Preparation method and preparation device of pixelated neutron-sensitive scintillation screen
By filling the neutron-sensitive mixture into the glass capillary array using a circulating peristaltic pump, the problems of time-consuming, labor-consuming and uneven filling of manual filling are solved, and efficient and uniform phosphor filling effect is achieved.
Patent Information
- Application Number
- CN202411645647.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-04-08
AI Technical Summary
In the prior art, filling the phosphor by manually flipping the microchannel plate repeatedly, it consumes time and effort, increases labor costs, and cannot control the uniformity of the phosphor filling, resulting in the problem of uneven filling.
The circulating peristaltic pump is used to connect the neutron-sensitive mixture to the glass capillary array. The mixture is absorbed through the circulating peristaltic pump and flows forward or reversely through the glass capillary array to achieve uniform filling of the phosphor.
It reduces the cost of manual filling, achieves uniform distribution of phosphor, and solves the problem of uneven manual filling.
Smart Images
Figure CN119786116A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of neutron detection and imaging, and in particular to a method and a device for preparing a pixelated neutron-sensitive scintillation screen. Background Art
[0002] Pixelated neutron imaging plays an irreplaceable role in the nondestructive testing of lightweight materials. Neutron imaging detectors are the core of this technology. Microstructured scintillator screens are used in the development of high-performance neutron imaging detectors and have been proven to be one of the ideal choices for high-performance neutron detectors.
[0003] In the related art, a suction filtration method is used to manually fill a microchannel plate (glass capillary array) with ethanol / acetone mixed with micron-sized phosphors multiple times, and the microchannel plate needs to be repeatedly flipped over so that both ends are filled with phosphors. After the ethanol / acetone evaporates, the phosphors remain in the microchannel plate. Compared with glass, the phosphors have a higher light yield.
[0004] However, this method requires manual repeated flipping of the microchannel plate for filling, which is time-consuming and labor-intensive, and increases labor costs. At the same time, the uniformity of the phosphor filling cannot be controlled by manual filling of the phosphor.
[0005] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention
[0006] The embodiments of the present invention provide a method and a device for preparing a pixelated neutron-sensitive scintillation screen, so as to at least solve the above technical problems.
[0007] According to one aspect of an embodiment of the present invention, a method for preparing a pixelated neutron-sensitive scintillator screen is provided, comprising: preparing a neutron-sensitive mixed liquid; placing the neutron-sensitive mixed liquid in a container; connecting the container to a glass capillary array via a circulating peristaltic pump, wherein the circulating peristaltic pump is used to absorb the neutron-sensitive mixed liquid in the container and transfer it to the glass capillary array, the glass capillary array is used to support the pixelated neutron-sensitive scintillator screen and fill the pixelated neutron-sensitive scintillator screen with the neutron-sensitive mixed liquid; within a preset first working time, starting the circulating peristaltic pump, wherein the circulating peristaltic pump can absorb the neutron-sensitive mixed liquid to flow through the glass capillary array in a forward direction, and can also absorb the neutron-sensitive mixed liquid to flow through the glass capillary array in a reverse direction; after the first working time is reached, taking out the glass capillary array to obtain the pixelated neutron-sensitive scintillator screen.
[0008] Optionally, the preparation of the neutron sensitive mixed solution includes: mixing gadolinium oxysulfide, 10 boron and zinc sulfide powders with a particle size of 100 nanometers to obtain phosphor; and using a volatile organic solvent to dissolve the phosphor to obtain the neutron sensitive mixed solution.
[0009] Optionally, before starting the circulating peristaltic pump within the preset first working time, the method further includes: continuously vibrating the container within a preset second working time.
[0010] Optionally, the first working time is 10 to 20 minutes; the second working time is 5 to 10 minutes.
[0011] According to another aspect of an embodiment of the present invention, there is also provided a device for preparing a pixelated neutron-sensitive scintillation screen, comprising: a container, a pipeline assembly, a glass capillary array and a circulating peristaltic pump, for executing any one of the methods for preparing a pixelated neutron-sensitive scintillation screen; the container is used to hold a neutron-sensitive mixed liquid; the pipeline assembly is connected to the container at one end and to the glass capillary array at the other end, and transports the neutron-sensitive mixed liquid to move between the container and the glass capillary array; the circulating peristaltic pump is arranged on the pipeline assembly, and drives the neutron-sensitive mixed liquid to circulate between the container and the glass capillary array; the circulating peristaltic pump comprises a forward rotor and a reverse rotor, the forward rotor is used to drive the neutron-sensitive mixed liquid to move from the container to the glass capillary array, and the reverse rotor is used to drive the neutron-sensitive mixed liquid to move from the glass capillary array to the container.
[0012] Optionally, the pipeline assembly includes a first pipeline and a second pipeline; the first pipeline is connected to the container at one end and to the glass capillary array at the other end; the second pipeline is connected to the glass capillary array at one end and to the container at the other end; the forward rotor is used to drive the neutron-sensitive mixed liquid to move in a circular motion along the direction from the container to the first pipeline, the glass capillary array, the second pipeline, and the container; the reverse rotor is used to drive the neutron-sensitive mixed liquid to move in a circular motion along the direction from the container to the second pipeline, the glass capillary array, the first pipeline, and the container.
[0013] Optionally, it also includes: a support frame, which is provided with a plurality of holes for the glass capillary array to pass through, and is used to fix and support the glass capillary array; the holes are evenly arranged in the horizontal direction.
[0014] Optionally, it also includes: a filtration guard plate, the support frame is fixedly installed inside, is semi-enclosed, and is provided with an opening connected to the pipeline assembly along the direction passing through the hole.
[0015] Optionally, it also includes: a fixing ring; the filtration guard plate includes a first guard plate and a second guard plate, the first guard plate and the second guard plate are symmetrically arranged along the cross-sectional direction of the hole; the first guard plate is provided with a first protrusion, and the second guard plate is provided with a second protrusion; the fixing ring sleeves the first protrusion and the second protrusion together.
[0016] Optionally, it also includes: a vibrator, in contact with the container, for vibrating the neutron-sensitive mixed liquid in the container.
[0017] In an embodiment of the present invention, the neutron-sensitive mixed liquid is placed in a container; the container is connected to a glass capillary array through a circulating peristaltic pump, wherein the circulating peristaltic pump is used to absorb the neutron-sensitive mixed liquid in the container and transfer it to the glass capillary array, the glass capillary array is used to support a pixelated neutron-sensitive scintillation screen, and fill the pixelated neutron-sensitive scintillation screen with the neutron-sensitive mixed liquid; within a preset first working time, the circulating peristaltic pump is started, wherein the circulating peristaltic pump can absorb the neutron-sensitive mixed liquid to flow through the glass capillary array in a forward direction, and can also absorb the neutron-sensitive mixed liquid to flow through the glass capillary array in a reverse direction; after the first working time is reached, the glass capillary array is taken out to obtain the pixelated neutron-sensitive scintillation screen, thereby achieving the purpose of replacing manual labor with a circulating peristaltic pump to control the neutron-sensitive mixed liquid to fill the glass capillary array in a forward or reverse direction, thereby achieving the technical effect of reducing labor costs and making the filling more uniform, thereby solving the technical problems of increased labor costs and uneven filling due to manual filling of phosphors into the glass capillary array. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
[0019] Figure 1 is a flow chart of a method for preparing a pixelated neutron-sensitive scintillation screen according to an embodiment of the present invention;
[0020] Figure 2 A connection diagram of a device for preparing a pixelated neutron-sensitive scintillation screen provided by an embodiment of the present invention;
[0021] Figure 3 A schematic diagram of a support frame in a device for preparing a pixelated neutron-sensitive scintillation screen provided in an embodiment of the present invention;
[0022] Figure 4A schematic diagram of a filtration guard plate in a device for preparing a pixelated neutron-sensitive scintillation screen provided in an embodiment of the present invention;
[0023] Figure 5 is a flow chart of an optional method for preparing a pixelated neutron-sensitive scintillation screen according to an embodiment of the present invention;
[0024] Figure 6 It is a schematic diagram of a device corresponding to a method for preparing a pixelated neutron-sensitive scintillation screen according to an embodiment of the present invention.
[0025] The above drawings include the following reference numerals:
[0026] 1. Container; 2. Pipe assembly; 201. First pipe; 202. Second pipe; 3. Glass capillary array; 4. Circulating peristaltic pump; 5. Support frame; 501. Hole; 6. Filter guard plate; 601. First guard plate; 602. Second guard plate; 7. Fixing ring; 8. Vibrator; 9. First protrusion; 10. Second protrusion. DETAILED DESCRIPTION
[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.
[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0029] First, to facilitate understanding of the embodiments of the present invention, some terms or nouns involved in the present invention are explained below:
[0030] A pixelated neutron-sensitive scintillation screen is a screen that is formed by filling neutron-sensitive phosphors into a carrier with a tiny structure (such as a glass capillary array) and combining it with a specific preparation process to form a pixelated structure with high resolution.
[0031] The glass capillary array is a structure composed of millions of fine glass capillaries. It is composed of multiple glass capillaries that are arranged in an axially parallel manner and has good thermal stability, chemical stability and high pressure resistance.
[0032] According to an embodiment of the present invention, a method embodiment of a method for preparing a pixelated neutron-sensitive scintillation screen is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.
[0033] Figure 1 is a flow chart of a method for preparing a pixelated neutron-sensitive scintillation screen according to an embodiment of the present invention, such as Figure 1 As shown, the method comprises the following steps:
[0034] Step S102, preparing a neutron sensitive mixed solution;
[0035] In an optional embodiment, preparing a neutron sensitive mixed solution includes: mixing gadolinium oxysulfide, 10 boron and zinc sulfide powders with a particle size of 100 nanometers to obtain phosphor; and using a volatile organic solvent to dissolve the phosphor to obtain a neutron sensitive mixed solution.
[0036] Optionally, the neutron-sensitive mixed liquid is a mixed liquid obtained by mixing phosphor (neutron-sensitive scintillation powder) with a variety of volatile organic solvents, wherein the neutron-sensitive scintillation powder can be a Tb unit of gadolinium oxysulfide (GOS: Tb) with a particle size of 100 nanometers and a Tb unit of 10 boron and zinc sulfide mixed powder (10B / ZnS: Tb). The above powders are mixed by grinding and other methods to obtain phosphor. In order to ensure that the phosphor is evenly placed in the glass capillary array 3, a volatile organic solvent is used to dissolve the phosphor. The specific volatile organic solvent is alcohol, acetone, and isopropanol. Among them, the use of a volatile organic solvent to make the phosphor form a liquid and flow into the glass capillary array 3 can effectively achieve uniform distribution of the phosphor. After the phosphor is evenly distributed, the volatile organic solvent evaporates, leaving only the phosphor in the glass capillary array 3, thereby realizing the production of a pixelated neutron-sensitive scintillation screen.
[0037] Step S104, placing the neutron sensitive mixed liquid in container 1;
[0038] Optionally, the container 1 can be a glass product, such as a beaker, or a rubber product, such as a rubber cup, that is, the neutron sensitive mixed liquid can be placed in the container 1. The container 1 is an easy-to-clean container 1, which can be cleaned without residue after use. The cleaned container 1 can still be used in other situations and can be repeatedly used in multiple experiments, effectively achieving the effect of cost saving.
[0039] Step S106, connecting the container 1 to the glass capillary array 3 through the circulating peristaltic pump 4, wherein the circulating peristaltic pump 4 is used to absorb the neutron-sensitive mixed liquid in the container 1 and transfer it to the glass capillary array 3, the glass capillary array 3 is used to support the pixelated neutron-sensitive scintillation screen and fill the pixelated neutron-sensitive scintillation screen with the neutron-sensitive mixed liquid;
[0040] Optionally, the neutron-sensitive mixed liquid stored in the container 1 is uniformly sucked into the glass capillary array 3, and filled into the pixelated neutron-sensitive scintillation screen in the glass capillary array 3. The neutron-sensitive mixed liquid in the container 1 is sucked by the circulating peristaltic pump 4, and the sucked neutron-sensitive mixed liquid can be transferred to the glass capillary array 3 in the form of a pipeline assembly 2. The phosphor is effectively placed in the glass capillary array 3 by a machine, which effectively saves labor costs.
[0041] Optionally, the power of the circulating peristaltic pump 4 is adjustable, so that the density of the phosphor in the glass capillary array 3 can be controlled, that is, when a high density is required, the power of the circulating peristaltic pump 4 can be controlled to increase, and when a low density is required, the power of the circulating peristaltic pump 4 can be controlled to decrease. By adjusting the density of the phosphor, when part of the glass capillary array 3 is in an uneven state, the power of the circulating peristaltic pump 4 can be reduced, so that a small amount of phosphor fills the glass capillary array 3, so that the uneven parts in the glass capillary array 3 are filled, and the uniformity of the neutron sensitive mixed liquid is effectively controlled.
[0042] In an optional embodiment, before starting the circulating peristaltic pump 4 within the preset first working time, the container 1 is continuously vibrated within the preset second working time.
[0043] Optionally, since the container 1 contains a neutron-sensitive mixed liquid, in order to achieve uniform mixing of the phosphor in the neutron-sensitive mixed liquid and effectively ensure the uniformity when it is subsequently filled into the glass capillary array 3, a vibrator 8 can be set to continuously vibrate the container 1 so that the neutron-sensitive mixed liquid is continuously in a shaking and evenly mixed state.
[0044] Step S108 , starting the circulating peristaltic pump 4 within the preset first working time, wherein the circulating peristaltic pump 4 can draw the neutron sensitive mixed liquid to flow through the glass capillary array 3 in a forward direction, or can draw the neutron sensitive mixed liquid to flow through the glass capillary array 3 in a reverse direction.
[0045] Optionally, in order to ensure the uniformity of the neutron-sensitive mixed liquid in the glass capillary array 3, the neutron-sensitive mixed liquid needs to flow through the glass capillary array 3 in the forward direction and then flow through the glass capillary array 3 in the reverse direction. Specifically, when flowing through the glass capillary array 3 in the forward direction, the density of the phosphor retained at the entrance end may be greater than the density of the phosphor retained at the exit end, so the reverse flow is performed again to make the exit end become the entrance end, so that the neutron-sensitive mixed liquid effectively flows through the glass capillary array 3 twice, thereby improving the uniformity of the phosphor in the glass capillary array 3, and a higher quality pixelated neutron-sensitive scintillation screen can be obtained.
[0046] Step S110, after the first working time is reached, the glass capillary array 3 is taken out to obtain a pixelated neutron-sensitive scintillation screen.
[0047] In an optional embodiment, the first working time is 10 to 20 minutes; the second working time is 5 to 10 minutes.
[0048] Optionally, in order to ensure that the neutron-sensitive mixed liquid completely flows through the glass capillary array 3 and to ensure that enough fluorescent powder in the neutron-sensitive mixed liquid remains in the glass capillary array 3, the forward rotation time of the circulating peristaltic pump 4 is adjusted to 10 to 20 minutes. After 10 to 20 minutes, the extraction direction of the circulating peristaltic pump 4 is reversed, that is, the direction of rotation of the shaft wheel inside the circulating peristaltic pump 4 is reversed, so as to achieve reverse absorption of the neutron-sensitive mixed liquid, and then continue for 10 to 20 minutes. At this time, the uniformity of the pixelated neutron-sensitive scintillation screen obtained is relatively high and meets the use standards.
[0049] Optionally, the vibration of the vibrator 8 can ensure that the phosphor in the neutron-sensitive mixed liquid is evenly distributed, but continuous vibration leads to a waste of power. Vibrating for 5 to 10 minutes can meet the condition of even distribution of the phosphor in the neutron-sensitive mixed liquid. Stopping for 5 to 10 minutes can save power. Continuing to vibrate after stopping can effectively ensure intermittent vibration of the neutron-sensitive mixed liquid, thereby ensuring the uniformity of the phosphor distribution on the basis of saving power.
[0050] Through the above steps S102 to S110, the purpose of replacing manual labor by using the circulating peristaltic pump 4 to control the neutron sensitive mixed liquid to fill the glass capillary array 3 in the forward or reverse direction can be achieved, thereby achieving the technical effect of reducing labor costs and making the filling more uniform, and further solving the technical problems of increased labor costs and uneven filling due to manual filling of phosphors into the glass capillary array 3.
[0051] The embodiment of the present invention also provides a device for preparing a pixelated neutron-sensitive scintillation screen. It should be noted that the device for preparing a pixelated neutron-sensitive scintillation screen in the embodiment of the present invention can be used to execute the method for preparing a pixelated neutron-sensitive scintillation screen provided in the embodiment of the present invention. The following is an introduction to the device for preparing a pixelated neutron-sensitive scintillation screen provided in the embodiment of the present invention. Figures 2 to 4 As shown:
[0052] Figure 2 A connection diagram of a device for preparing a pixelated neutron-sensitive scintillation screen provided in an embodiment of the present invention, such as Figure 2 As shown, a preparation device for a pixelated neutron-sensitive scintillation screen provided by the present embodiment includes a container 1, a pipeline assembly 2, a glass capillary array 3 and a circulating peristaltic pump 4; the container 1 is used to hold a neutron-sensitive mixed liquid; the pipeline assembly 2 is connected to the container 1 at one end and to the glass capillary array 3 at the other end, and transports the neutron-sensitive mixed liquid to move between the container 1 and the glass capillary array 3; the circulating peristaltic pump 4 is arranged on the pipeline assembly 2, and drives the neutron-sensitive mixed liquid to circulate between the container 1 and the glass capillary array 3; the circulating peristaltic pump 4 includes a forward rotor and a reverse rotor, the forward rotor is used to drive the neutron-sensitive mixed liquid to move from the container 1 to the glass capillary array 3, and the reverse rotor is used to drive the neutron-sensitive mixed liquid to move from the glass capillary array 3 to the container 1.
[0053] By adopting the above structure, part of the neutron-sensitive mixed liquid in the container 1 is transported to the glass capillary array 3 through the pipeline assembly 2, and a pixelated neutron-sensitive scintillation screen can be obtained. Since manual dripping is difficult and causes uneven dripping, a circulating peristaltic pump 4 can be set to suck the neutron-sensitive mixed liquid into the pipeline assembly 2, and part of the neutron-sensitive mixed liquid in the container 1 is transported to the glass capillary array 3 through the pipeline assembly 2. By effectively controlling the power of the circulating peristaltic pump 4, the amount of neutron-sensitive mixed liquid sucked can be controlled, so that the density of the phosphor in the glass capillary array 3 can be controlled, that is, when a high density is required, the power of the circulating peristaltic pump 4 can be controlled to increase, and when a low density is required, the power of the circulating peristaltic pump 4 can be controlled to decrease. By adjusting the density of the phosphor, when part of the glass capillary array 3 is in an uneven state, the power of the circulating peristaltic pump 4 can be reduced, so that a small amount of phosphor fills the glass capillary array 3, so that the uneven parts in the glass capillary array 3 are filled, and the uniformity of the neutron-sensitive mixed liquid is effectively controlled.
[0054] In addition, in order to ensure the uniformity of the neutron-sensitive mixed liquid in the glass capillary array 3, the neutron-sensitive mixed liquid needs to flow through the glass capillary array 3 in the forward direction and then flow through the glass capillary array 3 in the reverse direction. Specifically, when flowing through the glass capillary array 3 in the forward direction, the density of the phosphor retained at the entrance end may be greater than the density of the phosphor retained at the exit end, so it is reversely flowed once again to make the exit end become the entrance end, so that the neutron-sensitive mixed liquid flows through the glass capillary array 3 twice, effectively improving the uniformity of the phosphor in the glass capillary array 3, and a higher quality pixelated neutron-sensitive scintillation screen can be obtained.
[0055] In order to ensure that the neutron-sensitive mixed liquid completely flows through the glass capillary array 3 and ensure that enough fluorescent powder in the neutron-sensitive mixed liquid remains in the glass capillary array 3, the forward rotor of the circulating peristaltic pump 4 drives the circulating peristaltic pump 4 to rotate forward, and the specific forward rotation time is adjusted to 10 to 20 minutes. After 10 to 20 minutes, the extraction direction of the circulating peristaltic pump 4 is reversed, that is, the reverse rotor of the circulating peristaltic pump 4 drives the circulating peristaltic pump 4 to rotate reversely, and the direction of rotation of the internal shaft wheel of the circulating peristaltic pump 4 is reversed, thereby realizing reverse absorption of the neutron-sensitive mixed liquid, and then continuing for 10 to 20 minutes. At this time, the uniformity of the pixelated neutron-sensitive scintillation screen obtained is relatively high and meets the use standards.
[0056] Through the above-mentioned method, the technical problems of increased labor cost and uneven filling caused by manually filling the glass capillary array 3 with phosphors are solved.
[0057] like Figure 2 As shown, the pipeline assembly 2 includes a first pipeline 201 and a second pipeline 202; the first pipeline 201 is connected to the container 1 at one end and to the glass capillary array 3 at the other end; the second pipeline 202 is connected to the glass capillary array 3 at one end and to the container 1 at the other end; the forward rotor is used to drive the neutron-sensitive mixed liquid to circulate along the direction from the container 1 to the first pipeline 201, the glass capillary array 3, the second pipeline 202, and the container 1; the reverse rotor is used to drive the neutron-sensitive mixed liquid to circulate along the direction from the container 1 to the second pipeline 202, the glass capillary array 3, the first pipeline 201, and the container 1.
[0058] With the above structure, the first pipe 201 and the second pipe 202 are both connected to the glass capillary array 3, and are respectively installed at the two ends of the glass capillary array 3. In the above manner, the preparation device forms a ring, that is, the neutron-sensitive mixed liquid passes through the first pipe 201, the glass capillary array 3, the second pipe 202 from the container 1, and finally flows into the container 1. The circulating peristaltic pump 4 only needs to work continuously, and the neutron-sensitive mixed liquid in the container 1 can circulate. By adjusting the working direction of the circulating peristaltic pump 4, that is, adjusting the forward rotor to work or the reverse rotor to work, the neutron-sensitive mixed liquid can pass through the glass capillary array 3 in the forward direction or in the reverse direction. It effectively realizes that the machine replaces manual filling, and the forward filling is realized by the circulating peristaltic pump 4 and then the reverse filling is performed, which can be realized without manually turning over the glass capillary array 3, thereby reducing labor costs.
[0059] like Figure 3 As shown, Figure 3 A schematic diagram of a support frame 5 in a device for preparing a pixelated neutron-sensitive scintillation screen provided in an embodiment of the present invention, the preparation device also includes: a support frame 5, which is provided with a plurality of holes 501 for the glass capillary array 3 to pass through, and is used to fix and support the glass capillary array 3; the holes 501 are evenly arranged in the horizontal direction.
[0060] With the above structure, the glass capillary array 3 is an array composed of a plurality of glass capillaries. To ensure that the plurality of glass capillaries are arranged in a regular pattern, a support frame 5 can be used to pass the plurality of glass capillaries through the hole 501, thereby forming the glass capillary array 3. In addition, the glass capillary array 3 is arranged in an orderly manner, so that the phosphor can be filled more evenly.
[0061] like Figure 2 As shown, the preparation device also includes: a suction filter guard plate 6, a support frame 5 fixedly installed inside, a semi-closed arrangement, and an opening connected to the pipeline assembly 2 is arranged along the direction passing through the hole 501.
[0062] With the above structure, the suction filter plate 6 is installed on the outside of the support frame 5, that is, the glass capillary array 3 is fixedly arranged inside the suction filter plate 6, and the suction filter plate 6 is in a semi-closed state, and is only arranged in the opening connected to the pipeline assembly 2 along the direction passing through the hole 501, that is, one end opening of the suction filter plate 6 is connected to the first pipeline 201, and the other end opening is connected to the second pipeline 202, and the remaining positions are closed, so that when the neutron-sensitive mixed liquid extracted by the first pipeline 201 flows into the glass capillary array 3, if there is a phenomenon of outflow, it can flow into the suction filter plate 6, and will not flow to other positions due to the obstruction of the suction filter plate 6. Then, the second pipeline 202 delivers part of the neutron-sensitive mixed liquid retained in the glass capillary array 3 and the suction filter plate 6 to the container 1. It effectively achieves that the raw materials of the neutron-sensitive mixed liquid are not wasted, and the neutron-sensitive mixed liquid will not flow to other places to pollute the surrounding environment.
[0063] like Figure 4 As shown, Figure 4 A schematic diagram of a filtration guard plate 6 in a preparation device for a pixelated neutron-sensitive scintillation screen provided in an embodiment of the present invention, the preparation device also includes: a fixing ring 7; the filtration guard plate 6 includes a first guard plate 601 and a second guard plate 602, the first guard plate 601 and the second guard plate 602 are symmetrically arranged along the cross-sectional direction of the hole 501; a first protrusion 9 is arranged on the first guard plate 601, and a second protrusion 10 is arranged on the second guard plate 602; a fixing ring 7, which sleeves the first protrusion 9 and the second protrusion 10 together.
[0064] With the above structure, in order to facilitate the placement and removal of the glass capillary array 3 from the suction filtration guard plate 6, the suction filtration guard plate 6 is provided as a detachable first guard plate 601 and a second guard plate 602, the support frame 5 is provided between the first guard plate 601 and the second guard plate 602, and the two guard plates (the first guard plate 601 and the second guard plate 602) are completely symmetrical based on the support frame 5. The first guard plate 601 and the second guard plate 602 can be effectively separated to remove the glass capillary array 3.
[0065] In addition, since the first guard plate 601 and the second guard plate 602 are two parts, in order to ensure that the filtration guard plate 6 forms a semi-closed state, the first guard plate 601 and the second guard plate 602 need to be tightly fixed together, so protrusions (first protrusion 9 and second protrusion 10) are set on the first guard plate 601 and the second guard plate 602, and the two protrusions are completely symmetrically arranged. By setting the fixing ring 7, the first protrusion 9 and the second protrusion 10 are sleeved together, which effectively realizes the fixation of the first guard plate 601 and the second guard plate 602, thereby realizing the semi-closed state of the filtration guard plate 6.
[0066] like Figure 2 As shown, the preparation device further includes: a vibrator 8 , which is in contact with the container 1 and is used to vibrate the neutron-sensitive mixed liquid in the container 1 .
[0067] With the above structure, since the container 1 contains the neutron-sensitive mixed liquid, in order to achieve uniform mixing of the phosphor in the neutron-sensitive mixed liquid and effectively ensure the uniformity when it is subsequently filled into the glass capillary array 3, a vibrator 8 can be set to continuously vibrate the container 1 so that the neutron-sensitive mixed liquid is continuously in a shaking and evenly mixed state.
[0068] The vibration of the vibrator 8 can ensure that the phosphor in the neutron-sensitive mixed liquid is evenly distributed, but continuous vibration leads to a waste of power. Vibrating for 5 to 10 minutes can meet the condition of even distribution of the phosphor in the neutron-sensitive mixed liquid. Stopping for 5 to 10 minutes can save power. Continuing to vibrate after stopping can effectively ensure intermittent vibration of the neutron-sensitive mixed liquid, thereby ensuring the uniformity of the phosphor distribution on the basis of saving power.
[0069] The following beneficial effects are achieved by using the above-mentioned device for preparing a pixelated neutron-sensitive scintillation screen:
[0070] (1) The purpose of controlling the neutron-sensitive mixed liquid to fill the glass capillary array 3 in the forward or reverse direction by replacing manual labor with the circulating peristaltic pump 4 can be achieved, thereby achieving the technical effect of reducing labor costs and making the filling more uniform, thereby solving the technical problems of increased labor costs and uneven filling caused by manually filling the glass capillary array 3 with phosphors;
[0071] (2) When a part of the glass capillary array 3 is uneven, the power of the circulating peristaltic pump 4 can be reduced, and a small amount of phosphor can be filled into the glass capillary array 3 by adjusting the density of the phosphor, so that the uneven parts in the glass capillary array 3 are filled, thereby effectively achieving the effect of controlling the uniformity of the neutron sensitive mixed solution;
[0072] (3) Vibrating for 5 to 10 minutes can satisfy the condition of uniform distribution of phosphor in the neutron sensitive mixed solution. Stopping for 5 to 10 minutes can save electricity. Continuing to vibrate after stopping can effectively ensure the intermittent vibration of the neutron sensitive mixed solution, thereby ensuring the uniform distribution of phosphor on the basis of saving electricity.
[0073] Based on the above embodiments and optional embodiments, the present invention proposes an optional implementation mode: Figure 5 is a flow chart of an optional method for preparing a pixelated neutron-sensitive scintillation screen according to an embodiment of the present invention, such as Figure 5 As shown, the method includes:
[0074] Step S201, preparing a mixture of neutron-sensitive scintillation powder (phosphor) and a volatile organic solvent (neutron-sensitive mixed solution), wherein the neutron-sensitive scintillation powder may be GOS:Tb (gadolinium oxysulfide) with a particle size of 100 nanometers, 10B / ZnS:Tb (mixed powder of 10 boron and zinc sulfide powder), and the volatile organic solvent may be alcohol, acetone, isopropyl alcohol, etc.;
[0075] Step S202, placing the neutron sensitive mixed solution in a beaker and placing it in an ultrasonic cleaning machine (vibrator 8), and starting ultrasound for 5 to 10 minutes;
[0076] Step S203, fix the glass capillary array 3 between the suction filtration guard plates 6 (the first guard plate 601 and the second guard plate 602), and fix it with a fixing ring 7;
[0077] Step S204, two rubber hoses (the first pipe 201 and the second pipe 202) are connected to the first protective plate 601 and the second protective plate 602 respectively, and the other ends are placed in the neutron sensitive mixed liquid;
[0078] Step S205, fixing a circulating peristaltic pump 4 (peristaltic pump) on one of the pipelines of the pipeline assembly 2;
[0079] Step S206, setting the working mode of the circulating peristaltic pump 4 to the circulating mode, and the time is set to 10 to 20 minutes;
[0080] Step S207, turning on the circulating peristaltic pump 4, and obtaining a high-resolution pixelated neutron-sensitive scintillation screen after the working time is over.
[0081] Through the above steps S201 to S207, the purpose of replacing manual labor by using the circulating peristaltic pump 4 to control the neutron sensitive mixed liquid to fill the glass capillary array 3 in the forward or reverse direction can be achieved, thereby achieving the technical effect of reducing labor costs and making the filling more uniform, and further solving the technical problems of increased labor costs and uneven filling due to manual filling of phosphors into the glass capillary array 3.
[0082] In this embodiment, a device corresponding to the method for preparing a pixelated neutron-sensitive scintillation screen is also provided, and the device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the terms "module" and "device" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.
[0083] According to an embodiment of the present invention, there is also provided an embodiment of a device for implementing the above-mentioned method for preparing a pixelated neutron-sensitive scintillation screen. Figure 6is a structural schematic diagram of a device corresponding to a method for preparing a pixelated neutron-sensitive scintillation screen according to an embodiment of the present invention, such as Figure 6 As shown, the device corresponding to the method for preparing the pixelated neutron-sensitive scintillation screen comprises: a preparation module 301, a placement module 302, a connection module 303, a start module 304 and a result module 305, wherein:
[0084] Preparation module 301, used for preparing neutron sensitive mixed solution;
[0085] The placement module 302 is connected to the preparation module 301 and is used to place the neutron sensitive mixed liquid in the container 1;
[0086] The connection module 303 is connected to the placement module 302 and is used to connect the container 1 to the glass capillary array 3 through the circulating peristaltic pump 4, wherein the circulating peristaltic pump 4 is used to absorb the neutron-sensitive mixed liquid in the container 1 and transfer it to the glass capillary array 3, and the glass capillary array 3 is used to support the pixelated neutron-sensitive scintillation screen and fill the pixelated neutron-sensitive scintillation screen with the neutron-sensitive mixed liquid;
[0087] The starting module 304 is connected to the connecting module 303 and is used to start the circulating peristaltic pump 4 within a preset first working time, wherein the circulating peristaltic pump 4 can draw the neutron sensitive mixed liquid to flow through the glass capillary array 3 in a forward direction, and can also draw the neutron sensitive mixed liquid to flow through the glass capillary array 3 in a reverse direction;
[0088] The achievement module 305 is connected to the start module 304 and is used to take out the glass capillary array 3 after the first working time is reached to obtain a pixelated neutron-sensitive scintillation screen.
[0089] It should be noted that the above modules can be implemented by software or hardware. For example, for the latter, it can be implemented in the following ways: the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.
[0090] It should be noted that the preparation module 301, placement module 302, connection module 303, start module 304 and achievement module 305 correspond to steps S102 to S110 in the embodiment, and the examples and application scenarios implemented by the modules and the corresponding steps are the same, but are not limited to the contents disclosed in the above embodiment. It should be noted that the modules as part of the device can be run in a computer terminal.
[0091] It should be noted that the optional or preferred implementation of this embodiment can refer to the relevant description in the embodiment, which will not be repeated here.
[0092] The corresponding device of the above-mentioned method for preparing a pixelated neutron-sensitive scintillation screen may also include a processor and a memory. The above-mentioned preparation module 301, placement module 302, connection module 303, startup module 304 and achievement module 305 are all stored in the memory as program modules, and the processor executes the above-mentioned program modules stored in the memory to realize corresponding functions.
[0093] The processor includes a kernel, which retrieves the corresponding program module from the memory. The kernel may be one or more. The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. The memory includes at least one memory chip.
[0094] According to an embodiment of the present application, an embodiment of a non-volatile storage medium is also provided. Optionally, in this embodiment, the non-volatile storage medium includes a stored program, wherein when the program is executed, the device where the non-volatile storage medium is located is controlled to execute any one of the methods for preparing a pixelated neutron-sensitive scintillation screen.
[0095] Optionally, in this embodiment, the non-volatile storage medium may be located in any computer terminal in a computer terminal group in a computer network, or in any mobile terminal in a mobile terminal group, and the non-volatile storage medium includes a stored program.
[0096] Optionally, when the program is running, the device where the non-volatile storage medium is located is controlled to perform the following functions: prepare a neutron-sensitive mixed liquid; place the neutron-sensitive mixed liquid in a container 1; connect the container 1 to the glass capillary array 3 through a circulating peristaltic pump 4, wherein the circulating peristaltic pump 4 is used to absorb the neutron-sensitive mixed liquid in the container 1 and transfer it to the glass capillary array 3, the glass capillary array 3 is used to support a pixelated neutron-sensitive scintillation screen and fill the pixelated neutron-sensitive scintillation screen with the neutron-sensitive mixed liquid; within a preset first working time, start the circulating peristaltic pump 4, wherein the circulating peristaltic pump 4 can absorb the neutron-sensitive mixed liquid to flow through the glass capillary array 3 in a forward direction, and can also absorb the neutron-sensitive mixed liquid to flow through the glass capillary array 3 in a reverse direction; after the first working time is reached, take out the glass capillary array 3 to obtain a pixelated neutron-sensitive scintillation screen.
[0097] According to an embodiment of the present application, an embodiment of a processor is also provided. Optionally, in this embodiment, the processor is used to run a program, wherein when the program is run, any one of the methods for preparing a pixelated neutron-sensitive scintillation screen is executed.
[0098] According to an embodiment of the present application, an embodiment of a computer program product is also provided. Optionally, in this embodiment, the computer program product includes a computer program, which, when executed by a processor, implements any of the steps of the method for preparing a pixelated neutron-sensitive scintillator screen.
[0099] Optionally, the above-mentioned computer program product, when executed on a data processing device, is suitable for executing an initialization program having the following method steps: preparing a neutron-sensitive mixed liquid; placing the neutron-sensitive mixed liquid in a container 1; connecting the container 1 to the glass capillary array 3 via a circulating peristaltic pump 4, wherein the circulating peristaltic pump 4 is used to absorb the neutron-sensitive mixed liquid in the container 1 and transfer it to the glass capillary array 3, the glass capillary array 3 is used to support a pixelated neutron-sensitive scintillation screen and fill the pixelated neutron-sensitive scintillation screen with the neutron-sensitive mixed liquid; within a preset first working time, starting the circulating peristaltic pump 4, wherein the circulating peristaltic pump 4 can absorb the neutron-sensitive mixed liquid to flow through the glass capillary array 3 in a forward direction, and can also absorb the neutron-sensitive mixed liquid to flow through the glass capillary array 3 in a reverse direction; after the first working time is reached, taking out the glass capillary array 3 to obtain a pixelated neutron-sensitive scintillation screen.
[0100] An embodiment of the present invention provides an electronic device, which includes a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are implemented: preparing a neutron-sensitive mixed liquid; placing the neutron-sensitive mixed liquid in a container 1; connecting the container 1 to a glass capillary array 3 via a circulating peristaltic pump 4, wherein the circulating peristaltic pump 4 is used to absorb the neutron-sensitive mixed liquid in the container 1 and transmit it to the glass capillary array 3, the glass capillary array 3 is used to support a pixelated neutron-sensitive scintillation screen and fill the pixelated neutron-sensitive scintillation screen with the neutron-sensitive mixed liquid; within a preset first working time, starting the circulating peristaltic pump 4, wherein the circulating peristaltic pump 4 can absorb the neutron-sensitive mixed liquid to flow through the glass capillary array 3 in a forward direction, or can absorb the neutron-sensitive mixed liquid to flow through the glass capillary array 3 in a reverse direction; after the first working time is reached, taking out the glass capillary array 3 to obtain a pixelated neutron-sensitive scintillation screen.
[0101] The above sequence of the embodiments of the present invention is for description only and does not represent the superiority or inferiority of the embodiments.
[0102] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0103] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the above modules can be a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, modules or indirect coupling or communication connection of modules, which can be electrical or other forms.
[0104] The modules described above as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment.
[0105] In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of software functional modules.
[0106] If the above-mentioned integrated module is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable non-volatile storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a non-volatile storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the various embodiments of the present invention. The aforementioned non-volatile storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.
[0107] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A method for preparing a pixelated neutron-sensitive scintillation screen, characterized in that: include: preparing a neutron sensitive mixed solution; Placing the neutron sensitive mixed liquid in a container (1); The container (1) is connected to the glass capillary array (3) via a circulating peristaltic pump (4), wherein the circulating peristaltic pump (4) is used to absorb the neutron-sensitive mixed liquid in the container (1) and transfer it to the glass capillary array (3), and the glass capillary array (3) is used to support the pixelated neutron-sensitive scintillation screen and fill the pixelated neutron-sensitive scintillation screen with the neutron-sensitive mixed liquid; The circulating peristaltic pump (4) is started within a preset first working time, wherein the circulating peristaltic pump (4) can draw the neutron-sensitive mixed liquid to flow through the glass capillary array (3) in a forward direction, or can draw the neutron-sensitive mixed liquid to flow through the glass capillary array (3) in a reverse direction; After the first working time is reached, the glass capillary array (3) is taken out to obtain the pixelated neutron-sensitive scintillation screen.
2. The method according to claim 1, characterized in that The method for preparing the neutron sensitive mixed solution comprises: Mixing gadolinium oxysulfide, 10 boron and zinc sulfide powders with a particle size of 100 nanometers to obtain phosphor; The phosphor is dissolved in a volatile organic solvent to obtain a neutron-sensitive mixed solution.
3. The method according to claim 1, characterized in that: Before starting the circulating peristaltic pump (4) within the preset first working time, the method further comprises: The container (1) is continuously vibrated within a preset second working time.
4. The method according to claim 3, characterized in that include: The first working time is 10 to 20 minutes; The second working time is 5 to 10 minutes.
5. A device for preparing a pixelated neutron-sensitive scintillation screen, characterized in that: include: A container (1), a pipe assembly (2), a glass capillary array (3) and a circulating peristaltic pump (4), for executing a method for preparing a pixelated neutron-sensitive scintillation screen as claimed in any one of claims 1 to 4; The container (1) is used to contain the neutron-sensitive mixed liquid; The pipeline assembly (2) is connected to the container (1) at one end and to the glass capillary array (3) at the other end, and is used to transport the neutron sensitive mixed liquid between the container (1) and the glass capillary array (3); The circulating peristaltic pump (4) is arranged on the pipeline assembly (2) and drives the neutron sensitive mixed liquid to circulate between the container (1) and the glass capillary array (3); The circulating peristaltic pump (4) comprises a forward rotor and a reverse rotor, wherein the forward rotor is used to drive the neutron-sensitive mixed liquid to move along the direction from the container (1) to the glass capillary array (3), and the reverse rotor is used to drive the neutron-sensitive mixed liquid to move along the direction from the glass capillary array (3) to the container (1).
6. The device for preparing a pixelated neutron-sensitive scintillation screen according to claim 5, characterized in that: The pipeline assembly (2) comprises a first pipeline (201) and a second pipeline (202); The first pipe (201) has one end connected to the container (1) and the other end connected to the glass capillary array (3); The second pipe (202) has one end connected to the glass capillary array (3) and the other end connected to the container (1); The forward rotor is used to drive the neutron-sensitive mixed liquid to circulate along the direction from the container (1) to the first pipeline (201), the glass capillary array (3), the second pipeline (202), and the container (1); The reverse rotor is used to drive the neutron-sensitive mixed liquid to circulate along the direction from the container (1) to the second pipeline (202), the glass capillary array (3), the first pipeline (201), and the container (1).
7. The device for preparing a pixelated neutron-sensitive scintillation screen according to claim 5, characterized in that: Also includes: A support frame (5) provided with a plurality of holes (501) for the glass capillary array (3) to pass through, and used for fixing and supporting the glass capillary array (3); The holes (501) are evenly arranged in the horizontal direction.
8. The device for preparing a pixelated neutron-sensitive scintillation screen according to claim 7, characterized in that: Also includes: The filter guard plate (6) is fixedly installed inside the support frame (5) and is semi-enclosed. An opening connected to the pipeline assembly (2) is provided along the direction passing through the hole (501).
9. The device for preparing a pixelated neutron-sensitive scintillation screen according to claim 8, characterized in that: Also includes: Fixed ring (7); The suction filtration guard plate (6) comprises a first guard plate (601) and a second guard plate (602), wherein the first guard plate (601) and the second guard plate (602) are symmetrically arranged along the cross-sectional direction of the hole (501); The first guard plate (601) is provided with a first protrusion (9), and the second guard plate (602) is provided with a second protrusion (10); The fixing ring (7) sleeves the first protrusion (9) and the second protrusion (10) together.
10. The device for preparing a pixelated neutron-sensitive scintillation screen according to claim 5, characterized in that: Also includes: A vibrator (8) is in contact with the container (1) and is used to vibrate the neutron-sensitive mixed liquid in the container (1).