity region. These spatial coordinate points are the plurality of radiation points of the radiation source, and are represented by three-dimensional coordinates N i (x i ,y i ,z i ) represents the i-th radiating point.

[0116] Take the shape of a cylindrical radiation source as an example for detailed explanation, then x i =R*rand ri cos(2*π*rand θi), y i =R*rand ri sin(2*π*rand θi ), z i =h*rand h , the activity of radiation point i

[0117] In the above formula, R is the bottom radius of the radiation source, and H is the height of the radiation source. ri 、rand θi 、rand h are all random numbers, and their value range is (0~1). The activity of radiation point i is the total amount of radiation that can be emitted by radiation point i. o is the total amount of radiation that can be emitted by the effective activity area of ​​the radiation source, and N is the number of radiation points discretely formed by the effective activity area of ​​the radiation source.

[0118] like Figure 3 FIG. 4 shows a schematic diagram of the bottom surface of a cylindrical radiation source after being discretized into multiple radiation points, as shown in FIG. Figure 4 A three-dimensional image showing a cylindrical radiation source being discretized into a plurality of radiation points.

[0119] In some embodiments of the present application, the receiving surface of the detector is divided into a plurality of receiving areas based on the size of the detector. The size of the detector is related to the shape of the detector. For example, if the shape of the detector is a square, the size of the detector may be the side length of the detector.

[0120] The detector can be pre-configured to be divided into a preset number of receiving areas. Based on the size of the detector and the preset number, the receiving surface of the detector is divided to obtain a preset number of receiving areas. Assume that the detector is divided into M receiving areas. The center point of the receiving area is represented by M jk (x jk ,y jk ), the area of ​​the receiving area Where L is the length of the detector and B is the width of the detector. Figure 5 A schematic diagram showing how to divide a square detector into multiple receiving areas.

[0121] The above-mentioned operation of discretizing the radiation source into a plurality of radiation points and the operation of dividing the detector into a plurality of receiving areas may be performed in parallel or successively in any order.

[0122] When the experimental variable is the size of the radiation source, after obtaining multiple radiation points of the radiation source and multiple receiving areas of the detector, based on the spatial position of the radiation source, the spatial position of the detector, the multiple receiving areas and the multiple radiation points corresponding to the radiation sources of different sizes, the amount of radiation received by the detector when using radiation sources of different sizes is calculated respectively.

[0123] The radiation source is discretized into multiple radiation points, and the detector is divided into multiple receiving areas. On this basis, the amount of radiation received by the detector is calculated for radiation sources of different sizes. The quantitative calculation of the amount of radiation radiated by the radiation source received by the detector is realized, and based on multiple radiation points and multiple receiving areas, the calculation process can be more refined, which helps to improve the accuracy of the calculation of the radiation amount. The amount of radiation received by the detector when using radiation sources of different sizes is calculated separately, which provides data support for analyzing the impact of the size of the radiation source on the effective use of the radiation amount, which can help optimize the size design of the radiation source used in the target detection equipment, improve the utilization rate of the radiation in the target detection equipment, and reduce the cost of equipment use.

[0124] In some other embodiments of the present application, the experimental variables include the size of the detector, and based on the first structural parameter and the second structural parameter, respectively calculating the amount of radiation received by the detector under different parameter values ​​includes:

[0125] Based on the size of the radiation source in the first structural parameter, the effective activity area of ​​the radiation source is discretized into multiple radiation points; based on the different sizes of the detectors in the second structural parameter, the receiving surfaces of the detectors of different sizes are divided into multiple receiving areas; based on the spatial position of the radiation source, the spatial position of the detector, the multiple radiation points and the multiple receiving areas corresponding to the detectors of different sizes, the amount of radiation received by the detector when using detectors of different sizes is calculated.

[0126] The above discretization of the radiation source into a plurality of radiation points and the division of the detector into a plurality of receiving areas are performed in the same manner as the above related operations, which will not be described in detail here.

[0127] When the experimental variable is the size of the detector, after obtaining multiple radiation points of the radiation source and multiple receiving areas of the detector, the amount of radiation received by the detector when using detectors of different sizes is calculated based on the spatial position of the radiation source, the spatial position of the detector, the multiple radiation points, and the multiple receiving areas corresponding to the detectors of different sizes.

[0128] The radiation source is discretized into multiple radiation points, and the detector is divided into multiple receiving areas. On this basis, the amount of radiation received by the detector is calculated when using detectors of different sizes. The quantitative calculation of the amount of radiation radiated by the radiation source received by the detector is realized, and the calculation based on multiple radiation points and multiple receiving areas can make the calculation process more refined, which helps to improve the accuracy of the calculation of the radiation amount. The amount of radiation received by the detector when using detectors of different sizes is calculated separately, which provides data support for analyzing the impact of the size of the detector on the effective use of the radiation amount, which can help optimize the size design of the detector used in the target detection equipment, improve the utilization rate of the radiation in the target detection equipment, and reduce the cost of equipment use.

[0129] In some embodiments of the present application, regardless of whether the size of the detector is used as the experimental variable or the size of the radiation source is used as the experimental variable, when the structural parameters of the radiation source and the detector are given, the amount of radiation received by the detector is calculated based on the spatial position of the radiation source, the spatial position of the detector, multiple radiation points of the radiation source, and multiple receiving areas of the detector. The calculation process of the radiation amount is the same. For ease of description, the calculation process is described in detail using the first radiation source and the first detector as an example. The first radiation source is a radiation source of any size in the first structural parameter, and the first detector is a detector of any size in the second structural parameter.

[0130] The specific process of calculating the amount of radiation received by the detector includes: based on the spatial position of the first radiation source, the spatial position of the first detector, multiple radiation points corresponding to the first radiation source, and multiple receiving areas corresponding to the first detector, respectively determining the effective receiving area corresponding to each radiation point, the effective receiving area corresponding to the radiation point being a receiving area that can receive the radiation emitted by the radiation point; based on the multiple radiation points corresponding to the first radiation source and the effective receiving area corresponding to each radiation point, calculating the amount of radiation received by the first detector.

[0131] The rays from the radiation point are emitted in all directions, and some rays will be blocked by the side wall of the radiation source window, so not all receiving areas in the first detector can receive the rays emitted by the radiation point. For a radiation point, the receiving area in the first detector that cannot receive the rays from the radiation point is called an invalid receiving area, and the receiving area that can receive the rays from the radiation point is called a valid receiving area.

[0132] For each radiation point, the effective receiving area corresponding to each radiation point is first determined respectively, and then based on each radiation point and the effective receiving area corresponding to each radiation point, the amount of radiation emitted by the first radiation source received by the first detector is calculated.

[0133] The amount of radiation received by the first detector is calculated according to the effective receiving area of ​​each radiation point, the influence of the invalid receiving area on the calculation process is eliminated, the amount of calculation is reduced, and the calculation efficiency and accuracy of the radiation amount are improved.

[0134] In some embodiments of the present application, the process of determining the effective receiving area of ​​the radiation point includes:

[0135] Based on the spatial position of the first radiation source and the spatial position of the first detector, a first distance between the radiation source window and the first detector is determined; the intersection points between the lines connecting the first radiation point and each receiving area of ​​the first detector and the side wall of the radiation source window are determined respectively; the first radiation point is any radiation point among the multiple radiation points of the first radiation source; the second distance between each intersection point and the first detector is determined respectively; and the receiving area corresponding to the second distance less than the first distance is determined as the effective receiving area corresponding to the first radiation point.

[0136] The first distance is the vertical distance between the lower edge of the radiation source window and the plane where the first detector is located. Figure 6 In the schematic diagram of the positional relationship between the radiation point and the receiving area shown in FIG. , L1 represents the first distance. Figure 6 It can be seen that the line between the radiation point and the receiving area is the line between the radiation point and the center point of the receiving area, and the intersection between this line and the side wall of the radiation source window is marked as A. Figure 6 L2 shows the vertical distance between the intersection A and the plane where the first detector is located, that is, the second distance mentioned above.

[0137] For each receiving area in the first detector, the connecting line between the first radiation point and the coordinates of the center point of each receiving area is determined in the above manner, and the intersection point between the connecting line corresponding to each receiving area and the side wall of the radiation source window is determined. Then, the vertical distance between the intersection point corresponding to each receiving area and the plane where the first detector is located is determined, that is, the second distance corresponding to each receiving area is determined.

[0138] In the above process, if the line connecting the receiving area and the first radiation point has no intersection with the side wall of the radiation source window, the second distance corresponding to the receiving area is set to 0.

[0139] After determining the second distance corresponding to each receiving area, each second distance is compared with the first distance between the radiation source window and the first detector. If the second distance is greater than or equal to the first distance, it is determined that the receiving area corresponding to the second distance cannot receive the rays of the first radiation point because the rays are blocked. If the second distance is less than the first distance, it is determined that the receiving area corresponding to the second distance can receive the distance of the first reflection point, and the receiving area is an effective receiving area of ​​the first radiation point.

[0140] By the above method, effective receiving areas corresponding to the first radiation point are screened out from the receiving areas of the first detector. For other radiation points of the first radiation source, effective receiving areas corresponding to other radiation points are determined in the same way.

[0141] In this embodiment, a spatial straight line is drawn between the coordinates of the radiation point and the center point of the receiving area. Whether the ray is blocked is identified by judging the intersection position of the straight line and the protective wall of the radiation source window. If the ray is blocked, the ray amount of the corresponding invalid receiving area is not calculated.

[0142] In this embodiment, based on the spatial geometric relationship between the radiation point and the receiving area, it is possible to accurately determine whether the receiving area is unable to receive the radiation from the radiation point due to shading of the radiation, thereby improving the accuracy of determining the effective receiving area corresponding to the radiation point.

[0143] In some embodiments of the present application, after determining the effective receiving area of ​​the radiation point, the amount of radiation emitted by the first radiation source and received by the first detector is calculated in the following manner, specifically including:

[0144] Based on multiple radiation points corresponding to the first radiation source and the effective receiving areas corresponding to each radiation point, the amount of radiation emitted by the corresponding radiation point and received by each effective receiving area of ​​each radiation point is calculated respectively; the amount of radiation received by each effective receiving area of ​​each radiation point is accumulated to obtain the amount of radiation emitted by the first radiation source received by the first detector.

[0145] One radiation point corresponds to at least one effective receiving area. For each receiving area in the at least one effective receiving area, the amount of radiation emitted by the radiation point received by the receiving area is calculated. In this way, the amount of radiation received by each effective receiving area of ​​each radiation point is calculated respectively. All the calculated radiation amounts are accumulated to obtain the amount of radiation emitted by the first radiation source received by the first detector.

[0146] Through the radiation point and the effective receiving area, the calculation process of the radiation amount emitted by the first radiation source received by the first detector is refined into the calculation process of the radiation amount received by multiple effective receiving areas. The complex problem is simplified by refinement, and the quantitative calculation of the radiation utilization is realized. In addition, the influence of the invalid receiving area is eliminated in the calculation process, which improves the efficiency and accuracy of the radiation amount calculation.

[0147] In some embodiments of the present application, since the calculation process of the amount of radiation received by each effective receiving area of ​​each radiation point is the same, the calculation process is described in detail by taking the first radiation point and the first effective receiving area as an example. The first radiation point is any radiation point of the first radiation source, and the first effective receiving area is any effective receiving area among the effective receiving areas corresponding to the first radiation point.

[0148] Specifically, based on the coordinates of the first radiation point, the center coordinates of the first effective receiving area, and the area of ​​the first effective receiving area, the amount of radiation emitted by the first radiation point and received by the first effective receiving area is calculated.

[0149] Based on the coordinates of the first radiation point, the center coordinates of the first effective receiving area and the area of ​​the first effective receiving area, the amount of rays emitted by the first radiation point and received by the first effective receiving area can be calculated through simple calculations. The calculation process is simple, the amount of calculation is small, and the calculation efficiency and accuracy are high.

[0150] In some embodiments of the present application, the radiation from the radiation source is scattered in all directions. The amount of radiation that hits the detector is related to the area and distance of the detector. Specifically, the amount of radiation received by the first effective receiving area from the first radiation point is calculated by the following process, including:

[0151] Based on the coordinates of the first radiation point and the center coordinates of the first effective receiving area, determine the distance between the first radiation point and the first effective receiving area in the first direction and the distance in the second direction; the first direction is perpendicular to the second direction; based on the distance in the first direction and the distance in the second direction, calculate the angle between the line between the coordinates of the first radiation point and the center coordinates of the first effective receiving area and the plane where the first effective receiving area is located; based on the distance in the first direction, the distance in the second direction, the angle, the area of ​​the first effective receiving area and the preset total amount of rays emitted by the first radiation point, calculate the amount of rays emitted by the first radiation point received by the first effective receiving area.

[0152] In the application scenario where the first radiation source is located above the first detector, the first direction may be a vertical direction. The second direction may be a horizontal direction. The distance between the first radiation point and the first effective receiving area in the first direction, the distance in the second direction, and the line connecting the first radiation point and the first effective receiving area may form a right triangle. In the application scenario where the relative spatial position of the first radiation source and the first detector is any other situation, the first direction and the second direction may both enable the distance in the first direction, the distance in the second direction, and the line connecting the first radiation point and the first effective receiving area to form a right triangle.

[0153] The distance in the first direction may be the vertical distance between the coordinates of the first radiation point and the plane where the first detector is located. A vertical line is drawn from the coordinates of the first radiation point to the plane where the first detector is located, and the vertical distance between the center coordinates of the first effective receiving area and the vertical line is the distance in the second direction.

[0154] Figure 7 A schematic diagram of the spatial geometric relationship between the first radiation point and the first effective receiving area is shown, in which L3 is the distance in the first direction, L4 is the distance in the second direction, and θ is the angle between the line between the coordinates of the first radiation point and the center coordinates of the first effective receiving area and the plane where the first effective receiving area is located.

[0155] The radiation amount emitted by the first radiation point and received by the first effective receiving area is calculated based on the distance L3 in the first direction, the distance L4 in the second direction, the angle θ, the area of ​​the first effective receiving area and the preset total radiation amount emitted by the first radiation point.

[0156] Specifically, the amount of radiation emitted by the first radiation point and received by the first effective receiving area can be calculated by the following formula:

[0157]

[0158] in, A jk is the area of ​​the first effective receiving area, I ijk I is the amount of radiation emitted by the first radiation point i received by the first effective receiving area. i is the preset total radiation dose of the first radiation point i.

[0159] Based on the coordinates of the first radiation point and the center coordinates of the first effective receiving area, the distance between the first radiation point and the center point of the first effective receiving area in the first direction and the second direction is determined. Based on the calculated distance data and the area of ​​the first effective receiving area, the amount of radiation emitted by the first radiation point received by the first effective receiving area is calculated through mathematical operations, thereby realizing quantitative calculation of the radiation amount, and the calculation process is simple and efficient.

[0160] For each other effective receiving area of ​​the first radiation point, the amount of radiation received by each other effective receiving area from the first radiation point is calculated in the same manner as the first effective receiving area. For each other radiation point of the first radiation source, the amount of radiation received by the effective receiving area of ​​the other radiation point is calculated in the same manner as the first radiation point.

[0161] Afterwards, the radiation received by each effective receiving area of ​​the same radiation point is accumulated to obtain the radiation received by the detector from the same radiation point. The radiation received by the detector from each radiation point is accumulated to obtain the radiation received by the detector from the radiation source.

[0162] In other embodiments, the radiation doses received by each radiation point in the same effective receiving area are accumulated to obtain the total radiation dose received by the same effective receiving area from the radiation source.

[0163] The radiation amounts emitted by each radiation point received by the effective receiving area are accumulated respectively to obtain the total amount of radiation received by each effective receiving area. Based on the total amount of radiation received by each effective receiving area, a ray spatial distribution diagram of each receiving area of ​​the first detector is displayed.

[0164] like Figure 8 The spatial distribution diagram of the radioactive source activity in each receiving area of ​​the detector is shown. Each grid in the distribution diagram represents a receiving area, and the height of the grid can represent the radioactive source activity of the receiving area. The radioactive source activity of the receiving area can be converted based on the amount of radiation received in the receiving area. The radioactive source activity refers to the number of nuclear decays of a certain amount of radioactive nuclides in a very short time interval. Each decay will emit a particle. Therefore, the radioactive source activity can be obtained by simply converting the amount of radiation received in the receiving area.

[0165] The smaller the size of the receiving areas divided by the detector and the greater their number, the more detailed and accurate the data distribution in the drawn spatial distribution map will be.

[0166] Based on the calculated radiation dose, the spatial distribution diagram of the radiation is displayed, which can intuitively show the user the radiation distribution of the radiation source in each receiving area of ​​the detector, making it convenient for the user to understand the spatial distribution of the radioactive intensity of the radiation source. It has guiding significance for the setting of the relative spatial position of the radiation source and the detector in the target detection equipment, and can guide the user to adjust the placement of the radiation source so that the radiation of the radiation source can fall more concentratedly on the receiving surface of the detector.

[0167] In some embodiments of the present application, the experimental variable includes the size of the radiation source. For radiation sources with different sizes, the radiation doses received by the detector from radiation sources with different sizes are calculated in the manner described above. Based on the calculated radiation doses corresponding to radiation sources with different sizes, first correlation relationship data between the size of the radiation source and the radiation dose received by the detector is generated. Based on the first correlation relationship data, the size of the radiation source that maximizes the radiation dose is determined.

[0168] The first association relationship data may include but is not limited to a relationship table or a relationship curve.

[0169] The amount of radiation received by the same detector from sources of different sizes is calculated, which provides data support for analyzing the impact of the size of the radiation source on the utilization of radiation. Based on the calculated data, a mapping relationship between the size of the radiation source and the amount of radiation received by the detector is established, and then the size of the radiation source that makes the detector receive the largest amount of radiation among these different radiation source sizes is determined. The size of the radiation source determined in this way has guiding significance for the size design of the radiation source in the target detection equipment, and helps to improve the radiation utilization rate of the radiation source in the target detection equipment by improving the size of the radiation source, extend the service life of the radiation source, reduce the replacement frequency of the radiation source, and reduce the use cost of the target detection equipment.

[0170] In other embodiments of the present application, the experimental variable includes the size of the detector. For detectors with different size values, the amount of radiation received by the detectors of different sizes from the same radiation source is calculated in the manner described above. Based on the calculated amount of radiation received by the detectors of different sizes, second association relationship data between the size of the detector and the amount of radiation received is generated. Based on the second association relationship data, the size of the detector that maximizes the amount of radiation received is determined.

[0171] The second association relationship data may include but is not limited to a relationship table or a relationship curve.

[0172] The amount of radiation received by detectors of different sizes from the same radiation source is calculated, which provides data support for analyzing the impact of detector size on radiation utilization. Based on the calculated data, a mapping relationship between the detector size and the amount of radiation received by the detector is established, and then the size of the detector that maximizes the amount of radiation received by the detector among these different detector sizes is determined. The size of the detector determined in this way has guiding significance for the size design of the detector in the target detection equipment, and helps to improve the radiation utilization rate of the radiation source in the target detection equipment by improving the size of the detector, extend the service life of the radiation source, reduce the replacement frequency of the radiation source, and reduce the use cost of the target detection equipment.

[0173] In some embodiments of the present application, the correlation relationship data includes a relationship curve between the parameter value of the experimental variable and the amount of radiation received by the detector, and the relationship curve is displayed.

[0174] In some embodiments, the first correlation relationship data is a relationship curve between the size of the radiation source and the radiation dose. The second correlation relationship data is a relationship curve between the size of the detector and the radiation dose. The corresponding relationship curve is drawn and displayed.

[0175] like Fig. 9A schematic diagram showing the relationship curves between different radiation source sizes and radiation doses is shown, wherein the relationship curves between different radiation source sizes and radiation doses at the center plane position of the detector are shown, and the center plane position is an area with a certain length as the radius and the center coordinate of the detector as the center of the circle. Fig. 9 The amount of radiation is expressed in terms of radiation intensity.

[0176] like Fig.10 The figure shows the relationship between different radiation source sizes and effective radiation dose, where the effective radiation dose is the radiation dose received by the detector calculated by the above method. Fig.10 It can be seen that when the diameter of the radiation source is about 26mm, the effective radiation dose of the radiation source is the highest.

[0177] Based on the calculated radiation dose, a relationship curve between different parameter values ​​of the experimental variable and the radiation dose is drawn and displayed, so that the user can intuitively see the parameter value that maximizes the radiation dose from the displayed relationship curve.

[0178] In the embodiment of the present application, a quantitative analysis of the relationship between the experimental variable and the amount of radiation received by the detector is realized, and the target parameter value of the experimental variable that maximizes the amount of radiation received can be determined. The experimental variable can be set to the size of the radiation source or the size of the detector. By analyzing the relationship between the size of the radiation source and the effective amount of radiation, or analyzing the relationship between the size of the detector and the effective amount of radiation, it has guiding significance for the structural design of the radiation source or detector in the detection equipment, which is conducive to improving the radiation utilization rate of the radiation source in the detection equipment, extending the service life of the radiation source, reducing the replacement frequency of the radiation source in the detection equipment, and thus reducing the use cost of the detection equipment.

[0179] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0180] The following is a specific example to illustrate the method for confirming the utilization rate of the radiation source in some embodiments of the present application. In this method, an area density measuring instrument is used as an example of the target detection device.

[0181] In this specific example, the shape of the detector is rectangular, and the size of one side of the detector is set as an experimental variable. The spatial position of the radiation source and the detector in the surface density meter remains unchanged, the shape and size of the radiation source remain unchanged, and the size of the other sides of the detector except the side used as the experimental variable remains unchanged. The length of the side of the detector is designed to be 20 mm and 40 mm. The effective activity area of ​​the radiation source is discretized into multiple radiation points.

[0182] For a detector with a side length of 20 mm, the detector with a side length of 20 mm is divided into multiple receiving areas. By simulating the spatial geometric relationship between each radiation point and each receiving area, it is determined whether each receiving area can receive the radiation of the radiation point, and the effective receiving area of ​​the radiation point is determined.

[0183] Based on the coordinates of each radiation point, the center coordinates of each effective receiving area and the area of ​​each effective receiving area, the radiation amount received by each effective receiving area at the corresponding radiation point is calculated. The radiation amount received by each effective receiving area is accumulated to obtain the radiation amount received by the detector with a side length of 20 mm.

[0184] Similarly, a detector with a side length of 40 mm is divided into a plurality of receiving areas. The radiation amount received by the detector with a side length of 40 mm from the radiation source is calculated in the same manner.

[0185] By comparison, it is found that the radiation received by the detector with a side length of 40mm is 76% higher than that received by the detector with a side length of 20mm. Therefore, the side length of the detector can be set to 40mm in the area density meter to improve the utilization rate of the radiation in the area density meter, extend the service life of the radiation source, and reduce the use cost of the area density meter.

[0186] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0187] Some embodiments of the present application also provide a device for confirming the utilization rate of a radiation source, such as Fig.11 As shown, the device comprises:

[0188] An acquisition module 201 is used to acquire a first structural parameter of a radiation source and a second structural parameter of a detector in a target detection device, wherein one of the first structural parameter and the second structural parameter includes different parameter values ​​of experimental variables;

[0189] A calculation module 202, configured to calculate the radiation amount received by the detector under different parameter values ​​based on the first structural parameter and the second structural parameter;

[0190] The determination module 203 is used to determine the target parameter value of the experimental variable that maximizes the radiation dose based on the radiation doses corresponding to different parameter values.

[0191] In some embodiments of the present application, the first structural parameter includes the spatial position of the radiation source in the target detection device and the size of the radiation source; the second structural parameter includes the spatial position of the detector in the target detection device and the size of the detector; and the experimental variable includes one of the size of the radiation source and the size of the detector.

[0192] In some embodiments of the present application, the experimental variables include the size of the radiation source, and the calculation module 202 is used to discretize the effective activity area of ​​the radiation source of different sizes into multiple radiation points based on the different sizes of the radiation source in the first structural parameter; divide the receiving surface of the detector into multiple receiving areas based on the size of the detector in the second structural parameter; and calculate the amount of radiation received by the detector when using radiation sources of different sizes based on the spatial position of the radiation source, the spatial position of the detector, the multiple receiving areas, and the multiple radiation points corresponding to the radiation sources of different sizes.

[0193] In some embodiments of the present application, the experimental variables include the size of the detector, and the calculation module 202 is used to discretize the effective activity area of ​​the radiation source into multiple radiation points based on the size of the radiation source in the first structural parameter; based on the different sizes of the detector in the second structural parameter, divide the receiving surfaces of detectors of different sizes into multiple receiving areas; based on the spatial position of the radiation source, the spatial position of the detector, the multiple radiation points and the multiple receiving areas corresponding to the detectors of different sizes, respectively calculate the amount of radiation received by the detector when using detectors of different sizes.

[0194] The calculation module 202 is used to determine the effective receiving area corresponding to each radiation point based on the spatial position of the first radiation source, the spatial position of the first detector, the multiple radiation points corresponding to the first radiation source, and the multiple receiving areas corresponding to the first detector, where the effective receiving area corresponding to the radiation point is a receiving area that can receive the radiation emitted by the radiation point; based on the multiple radiation points corresponding to the first radiation source and the effective receiving area corresponding to each radiation point, calculate the amount of radiation received by the first detector; wherein the first radiation source is a radiation source of any size in the first structural parameter, and the first detector is a detector of any size in the second structural parameter.

[0195] The calculation module 202 is used to determine a first distance between the radiation source window and the first detector based on the spatial position of the first radiation source and the spatial position of the first detector; respectively determine the intersection points between the lines connecting the first radiation point and each receiving area of ​​the first detector and the side wall of the radiation source window; the first radiation point is any radiation point among the multiple radiation points of the first radiation source; respectively determine the second distance between each intersection point and the first detector; and determine the receiving area corresponding to the second distance less than the first distance as the effective receiving area corresponding to the first radiation point.

[0196] The calculation module 202 is used to calculate the amount of radiation emitted by the corresponding radiation point and received by each effective receiving area of ​​each radiation point based on multiple radiation points corresponding to the first radiation source and the effective receiving area corresponding to each radiation point; the amount of radiation received by each effective receiving area of ​​each radiation point is accumulated to obtain the amount of radiation emitted by the first radiation source received by the first detector.

[0197] The calculation module 202 is used to calculate the amount of radiation emitted by the first radiation point and received by the first effective receiving area based on the coordinates of the first radiation point, the center coordinates of the first effective receiving area and the area of ​​the first effective receiving area; wherein the first radiation point is any radiation point of the first radiation source, and the first effective receiving area is any effective receiving area among the effective receiving areas corresponding to the first radiation point.

[0198] The calculation module 202 is used to determine the distance between the first radiation point and the first effective receiving area in the first direction and the distance in the second direction based on the coordinates of the first radiation point and the center coordinates of the first effective receiving area; the first direction is perpendicular to the second direction; based on the distance in the first direction and the distance in the second direction, calculate the angle between the line between the coordinates of the first radiation point and the center coordinates of the first effective receiving area and the plane where the first effective receiving area is located; based on the distance in the first direction, the distance in the second direction, the angle, the area of ​​the first effective receiving area and the preset total amount of rays emitted by the first radiation point, calculate the amount of rays emitted by the first radiation point received by the first effective receiving area.

[0199] The device also includes: a display module, which is used to accumulate the amount of rays emitted by each radiation point received by the effective receiving area to obtain the total amount of rays received by each effective receiving area; based on the total amount of rays received by each effective receiving area, display the ray spatial distribution diagram of each receiving area of ​​the first detector.

[0200] In some embodiments of the present application, the experimental variables include the size of the radiation source, and the determination module 203 is used to generate first correlation relationship data between the size of the radiation source and the amount of radiation received by the detector based on the calculated radiation amount corresponding to the radiation sources of different sizes; based on the first correlation relationship data, determine the size of the radiation source that maximizes the radiation amount.

[0201] In other embodiments of the present application, the experimental variables include the size of the detector, and the determination module 203 is used to generate second association relationship data between the size of the detector and the amount of radiation received based on the calculated amount of radiation received by detectors of different sizes; based on the second association relationship data, determine the size of the detector that maximizes the amount of radiation received.

[0202] In some embodiments of the present application, the association relationship data includes a relationship curve between the parameter value of the experimental variable and the amount of radiation received by the detector, and the display module is also used to display the relationship curve.

[0203] The device provided in the embodiment of the present application and the method provided in the embodiment of the present application are based on the same inventive concept and have the same beneficial effects as the methods adopted, operated or implemented by them.

[0204] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0205] Another embodiment of the present application provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the program to implement the thermal management control method of any of the above embodiments. The electronic device includes but is not limited to a vehicle controller, a domain controller, etc.

[0206] like Fig.12 As shown, the electronic device 60 may include: a processor 600, a memory 601, a bus 602 and a communication interface 603, and the processor 600, the communication interface 603 and the memory 601 are connected via the bus 602; the memory 601 stores a computer program that can be run on the processor 600, and when the processor 600 runs the computer program, it executes the method provided in any of the aforementioned embodiments of the present application.

[0207] The memory 601 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk memory. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 603 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used.

[0208] The bus 602 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory 601 is used to store a program, and the processor 600 executes the program after receiving an execution instruction. The method disclosed in any implementation of the aforementioned embodiment of the present application may be applied to the processor 600, or implemented by the processor 600.

[0209] The processor 600 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 600. The above processor 600 can be a general-purpose processor, which may include a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application can be directly embodied as a hardware decoding processor to be executed, or the hardware and software modules in the decoding processor can be executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 601, and the processor 600 reads the information in the memory 601 and completes the steps of the above method in combination with its hardware.

[0210] The electronic device provided in the embodiment of the present application and the method provided in the embodiment of the present application are based on the same inventive concept and have the same beneficial effects as the method adopted, operated or implemented by them.

[0211] Another embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, the program being executed by a processor to implement the method of any of the above-mentioned embodiments.

[0212] refer to Fig.13 As shown, the computer-readable storage medium shown is a CD 20 on which a computer program (ie, a program product) is stored. When the computer program is run by a processor, the method provided by any of the aforementioned embodiments will be executed.

[0213] It should be noted that examples of computer-readable storage media may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical or magnetic storage media, which are not listed here one by one.

[0214] The computer-readable storage medium provided in the above-mentioned embodiments of the present application and the method provided in the embodiments of the present application are based on the same inventive concept and have the same beneficial effects as the method adopted, run or implemented by the application program stored therein.

[0215] Another embodiment of the present application provides an area density meter, such as Fig.14 As shown, the surface density meter 6 includes a radiation source 1 and a detector 3, and the structural parameters of at least one of the radiation source 1 and the detector 3 are determined by the method described in any of the above embodiments.

[0216] Another embodiment of the present application also provides a coating system, such as Fig.15 As shown, the coating system 7 includes the surface density meter 6 provided in the above embodiment.

[0217] The surface density meter and coating system provided in the above-mentioned embodiments of the present application are based on the same inventive concept as the method provided in the embodiments of the present application, and have the same beneficial effects as the method adopted, run or implemented by the application program stored therein.

[0218] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0219] It should be noted that:

[0220] The term "module" is not intended to be limited to a specific physical form. Depending on the specific application, a module can be implemented as hardware, firmware, software, and / or a combination thereof. In addition, different modules can share common components or even be implemented by the same components. There may or may not be clear boundaries between different modules.

[0221] The algorithm and display provided herein are not inherently related to any specific computer, virtual device or other equipment. Various general devices can also be used together with examples based on this. According to the above description, it is obvious to construct the structure required for this type of device. In addition, the application is not directed to any specific programming language yet. It should be understood that various programming languages ​​can be utilized to realize the content of the application described herein, and the description made to specific languages ​​above is for the purpose of disclosing the best mode of implementation of the application.

[0222] It should be understood that, although the steps in the flowchart of the accompanying drawings are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least a part of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a part of the sub-steps or stages of other steps.

[0223] The above embodiments only express the implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for confirming the utilization rate of a radioactive source, characterized in that: The method comprises: Acquiring a first structural parameter of a radiation source and a second structural parameter of a detector in a target detection device, wherein one of the first structural parameter and the second structural parameter includes a different parameter value of an experimental variable; Based on the first structural parameter and the second structural parameter, respectively calculating the radiation amount received by the detector under the different parameter values; Based on the radiation doses corresponding to the different parameter values, a target parameter value of the experimental variable that maximizes the radiation dose is determined.

2. The method according to claim 1, characterized in that The first structural parameter includes the spatial position of the radiation source in the target detection device and the size of the radiation source; the second structural parameter includes the spatial position of the detector in the target detection device and the size of the detector; The experimental variable includes one of a size of the radiation source and a size of the detector.

3. The method according to claim 2, characterized in that The experimental variables include the size of the radiation source, and the calculation of the radiation amount received by the detector under different parameter values ​​based on the first structural parameter and the second structural parameter includes: Based on different sizes of the radiation source in the first structural parameter, the effective activity areas of the radiation sources of different sizes are discretized into a plurality of radiation points; Based on the size of the detector in the second structural parameter, dividing the receiving surface of the detector into a plurality of receiving areas; Based on the spatial position of the radiation source, the spatial position of the detector, the multiple receiving areas and the multiple radiation points corresponding to the radiation sources of different sizes, the radiation doses received by the detector when the radiation sources of different sizes are used are calculated respectively.

4. The method according to claim 2, characterized in that: The experimental variables include the size of the detector, and the calculation of the radiation amount received by the detector under different parameter values ​​based on the first structural parameter and the second structural parameter includes: Based on the size of the radiation source in the first structural parameter, discretizing the effective activity area of ​​the radiation source into a plurality of radiation points; Based on different sizes of the detectors in the second structural parameter, the receiving surfaces of the detectors of different sizes are divided into a plurality of receiving areas respectively; Based on the spatial position of the radiation source, the spatial position of the detector, the multiple radiation points and the multiple receiving areas corresponding to the detectors of different sizes, the amount of radiation received by the detector when the detectors of different sizes are used is calculated respectively.

5. The method according to claim 3 or 4, characterized in that: Calculate the amount of radiation received by the detector, including: Based on the spatial position of the first radiation source, the spatial position of the first detector, the multiple radiation points corresponding to the first radiation source, and the multiple receiving areas corresponding to the first detector, respectively determine the effective receiving area corresponding to each radiation point, where the effective receiving area corresponding to the radiation point is a receiving area that can receive the rays emitted by the radiation point; Calculating the radiation amount received by the first detector based on a plurality of radiation points corresponding to the first radiation source and an effective receiving area corresponding to each radiation point; The first radiation source is a radiation source of any size within the first structural parameters, and the first detector is a detector of any size within the second structural parameters.

6. The method according to claim 5, characterized in that The determining of the effective receiving area corresponding to each radiation point based on the spatial position of the first radiation source, the spatial position of the first detector, the multiple radiation points corresponding to the first radiation source, and the multiple receiving areas corresponding to the first detector includes: Determining a first distance between a radiation source window and the first detector based on a spatial position of a first radiation source and a spatial position of a first detector; Determine the intersection points between the lines connecting the first radiation point and each receiving area of ​​the first detector and the side wall of the radiation source window respectively; the first radiation point is any radiation point among the multiple radiation points of the first radiation source; respectively determining a second distance between each intersection point and the first detector; A receiving area corresponding to a second distance smaller than the first distance is determined as an effective receiving area corresponding to the first radiation point.

7. The method according to claim 5, characterized in that The calculating the radiation amount received by the first detector based on the multiple radiation points corresponding to the first radiation source and the effective receiving area corresponding to each radiation point includes: Based on the multiple radiation points corresponding to the first radiation source and the effective receiving area corresponding to each radiation point, respectively calculating the amount of radiation emitted by the corresponding radiation point received by each effective receiving area of ​​each radiation point; The radiation amounts received by each effective receiving area of ​​each radiation point are accumulated to obtain the radiation amount emitted by the first radiation source and received by the first detector.

8. The method according to claim 7, characterized in that The calculating, based on the plurality of radiation points corresponding to the first radiation source and the effective receiving area corresponding to each radiation point, respectively the amount of radiation received by each effective receiving area of ​​each radiation point emitted by the corresponding radiation point comprises: Calculating the amount of radiation emitted by the first radiation point and received by the first effective receiving area based on the coordinates of the first radiation point, the center coordinates of the first effective receiving area, and the area of ​​the first effective receiving area; The first radiation point is any radiation point of the first radiation source, and the first effective receiving area is any effective receiving area among the effective receiving areas corresponding to the first radiation point.

9. The method according to claim 8, characterized in that The calculating, based on the coordinates of the first radiation point, the center coordinates of the first effective receiving area, and the area of ​​the first effective receiving area, the amount of radiation emitted by the first radiation point received by the first effective receiving area includes: Based on the coordinates of the first radiation point and the center coordinates of the first effective receiving area, determining the distance between the first radiation point and the first effective receiving area in a first direction and a distance in a second direction; the first direction is perpendicular to the second direction; Based on the distance in the first direction and the distance in the second direction, calculating an angle between a line connecting the coordinates of the first radiation point and the center coordinates of the first effective receiving area and a plane where the first effective receiving area is located; The amount of radiation emitted by the first radiation point and received by the first effective receiving area is calculated based on the distance in the first direction, the distance in the second direction, the angle, the area of ​​the first effective receiving area and the preset total radiation amount emitted by the first radiation point.

10. The method according to any one of claims 7 to 9, characterized in that: The method further comprises: The amount of radiation emitted by each radiation point received by the effective receiving area is accumulated respectively to obtain the total amount of radiation received by each effective receiving area; Based on the total amount of radiation received by each effective receiving area, a spatial distribution diagram of radiation in each receiving area of ​​the first detector is displayed.

11. The method according to any one of claims 2 to 10, characterized in that: The experimental variable includes the size of the radiation source, and the determining of the target parameter value of the experimental variable that maximizes the radiation dose based on the radiation doses corresponding to the different parameter values ​​includes: Based on the calculated radiation doses corresponding to radiation sources of different sizes, generating first correlation relationship data between the size of the radiation source and the radiation dose received by the detector; Based on the first association relationship data, the size of the radiation source that maximizes the radiation dose is determined.

12. The method according to any one of claims 2 to 10, characterized in that: The experimental variable includes the size of the detector, and determining the target parameter value of the experimental variable that maximizes the radiation amount based on the radiation amounts corresponding to the different parameter values ​​includes: Based on the calculated radiation doses received by detectors of different sizes, generating second correlation relationship data between the size of the detector and the radiation dose received; Based on the second association relationship data, a size of the detector that maximizes the amount of radiation received is determined.

13. The method according to claim 11 or 12, characterized in that: The association relationship data includes a relationship curve between the parameter value of the experimental variable and the amount of radiation received by the detector, and the method further includes: displaying the relationship curve.

14. A device for confirming the utilization rate of a radioactive source, characterized in that: The device comprises: An acquisition module, used for acquiring a first structural parameter of a radiation source and a second structural parameter of a detector in a target detection device, wherein one of the first structural parameter and the second structural parameter comprises different parameter values ​​of experimental variables; A calculation module, configured to calculate the radiation amount received by the detector under the different parameter values ​​based on the first structural parameter and the second structural parameter; A determination module is used to determine the target parameter value of the experimental variable that maximizes the radiation amount based on the radiation amounts corresponding to the different parameter values.

15. An electronic device, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method according to any one of claims 1 to 14.

16. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the method according to any one of claims 1 to 14.

17. An area density meter, characterized in that: The invention comprises a radiation source and a detector, wherein the structural parameters of at least one of the radiation source and the detector are determined by the method according to any one of claims 1 to 14.

18. A coating system, characterized in that: Including the surface density meter described in claim 17.

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