Method and device for predicting high-energy heavy ion flux based on ground cosmic ray intensity

Abstract

The present application discloses a method and device for predicting the flux of high-energy heavy ions based on the ground cosmic ray intensity. The method includes: obtaining the current ground cosmic ray intensity; determining the target conversion coefficient corresponding to the target high-energy heavy ion with the target nuclear charge number in the target energy channel according to the first corresponding relationship between the nuclear charge number, energy channel and conversion coefficient of the high-energy heavy ion; calculating the target logarithmic flux of the target high-energy heavy ion in the target energy channel at the current ground cosmic ray intensity according to the current ground cosmic ray intensity, the predetermined target ground cosmic ray intensity, the predetermined first logarithmic flux of the target high-energy heavy ion in the target energy channel at the target ground cosmic ray intensity, and the target conversion coefficient; performing logarithmic conversion on the target logarithmic flux to obtain the target flux of the target high-energy heavy ion in the target energy channel. The present application can more accurately predict the flux of high-energy heavy ions with a variety of different nuclear charge numbers in a variety of different energy channels based on the current ground cosmic ray intensity.

Description

Technical Field

[0001] The present application relates to the field of space exploration technology, and in particular to a method, device, electronic device, computer-readable storage medium and computer program product for predicting high-energy heavy ion flux based on ground cosmic ray intensity. Background Art

[0002] High-energy heavy ions are an important factor leading to single-particle events on satellites in orbit, posing a serious threat to the safety of satellites. Single-particle upset events, which are of widespread concern in the international aerospace community, have been confirmed to be caused by high-energy charged particles bombarding microelectronic devices to produce high-density ionization, changing the original logical state. This "soft error" can cause erroneous information and abnormal system operation. If certain key parts of the microelectronic system are hit by particles, it may also cause lock-up, affecting the normal operation of the spacecraft. Studies have shown that since the charge and mass of high-energy heavy ions are much higher than those of elements such as hydrogen and helium, a large part of these anomalies are caused by high-energy heavy ions, also collectively referred to as single-particle events. In addition, due to manned lunar landings and future plans for Mars immigration, the radiation effects formed by high-energy heavy ions will pose a threat to the health and even life of astronauts. Therefore, it is imperative to accurately estimate the energy spectrum of high-energy heavy ions in space.

[0003] In fact, due to the low flux of high-energy heavy ions, early detections were mostly obtained through balloon detection, which lacked continuity and could not measure the energy of particles and obtain energy spectra. In the late 1970s, satellite observations obtained detection data of high-energy heavy ions, but most of these satellites were in low orbits and could not overcome the influence of the geomagnetic field on the energy spectrum of high-energy heavy ions. In addition, the satellites had insufficient lifespans and could not accurately reflect the influence of solar activity modulation on high-energy heavy ions.

[0004] Some exploration satellites launched at the end of the last century have achieved relatively comprehensive continuous monitoring of outer space. First, these exploration satellites can detect 5-26 types of high-energy heavy ions, covering most of the high-energy heavy ions that can affect satellite safety, and have detected elements with different charge numbers. Secondly, these exploration satellites can detect high-energy heavy ions with energies of 100-500MeV / n, which is the range where high-energy particles have the most serious impact on satellite microelectronic devices. In addition, these exploration satellites are usually located at the Lagrange point (L1 point) on the straight line between the earth and the sun, and are completely unaffected by the geomagnetic field. Most importantly, continuous monitoring can be achieved. Therefore, the monitoring data of high-energy heavy ions from these exploration satellites are important reference indicators for calculating the high-energy heavy ion environment in satellite orbit.

[0005] Although there are many research works trying to establish a model that can describe the changes in high-energy heavy ion flux, most of the models' data come from different observation data sources, and there are disputes over data integration, insufficient data duration, and other defects. After comparison with existing satellite data, there are also large errors. The radiation safety of satellites requires an accurate high-energy heavy ion environment, especially manned lunar landings, Mars exploration, and other environments directly exposed to the influence of heavy ions. Therefore, the heavy ion environment model based on long-term continuous observation data is more valuable for reference in radiation protection during deep space exploration.

[0006] In summary, high-energy heavy ions pose a serious threat to satellite safety, and an accurate high-energy heavy ion environment is urgently needed. However, the existing detection and high-energy heavy ion distribution methods or models cannot provide accurate relatively dynamic high-energy heavy ion environment data. Therefore, it is urgent to develop a method or model for high-energy heavy ions modulated by solar activity in the outer magnetosphere to meet the environmental effect assessment needs of space missions. Summary of the invention

[0007] In view of this, embodiments of the present application provide a method, device, electronic device, computer-readable storage medium and computer program product for predicting high-energy heavy ion flux based on ground cosmic ray intensity, which are used to solve at least one of the above-mentioned technical problems.

[0008] In a first aspect, an embodiment of the present application provides a method for predicting high-energy heavy ion flux based on ground cosmic ray intensity, comprising:

[0009] Get the current ground cosmic ray intensity, which is the average of the ground cosmic ray intensity in the current time period or the average of the ground cosmic ray intensity in multiple time periods including the current time period;

[0010] Determining a target conversion coefficient corresponding to a target high-energy heavy ion with a target nuclear charge number in a target energy channel according to a first correspondence relationship among a predetermined nuclear charge number, an energy channel, and a conversion coefficient of the high-energy heavy ion;

[0011] Calculate the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity according to the current ground cosmic ray intensity, the predetermined target ground cosmic ray intensity, the predetermined first logarithmic flux of the target high-energy heavy ions in the target energy channel at the target ground cosmic ray intensity, and the target conversion coefficient; wherein the target ground cosmic ray intensity is the critical ground cosmic ray intensity between the first ground cosmic ray intensity interval and the second ground cosmic ray intensity interval, the ground cosmic ray intensity in the first ground cosmic ray intensity interval and the corresponding logarithmic flux are in a first linear relationship, and the ground cosmic ray intensity in the second ground cosmic ray intensity interval and the corresponding logarithmic flux are in a second linear relationship;

[0012] The target logarithmic flux is logarithmically transformed to obtain the target flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity.

[0013] According to some embodiments of the present application, optionally, before calculating the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity, the method for predicting the high-energy heavy ion flux based on the ground cosmic ray intensity also includes: obtaining the logarithmic flux of the target high-energy heavy ions in the target energy channel at multiple ground cosmic ray intensities by detection; determining a first linear relationship based on the logarithmic flux corresponding to a part of the multiple ground cosmic ray intensities and the corresponding logarithmic flux, and determining a second linear relationship based on the logarithmic flux corresponding to another part of the multiple ground cosmic ray intensities and the corresponding logarithmic flux; taking the interval in which the ground cosmic ray intensity and the corresponding logarithmic flux present a first linear relationship as the first ground cosmic ray intensity interval, and taking the interval in which the ground cosmic ray intensity and the corresponding logarithmic flux present a second linear relationship as the second ground cosmic ray intensity interval; taking the critical ground cosmic ray intensity between the first ground cosmic ray intensity interval and the second ground cosmic ray intensity interval as the target ground cosmic ray intensity, wherein any one of the ground cosmic ray intensities in the first ground cosmic ray intensity interval is less than the critical ground cosmic ray intensity, and any one of the ground cosmic ray intensities in the second ground cosmic ray intensity interval is greater than or equal to the critical ground cosmic ray intensity.

[0014] According to some embodiments of the present application, optionally, based on a predetermined first correspondence between the nuclear charge number, energy channel and conversion coefficient of the high-energy heavy ions, a target conversion coefficient corresponding to the target high-energy heavy ions with the target nuclear charge number in the target energy channel is determined, including: when the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, based on the first correspondence, a first target conversion coefficient corresponding to the target high-energy heavy ions with the target nuclear charge number in the target energy channel is obtained, wherein the first target conversion coefficient in the first correspondence is obtained based on a predetermined first linear relationship; when the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, based on the first correspondence, a second target conversion coefficient corresponding to the target high-energy heavy ions with the target nuclear charge number in the target energy channel is obtained, wherein the second target conversion coefficient in the first correspondence is obtained based on a predetermined second linear relationship; wherein the target conversion coefficient is the first target conversion coefficient or the second target conversion coefficient.

[0015] According to some embodiments of the present application, optionally, based on the current ground cosmic ray intensity, the predetermined target ground cosmic ray intensity, the predetermined first logarithmic flux of the target high-energy heavy ions in the target energy channel at the target ground cosmic ray intensity, and the target conversion coefficient, the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity is calculated, including: when the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, calculating the first difference between the target ground cosmic ray intensity and the current ground cosmic ray intensity, calculating the first product of the first difference and the first target conversion coefficient, calculating the second difference between the first logarithmic flux and the first product, and obtaining the target logarithmic flux; when the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, calculating the third difference between the current ground cosmic ray intensity and the target ground cosmic ray intensity, calculating the second product of the third difference and the second target conversion coefficient, calculating the sum of the first logarithmic flux and the second product, and obtaining the target logarithmic flux.

[0016] According to some embodiments of the present application, optionally, after calculating the target logarithmic flux of target high-energy heavy ions in a target energy channel at the current ground cosmic ray intensity, the method for predicting the high-energy heavy ion flux based on the ground cosmic ray intensity also includes: calculating the error range of the target logarithmic flux based on the target logarithmic flux and preset error parameters; performing a logarithmic conversion on the error range of the target logarithmic flux to obtain the error range of the target flux of the target high-energy heavy ions in the target energy channel.

[0017] According to some embodiments of the present application, optionally, an error range of the target logarithmic flux is calculated based on the target logarithmic flux and a preset error parameter, including: when the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, the preset error parameter is a first error parameter, and the product of the target logarithmic flux and the first error parameter is calculated to obtain the error range of the target logarithmic flux; when the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, the preset error parameter is a second error parameter, and the product of the target logarithmic flux and the second error parameter is calculated to obtain the error range of the target logarithmic flux; wherein the first error parameter is different from the second error parameter.

[0018] According to some embodiments of the present application, optionally, after obtaining the target flux of target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity, the method for predicting the high-energy heavy ion flux based on the ground cosmic ray intensity also includes: obtaining the actual flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity through satellite detection; calculating the relative error between the target flux and the actual flux; when the relative error is greater than a preset error threshold, adjusting the target conversion coefficient, and returning to the step of calculating the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity until the relative error is less than or equal to the preset error threshold.

[0019] In a second aspect, an embodiment of the present application provides a device for predicting high-energy heavy ion flux based on ground cosmic ray intensity, comprising:

[0020] An acquisition module is used to acquire the current ground cosmic ray intensity, where the current ground cosmic ray intensity is the average of the ground cosmic ray intensity in the current time period or the average of the ground cosmic ray intensity in multiple time periods including the current time period;

[0021] A determination module, for determining a target conversion coefficient corresponding to a target high-energy heavy ion having a target nuclear charge number in a target energy channel according to a predetermined first correspondence between the nuclear charge number, energy channel and conversion coefficient of the high-energy heavy ion;

[0022] A calculation module, for calculating a target logarithmic flux of target high-energy heavy ions in a target energy channel at the current ground cosmic ray intensity according to a current ground cosmic ray intensity, a predetermined target ground cosmic ray intensity, a predetermined first logarithmic flux of target high-energy heavy ions in a target energy channel at the target ground cosmic ray intensity, and a target conversion coefficient; wherein the target ground cosmic ray intensity is a critical ground cosmic ray intensity between a first ground cosmic ray intensity interval and a second ground cosmic ray intensity interval, the ground cosmic ray intensity in the first ground cosmic ray intensity interval and the corresponding logarithmic flux are in a first linear relationship, and the ground cosmic ray intensity in the second ground cosmic ray intensity interval and the corresponding logarithmic flux are in a second linear relationship;

[0023] The conversion module is used to perform logarithmic conversion on the target logarithmic flux to obtain the target flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity.

[0024] In a third aspect, an embodiment of the present application provides an electronic device comprising a processor and a memory storing computer program instructions; when the processor executes the computer program instructions, the steps of the method for predicting high-energy heavy ion flux based on the terrestrial cosmic ray intensity as described above are implemented.

[0025] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implement the steps of the method for predicting high-energy heavy ion flux based on ground cosmic ray intensity as described above.

[0026] In a fifth aspect, an embodiment of the present application provides a computer program product, which includes computer program instructions. When the computer program instructions are executed by a processor, the steps of the method for predicting high-energy heavy ion flux based on ground cosmic ray intensity as described above are implemented.

[0027] The method, device, electronic device, computer-readable storage medium and computer program product for predicting the flux of high-energy heavy ions based on the ground cosmic ray intensity provided by the embodiments of the present application can accurately predict the flux of high-energy heavy ions with multiple different nuclear charge numbers in multiple different energy channels based on the current ground cosmic ray intensity, and can provide important background parameters for the assessment of single particle events of on-orbit satellites. Moreover, even after the detection satellite fails, the flux of high-energy heavy ions with multiple different nuclear charge numbers in multiple different energy channels can continue to be obtained, which can provide timely protection for the radiation risk assessment of on-orbit satellites. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following briefly introduces the drawings in the embodiments of the present application.

[0029] Figure 1 The relationship between the ground cosmic ray intensity and the logarithmic flux of high-energy heavy ions is shown schematically.

[0030] Figure 2 A schematic flow chart of a method for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided in an embodiment of the present application.

[0031] Figure 3 A schematic flow chart of S202 in the method for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided in an embodiment of the present application.

[0032] Figure 4 A schematic flow chart of S203 in the method for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided in an embodiment of the present application.

[0033] Figure 5 A schematic diagram of the structure of a device for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided in an embodiment of the present application.

[0034] Figure 6 A schematic diagram of the hardware structure of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0037] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0038] It is obvious to those skilled in the art that various modifications and changes can be made in this application without departing from the spirit or scope of this application. Therefore, this application is intended to cover modifications and changes of this application that fall within the scope of the corresponding claims (technical solutions claimed for protection) and their equivalents. It should be noted that the implementation methods provided in the embodiments of this application can be combined with each other without contradiction.

[0039] Before describing the technical solutions provided by the embodiments of the present application, in order to facilitate the understanding of the embodiments of the present application, the present application first specifically describes the problems existing in the related art:

[0040] High-energy heavy ions pose a great threat to satellite safety and astronauts' health. Therefore, accurately predicting the high-energy heavy ion flux in space has become a top priority. However, existing high-energy heavy ion flux prediction methods are difficult to provide accurate relatively dynamic high-energy heavy ion environment data. In addition, the current high-energy heavy ion flux prediction mainly relies on detection satellites. However, after the detection satellite fails, the high-energy heavy ion flux will be difficult to predict.

[0041] In order to solve the technical problems of low prediction accuracy of high-energy heavy ion flux and / or difficulty in predicting high-energy heavy ion flux after failure of detection satellite, the embodiments of the present application provide a method, device, electronic device, computer-readable storage medium and computer program product for predicting high-energy heavy ion flux based on ground cosmic ray intensity, which can accurately predict the flux of high-energy heavy ions with multiple different nuclear charge numbers in multiple different energy channels based on the current ground cosmic ray intensity, and can provide important background parameters for the assessment of single particle events of on-orbit satellites. Moreover, even after the failure of the detection satellite, the flux of high-energy heavy ions with multiple different nuclear charge numbers in multiple different energy channels can continue to be obtained, which can provide timely protection for the radiation risk assessment of on-orbit satellites.

[0042] In order to solve the above technical problems, before proposing the technical solution of the present application, the present application first studies the relationship between the intensity of ground cosmic rays and the high-energy heavy ion flux in outer space.

[0043] During the study, the ground cosmic ray intensity observed by the ground cosmic ray monitoring station over a period of time was collected, and the high-energy heavy ion detection data detected by the detection satellite over a period of time was also collected. Based on the collected ground cosmic ray intensity and high-energy heavy ion detection data, the relationship between the ground cosmic ray intensity and the high-energy heavy ion flux was studied. The advantages of this method are: (1) The ground cosmic ray monitoring station has a long observation time and continuous data. The data of the ground cosmic ray monitoring station selected in this study has accumulated 6 solar activity cycles, and the data stability is good. (2) High-energy heavy ions require continuous space monitoring data, which needs to be able to accurately distinguish the nuclear charge number, and other factors, such as the geomagnetic field, need to be eliminated. The high-energy heavy ion detection data of the detection satellite selected in this study includes most elements with nuclear charge numbers of 5-26, and the energy of high-energy heavy ions is also in the main energy range that causes single particle events. The detection satellite operates between the sun and the earth, 1,500,000 kilometers away from the earth, is not affected by the geomagnetic field and the earth's atmosphere, and presents a primary ion state. Moreover, since 1997, two solar activity cycles have been experienced as of 2022, which can reflect the changes in high-energy heavy ions with the level of solar activity.

[0044] Figure 1 The relationship between the ground cosmic ray intensity and the high-energy heavy ion logarithmic flux is schematically shown. In order to better describe the relationship in the data, the high-energy heavy ion flux is converted into the high-energy heavy ion logarithmic flux, and the relationship between the ground cosmic ray intensity and the high-energy heavy ion logarithmic flux is studied. Figure 1 As shown, Figure 1 The logarithmic flux of boron with a nuclear charge number of 5 is given in 1998-2022, corresponding to the ground cosmic ray intensity at the same time. Figure 1It can be seen that: (1) the high-energy heavy ion logarithmic flux is positively correlated with the ground cosmic ray intensity, and the correlation is very good; (2) there is an inflection point at about 6250 ground cosmic ray intensity. On both sides of the inflection point, the ground cosmic ray intensity and the high-energy heavy ion logarithmic flux show a good linear relationship, and the rate of change on the left is greater than that on the right; (3) the linear deviation on the right side of the inflection point is greater than that on the left. Using this method, it has been found that the high-energy heavy particle logarithmic flux of other 5-26 elements and different energy ranges has similar corresponding characteristics with the ground cosmic ray intensity, but the characteristic parameters such as the inflection point of the ground cosmic ray intensity and the rate of change of the high-energy heavy ion flux are slightly different.

[0045] Through the correlation analysis of the logarithmic flux of various high-energy heavy ions detected by the detection satellite for 22 years and the ground cosmic ray intensity, it can be seen that since the changes in the ground cosmic ray intensity are caused by high-energy heavy ions, the two are positively correlated. Figure 1 It is obvious that there is an obvious linear relationship between the two. Therefore, the flux of high-energy heavy particles with nuclear charge numbers 5-26 at different energies (or different energy channels) can be calculated based on the latest ground cosmic ray intensity. The flux of high-energy heavy ions can be the number of high-energy heavy ions passing through a unit area per unit time.

[0046] In view of the above research findings, the embodiments of the present application provide a method, device, electronic device, computer-readable storage medium and computer program product for predicting high-energy heavy ion flux based on terrestrial cosmic ray intensity.

[0047] The following is an introduction to the method for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided in an embodiment of the present application.

[0048] Figure 2 A schematic flow chart of a method for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided in an embodiment of the present application. Figure 2 As shown, the method for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided in an embodiment of the present application may include the following steps S201 to S204.

[0049] S201: Obtain the current ground cosmic ray intensity.

[0050] Among them, the current ground cosmic ray intensity can be observed by the target ground cosmic ray monitoring station. The target ground cosmic ray monitoring station can be any one or more ground cosmic ray monitoring stations, and this application is not limited to this. A ground cosmic ray monitoring station is a device or facility for detecting and studying cosmic rays. Cosmic rays are high-energy particles from outer space, mainly including protons, electrons, and heavy ions. These particles collide with atoms in the atmosphere when passing through the earth's atmosphere, producing a series of secondary particles, which will reach the ground. Ground cosmic ray monitoring stations are usually equipped with various detectors, such as scintillation counters, bubble chambers, electron detectors, etc., which can monitor cosmic ray particles and secondary particles generated by their interactions. Through these monitoring data, scientists can study the source of cosmic rays, energy distribution, and their impact on the earth's atmosphere, climate, and life.

[0051] The current ground cosmic ray intensity may be the average ground cosmic ray intensity in the current time period, that is, the average ground cosmic ray intensity observed by the target ground cosmic ray monitoring station in the current time period. In order to improve the accuracy of predicting the high-energy heavy ion flux, the current ground cosmic ray intensity may also be the average ground cosmic ray intensity in multiple time periods including the current time period.

[0052] Taking the time period as one day as an example, the current time period may be the current day (or the current day). The current ground cosmic ray intensity may be the average ground cosmic ray intensity observed by the target ground cosmic ray monitoring station on the current day. In other embodiments, the current ground cosmic ray intensity may also be the average ground cosmic ray intensity observed by the target ground cosmic ray monitoring station on the current day and the n days before and after. For example, taking n=13 as an example, the current ground cosmic ray intensity may be the average ground cosmic ray intensity observed by the target ground cosmic ray monitoring station on the current day and the 13 days before and after, a total of 27 days of ground cosmic ray intensity average. The size of n can be flexibly adjusted according to actual conditions, and this application does not limit this.

[0053] S202: Determine a target conversion coefficient corresponding to a target high energy heavy ion with a target nuclear charge number in a target energy channel according to a predetermined first correspondence between the nuclear charge number, energy channel and conversion coefficient of the high energy heavy ion.

[0054] As mentioned above, on both sides of the ground cosmic ray intensity inflection point, the ground cosmic ray intensity and the high-energy heavy ion logarithmic flux are linearly related. By correlating the detection data of high-energy heavy ions with different nuclear charge numbers from the detection satellite in different energy channels with the ground cosmic ray intensity data of the same period, the first corresponding relationship between the nuclear charge number, energy channel and conversion coefficient of high-energy heavy ions can be obtained. This conversion coefficient can be the conversion coefficient between the ground cosmic ray intensity and the high-energy heavy ion logarithmic flux.

[0055] According to the first corresponding relationship, the target conversion coefficient of the target high-energy heavy ion with the target nuclear charge number in the target energy channel can be obtained. The target nuclear charge number can be any nuclear charge number within a preset nuclear charge number range. For example, the preset nuclear charge number range can be 4, 6-28. The target energy channel can be any energy channel among a plurality of preset different energy channels. In an embodiment of the present application, an energy channel can represent a preset energy range, and different energy channels represent different energy ranges. The target high-energy heavy ion is a high-energy heavy ion with a target nuclear charge number.

[0056] S203: Calculate the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity based on the current ground cosmic ray intensity, the predetermined target ground cosmic ray intensity, the predetermined first logarithmic flux of the target high-energy heavy ions in the target energy channel at the target ground cosmic ray intensity, and the target conversion coefficient.

[0057] The target ground cosmic ray intensity may be a critical ground cosmic ray intensity between the first ground cosmic ray intensity interval and the second ground cosmic ray intensity interval. The critical ground cosmic ray intensity is the above-mentioned ground cosmic ray intensity inflection point. Figure 1 As shown in Figure 1, one side of the critical ground cosmic ray intensity (i.e., the inflection point of the ground cosmic ray intensity) is the first ground cosmic ray intensity interval, and the other side is the second ground cosmic ray intensity interval. On both sides of the critical ground cosmic ray intensity (i.e., the inflection point of the ground cosmic ray intensity), the ground cosmic ray intensity and the high-energy heavy ion logarithmic flux are both linearly related, but the linear relationships on both sides are different (e.g., the slopes are different). That is, the ground cosmic ray intensity in the first ground cosmic ray intensity interval and its corresponding logarithmic flux are in a first linear relationship, and the ground cosmic ray intensity in the second ground cosmic ray intensity interval and its corresponding logarithmic flux are in a second linear relationship.

[0058] The target ground cosmic ray intensity can be predetermined. In addition, the first logarithmic flux of the target high-energy heavy ions in the target energy channel at the target ground cosmic ray intensity (hereinafter referred to as the first logarithmic flux) can also be predetermined, for example, based on the detection data of the target high-energy heavy ions in the target energy channel of the target nuclear charge number of the detection satellite at the target ground cosmic ray intensity.

[0059] Since the ground cosmic ray intensity is linearly related to the high-energy heavy ion logarithmic flux, when the current ground cosmic ray intensity, the target ground cosmic ray intensity, the first logarithmic flux and the target conversion coefficient are known, there is only one unknown number, that is, the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity. In this way, the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity (hereinafter referred to as the target logarithmic flux) can be obtained.

[0060] S204: Perform logarithmic conversion on the target logarithmic flux to obtain the target flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity.

[0061] The target logarithmic flux is the logarithm of the target flux. Therefore, by performing logarithmic transformation on the target logarithmic flux, the target flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity can be obtained.

[0062] The method for predicting the flux of high-energy heavy ions based on the ground cosmic ray intensity provided in the embodiment of the present application can accurately predict the flux of high-energy heavy ions with multiple different nuclear charge numbers in multiple different energy channels based on the current ground cosmic ray intensity, and can provide important background parameters for the assessment of single particle events of on-orbit satellites. Moreover, even after the detection satellite fails, the flux of high-energy heavy ions with multiple different nuclear charge numbers in multiple different energy channels can continue to be obtained, which can provide timely protection for the radiation risk assessment of on-orbit satellites.

[0063] According to some embodiments of the present application, optionally, the target ground cosmic ray intensity may be determined, for example, by the following steps.

[0064] In some embodiments, before S203: calculating the target logarithmic flux of target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity, the method for predicting the high-energy heavy ion flux based on the ground cosmic ray intensity may also include the following steps 1 to 4.

[0065] Step 1: Obtain the logarithmic flux of target high-energy heavy ions in the target energy channel at multiple ground cosmic ray intensities through detection.

[0066] See Figure 1 As shown, the flux of target high-energy heavy ions in the target energy channel at multiple ground cosmic ray intensities detected by the detection satellite can be collected, and then the logarithm can be calculated to obtain the logarithmic flux of target high-energy heavy ions in the target energy channel at multiple ground cosmic ray intensities.

[0067] Step 2: Determine a first linear relationship based on a portion of the multiple ground cosmic ray intensities and their corresponding logarithmic fluxes, and determine a second linear relationship based on another portion of the multiple ground cosmic ray intensities and their corresponding logarithmic fluxes.

[0068] See Figure 1As shown, there are differences in the linear relationships on both sides of the critical ground cosmic ray intensity (i.e., the ground cosmic ray intensity inflection point). According to a part of the ground cosmic ray intensities among the multiple ground cosmic ray intensities (such as taking at least two smaller ground cosmic ray intensities) and their corresponding logarithmic fluxes, a first linear relationship between the ground cosmic ray intensity and the logarithmic flux of the target high-energy heavy ions in the target energy channel can be obtained. And according to another part of the ground cosmic ray intensities among the multiple ground cosmic ray intensities (such as taking at least two larger ground cosmic ray intensities) and their corresponding logarithmic fluxes, a second linear relationship between the ground cosmic ray intensity and the logarithmic flux of the target high-energy heavy ions in the target energy channel can be obtained.

[0069] Step 3: The interval in which the ground cosmic ray intensity and its corresponding logarithmic flux present a first linear relationship is taken as the first ground cosmic ray intensity interval, and the interval in which the ground cosmic ray intensity and its corresponding logarithmic flux present a second linear relationship is taken as the second ground cosmic ray intensity interval.

[0070] After determining the first linear relationship and the second linear relationship, the ground cosmic ray intensity interval corresponding to the first linear relationship, i.e., the first ground cosmic ray intensity interval, can be determined. At the same time, the ground cosmic ray intensity interval corresponding to the second linear relationship, i.e., the second ground cosmic ray intensity interval, can also be determined.

[0071] Step 4: Taking the critical ground cosmic ray intensity between the first ground cosmic ray intensity interval and the second ground cosmic ray intensity interval as the target ground cosmic ray intensity.

[0072] After determining the first ground cosmic ray intensity interval and the second ground cosmic ray intensity interval, the critical ground cosmic ray intensity of the two intervals can be used as the target ground cosmic ray intensity, wherein any ground cosmic ray intensity in the first ground cosmic ray intensity interval is less than the critical ground cosmic ray intensity, and any ground cosmic ray intensity in the second ground cosmic ray intensity interval is greater than or equal to the critical ground cosmic ray intensity.

[0073] For example, taking the critical ground cosmic ray intensity of 6250 as an example, the first ground cosmic ray intensity interval can be an interval in which the ground cosmic ray intensity is less than 6250, and the second ground cosmic ray intensity interval can be an interval in which the ground cosmic ray intensity is greater than or equal to 6250.

[0074] Since the first linear relationship and the second linear relationship are different, the conversion coefficient corresponding to the first ground cosmic ray intensity interval and the conversion coefficient corresponding to the second ground cosmic ray intensity interval may also be different. Using different conversion coefficients for different intervals is conducive to improving the accuracy of predicting the high-energy heavy ion flux.

[0075] Figure 3A schematic flow chart of S202 in the method for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided in an embodiment of the present application. Figure 3 As shown, according to some embodiments of the present application, optionally, S202: determining a target conversion coefficient corresponding to a target high-energy heavy ion with a target nuclear charge number in a target energy channel according to a predetermined first correspondence between the nuclear charge number, energy channel and conversion coefficient of the high-energy heavy ions, may include the following steps S301 and S302.

[0076] S301: When the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, based on the first corresponding relationship, a first target conversion coefficient corresponding to the target high-energy heavy ions with the target nuclear charge number in the target energy channel is obtained.

[0077] Table 1 schematically shows the first correspondence between the nuclear charge number, energy channel and conversion coefficient of high-energy heavy ions.

[0078] Table 1

[0079]

[0080]

[0081]

[0082]

[0083]

[0084] As shown in Table 1, based on the detection data of high-energy heavy ions with different nuclear charge numbers detected by the detection satellite in different energy channels during the historical period and the ground cosmic ray intensity data during the same period, the first corresponding relationship between the nuclear charge number, energy channel and conversion coefficient of high-energy heavy ions can be obtained. For the sake of convenience, the conversion coefficient of the first ground cosmic ray intensity interval is called the first conversion coefficient K1 i,j , the conversion coefficient of the second ground cosmic ray intensity interval is called the second conversion coefficient K2 i,j . i represents the nuclear charge number, and j represents the energy channel number.

[0085] When the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, that is, when the current ground cosmic ray intensity is in the first ground cosmic ray intensity interval, based on the first corresponding relationship, the first target conversion coefficient corresponding to the target high-energy heavy ion with the target nuclear charge number in the target energy channel can be obtained. For example, for example, taking the target nuclear charge number as 4 and the target energy channel as energy channel 2 as an example, the first conversion coefficient corresponding to the target high-energy heavy ion with the nuclear charge number of 4 in energy channel 2 is the first target conversion coefficient, and the first target conversion coefficient is 0.001142. Among them, the first target conversion coefficient in the first corresponding relationship can be obtained based on a predetermined first linear relationship.

[0086] S302: When the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, based on the first corresponding relationship, a second target conversion coefficient corresponding to the target high-energy heavy ions with the target nuclear charge number in the target energy channel is obtained.

[0087] When the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, that is, when the current ground cosmic ray intensity is in the second ground cosmic ray intensity interval, based on the first corresponding relationship, the second target conversion coefficient corresponding to the target high-energy heavy ion with the target nuclear charge number in the target energy channel can be obtained. For example, for example, taking the target nuclear charge number as 4 and the target energy channel as energy channel 2 as an example, the second conversion coefficient corresponding to the target high-energy heavy ion with the nuclear charge number of 4 in energy channel 2 is the second target conversion coefficient, and the second target conversion coefficient is 0.000464. Among them, the second target conversion coefficient in the first corresponding relationship can be obtained based on a predetermined second linear relationship. Among them, the target conversion coefficient obtained in S202 can be the first target conversion coefficient or the second target conversion coefficient.

[0088] Figure 4 A schematic flow chart of S203 in the method for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided in an embodiment of the present application. Figure 4 As shown, according to some embodiments of the present application, optionally, S203: calculating the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity according to the current ground cosmic ray intensity, the predetermined target ground cosmic ray intensity, the predetermined first logarithmic flux of the target high-energy heavy ions in the target energy channel at the target ground cosmic ray intensity, and the target conversion coefficient, may include the following steps S401 and S402.

[0089] S401: When the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, calculate the first difference between the target ground cosmic ray intensity and the current ground cosmic ray intensity, calculate the first product of the first difference and the first target conversion coefficient, calculate the second difference between the first logarithmic flux and the first product, and obtain the target logarithmic flux.

[0090] For example, in some specific embodiments, when the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity can be calculated according to the following expression (1):

[0091] (1)

[0092] Among them, F i,j represents the target log flux, F0 i,j K1 represents the first logarithmic flux of target high-energy heavy ions with nuclear charge number i in energy channel j at the target ground cosmic ray intensity. i,j It represents the first target conversion coefficient of the target high-energy heavy ion with nuclear charge number i in the j energy channel, I i,j It represents the target ground cosmic ray intensity of the target high-energy heavy ion with nuclear charge number i in the j energy channel (i.e. the critical ground cosmic ray intensity, also known as the ground cosmic ray intensity inflection point), and I represents the current ground cosmic ray intensity.

[0093] S402: When the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, calculate the third difference between the current ground cosmic ray intensity and the target ground cosmic ray intensity, calculate the second product of the third difference and the second target conversion coefficient, calculate the sum of the first logarithmic flux and the second product, and obtain the target logarithmic flux.

[0094] For example, in some specific embodiments, when the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity can be calculated according to the following expression (2):

[0095] (2)

[0096] Among them, F i,j represents the target log flux, F0 i,j K2 represents the first logarithmic flux of target high-energy heavy ions with nuclear charge number i in energy channel j at the target ground cosmic ray intensity. i,j It represents the second target conversion coefficient of the target high-energy heavy ion with nuclear charge number i in the j energy channel, I i,j It represents the target ground cosmic ray intensity of the target high-energy heavy ion with nuclear charge number i in the j energy channel, and I represents the current ground cosmic ray intensity.

[0097] In this way, based on the current ground cosmic ray intensity, the logarithmic flux of the target high-energy heavy ion with a nuclear charge number of i in the j energy channel at the current ground cosmic ray intensity can be calculated.

[0098] According to some embodiments of the present application, optionally, after S203: calculating the target logarithmic flux of target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity, the method for predicting the high-energy heavy ion flux based on the ground cosmic ray intensity may also include the following steps five and six.

[0099] Step 5: Calculate the error range of the target logarithmic flux based on the target logarithmic flux and the preset error parameter.

[0100] The preset error parameter can be flexibly adjusted according to actual conditions, and this application does not limit this. In step five, for example, the product of the target logarithmic flux and the preset error parameter can be calculated to obtain the error range of the target logarithmic flux.

[0101] Step 6: Perform logarithmic transformation on the error range of the target logarithmic flux to obtain the error range of the target flux of the target high-energy heavy ions in the target energy channel.

[0102] In step 6, the error range of the target high-energy heavy ion flux in the target energy channel can be obtained by logarithmically transforming the error range of the target logarithmic flux. For example, in some specific embodiments, the expression of logarithmic transformation is as follows: , where F represents the target flux, ΔF represents the error range of the target flux, and F i,j represents the target logarithmic flux, ΔF i,j Indicates the error range of the target logarithmic flux. For example, in some examples, taking the element oxygen with a nuclear charge number of 8 as an example, the target flux F=7.81718e-8 in the second energy channel is obtained, and the error range of the target flux ΔF is: 5.1449e-8~1.19633e-7, the unit is: cm -2 s -1 sr -1 .

[0103] Through statistics and research on the logarithmic flux of high-energy heavy ions with nuclear charge numbers of 4, 6-28 in different energy channels, it is found that the range of variation of the logarithmic flux on the left and right sides of the inflection point is different. In view of this, the preset error parameter corresponding to the first ground cosmic ray intensity interval and the preset error parameter corresponding to the second ground cosmic ray intensity interval can be different.

[0104] In some specific embodiments, optionally, step five: calculating the error range of the target logarithmic flux according to the target logarithmic flux and a preset error parameter may include the following steps 51 and 52.

[0105] Step 51: When the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, the preset error parameter is the first error parameter, and the product of the target logarithmic flux and the first error parameter is calculated to obtain the error range of the target logarithmic flux.

[0106] For example, in some examples, the first error parameter may be 0.02. When the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, the error range of the target logarithmic flux may be calculated according to the following expression (3):

[0107] (3)

[0108] Where, ΔF i,j Indicates the error margin of the target log flux.

[0109] Step 52: When the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, the preset error parameter is the second error parameter, and the product of the target logarithmic flux and the second error parameter is calculated to obtain the error range of the target logarithmic flux.

[0110] The second error parameter is different from the first error parameter. For example, in some examples, the second error parameter may be 0.026. When the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, the error range of the target logarithmic flux may be calculated according to the following expression (4):

[0111] (4)

[0112] Where, ΔF i,j Indicates the error margin of the target log flux.

[0113] According to some embodiments of the present application, optionally, after S204: obtaining the target flux of target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity, the method for predicting the high-energy heavy ion flux based on the ground cosmic ray intensity may also include the following steps seven to nine.

[0114] Step 7: Obtain the actual flux of target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity through satellite detection.

[0115] For example, in some examples, the actual flux of target high-energy heavy ions in the target energy channel detected by the detection satellite in the historical time period at the current ground cosmic ray intensity can be obtained. Alternatively, if the detection satellite is not failed, the actual flux of target high-energy heavy ions in the target energy channel detected by the detection satellite in the current time period at the current ground cosmic ray intensity can also be obtained.

[0116] Step 8: Calculate the relative error between the target flux and the actual flux.

[0117] In some specific embodiments, optionally, for example, the relative error between the target flux and the actual flux can be calculated according to the following expression (5):

[0118] (5)

[0119] in, Indicates the relative error between the target flux and the actual flux, F C represents the target flux, F 0 Represents the actual flux.

[0120] Step nine: When the relative error is greater than the preset error threshold, adjust the target conversion coefficient and return to S203: calculate the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity, until the relative error is less than or equal to the preset error threshold.

[0121] Among them, the size of the preset error threshold can be flexibly adjusted according to actual conditions, and this application does not limit this.

[0122] In this way, when the relative error is greater than the preset error threshold, adjusting the target conversion coefficient is beneficial to further improve the accuracy of predicting the high-energy heavy ion flux.

[0123] For ease of understanding, the method for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided by the present application is described below in conjunction with a specific application embodiment.

[0124] Taking the calculation of the flux of multiple different energy channels of the element oxygen with a nuclear charge number of 8 as an example, according to the required time (day, universal time), the average ground cosmic ray intensity observed by the target ground cosmic ray monitoring station on the day and 13 days before and after is calculated, that is, the average ground cosmic ray intensity for a total of 27 days, and the current ground cosmic ray intensity is obtained. After calculation, the current ground cosmic ray intensity is I i,j =6030.

[0125] For the 2-8 energy channel of the element oxygen with a nuclear charge number of 8, the target ground cosmic ray intensity (i.e., critical ground cosmic ray intensity) I is found from Table 1. i,j Both are greater than the current ground cosmic ray intensity I. Expression (1) is used to determine the target logarithmic flux of the element oxygen with a nuclear charge number of 8 in energy channels 2-8. Expression (4) is used to determine the error range of the target logarithmic flux of the element oxygen with a nuclear charge number of 8 in energy channels 2-8. Through calculation, the target logarithmic flux of the element oxygen with a nuclear charge number of 8 in energy channels 2-8 and its error range are shown in Table 2.

[0126] Table 2

[0127]

[0128] After obtaining the target logarithmic flux and its error range of the elemental oxygen with a nuclear charge number of 8 in energy channels 2-8, the target logarithmic flux and the error range of the target logarithmic flux can be logarithmically transformed to obtain the target flux and its error range of the elemental oxygen with a nuclear charge number of 8 in energy channels 2-8.

[0129] For example, in some specific embodiments, the expression for logarithmic transformation is as follows: , where F represents the target flux, ΔF represents the error range of the target flux, and F i,j represents the target logarithmic flux, ΔF i,j Indicates the error range of the target logarithmic flux. For example, taking the element oxygen with a nuclear charge number of 8 as an example, its target flux F=7.81718e-8 in the second energy channel is obtained, and the error range of the target flux ΔF is: 5.1449e-8~1.19633e-7, the unit is: cm -2 s -1 sr -1 .

[0130] In order to verify the effect of the method for predicting the flux of high-energy heavy ions based on the ground cosmic ray intensity provided by the present application, in some embodiments, after obtaining the actual logarithmic flux of high-energy heavy ions with nuclear charge numbers of 4, 6, 7, 8, and 9 in each energy channel detected by the detection satellite, the method for predicting the flux of high-energy heavy ions based on the ground cosmic ray intensity calculates the target logarithmic flux of high-energy heavy ions with nuclear charge numbers of 4, 6, 7, 8, and 9 in each energy channel, and respectively calculates the relative errors of the target logarithmic flux of high-energy heavy ions with nuclear charge numbers of 4, 6, 7, 8, and 9 in each energy channel and the corresponding actual logarithmic flux. Among them, the average ground cosmic ray intensity observed by the target ground cosmic ray monitoring station on that day is 6039, which is used as the current ground cosmic ray intensity.

[0131] Table 3 schematically shows the target logarithmic flux, actual logarithmic flux and relative error of high-energy heavy ions with nuclear charge numbers of 4, 6, 7, 8 and 9 in each energy channel.

[0132] Table 3

[0133]

[0134] As shown in Table 3, among the calculated relative errors, the largest relative error is only 4.5%, and the smallest relative error is only 1.06%. Therefore, the method of predicting the high-energy heavy ion flux by the ground cosmic ray intensity is feasible, which can ensure the timely acquisition of the high-energy heavy ion flux, and can continue to obtain the high-energy heavy ion flux after the detection satellite fails, thus providing timely protection for the radiation risk assessment of the satellite in orbit.

[0135] Based on the same technical concept as the method for predicting the high-energy heavy ion flux based on the terrestrial cosmic ray intensity provided in the above-mentioned method embodiment, the present application also provides a device for predicting the high-energy heavy ion flux based on the terrestrial cosmic ray intensity.

[0136] Figure 5 A schematic diagram of a structure of a device for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided in an embodiment of the present application. Figure 5 As shown, the device 50 for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided in the embodiment of the present application may include the following modules:

[0137] An acquisition module 501 is used to acquire the current ground cosmic ray intensity, where the current ground cosmic ray intensity is the average ground cosmic ray intensity of the current time period or the average ground cosmic ray intensity of multiple time periods including the current time period;

[0138] A determination module 502 is used to determine a target conversion coefficient corresponding to a target high-energy heavy ion with a target nuclear charge number in a target energy channel according to a predetermined first correspondence between the nuclear charge number, energy channel and conversion coefficient of the high-energy heavy ion;

[0139] A calculation module 503 is used to calculate a target logarithmic flux of target high-energy heavy ions in a target energy channel at the current ground cosmic ray intensity according to a current ground cosmic ray intensity, a predetermined target ground cosmic ray intensity, a predetermined first logarithmic flux of target high-energy heavy ions in a target energy channel at the target ground cosmic ray intensity, and a target conversion coefficient; wherein the target ground cosmic ray intensity is a critical ground cosmic ray intensity between a first ground cosmic ray intensity interval and a second ground cosmic ray intensity interval, the ground cosmic ray intensity in the first ground cosmic ray intensity interval and the corresponding logarithmic flux are in a first linear relationship, and the ground cosmic ray intensity in the second ground cosmic ray intensity interval and the corresponding logarithmic flux are in a second linear relationship;

[0140] The conversion module 504 is used to perform logarithmic conversion on the target logarithmic flux to obtain the target flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity.

[0141] The device for predicting the flux of high-energy heavy ions based on the ground cosmic ray intensity provided in the embodiment of the present application can accurately predict the flux of high-energy heavy ions with multiple different nuclear charge numbers in multiple different energy channels based on the current ground cosmic ray intensity, and can provide important background parameters for the assessment of single particle events of on-orbit satellites. Moreover, even after the detection satellite fails, the flux of high-energy heavy ions with multiple different nuclear charge numbers in multiple different energy channels can continue to be obtained, which can provide timely protection for the radiation risk assessment of on-orbit satellites.

[0142] According to some embodiments of the present application, optionally, the device 50 for predicting the high-energy heavy ion flux based on the ground cosmic ray intensity provided in the embodiments of the present application may also include a setting module, which is used to obtain the logarithmic flux of the target high-energy heavy ion in the target energy channel at multiple ground cosmic ray intensities through detection; determine a first linear relationship based on the logarithmic flux corresponding to a part of the multiple ground cosmic ray intensities and the other part of the multiple ground cosmic ray intensities and the other part of the multiple ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities and the other part of the ground cosmic ray intensities

[0143] According to some embodiments of the present application, optionally, the determination module 502 can be specifically used to obtain, based on a first corresponding relationship, a first target conversion coefficient of the target high-energy heavy ions with a target nuclear charge number in a target energy channel when the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, wherein the first target conversion coefficient in the first corresponding relationship is obtained based on a predetermined first linear relationship; when the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, based on the first corresponding relationship, a second target conversion coefficient of the target high-energy heavy ions with a target nuclear charge number in a target energy channel is obtained, wherein the second target conversion coefficient in the first corresponding relationship is obtained based on a predetermined second linear relationship; wherein the target conversion coefficient is the first target conversion coefficient or the second target conversion coefficient.

[0144] According to some embodiments of the present application, optionally, the calculation module 503 can be specifically used to calculate the first difference between the target ground cosmic ray intensity and the current ground cosmic ray intensity when the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, calculate the first product of the first difference and the first target conversion coefficient, calculate the second difference between the first logarithmic flux and the first product, and obtain the target logarithmic flux; when the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, calculate the third difference between the current ground cosmic ray intensity and the target ground cosmic ray intensity, calculate the second product of the third difference and the second target conversion coefficient, calculate the sum of the first logarithmic flux and the second product, and obtain the target logarithmic flux.

[0145] According to some embodiments of the present application, optionally, the calculation module 503 can also be used to calculate the error range of the target logarithmic flux based on the target logarithmic flux and preset error parameters; perform logarithmic transformation on the error range of the target logarithmic flux to obtain the error range of the target flux of the target high-energy heavy ions in the target energy channel.

[0146] According to some embodiments of the present application, optionally, the calculation module 503 can be specifically used to preset the error parameter as a first error parameter when the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, calculate the product of the target logarithmic flux and the first error parameter, and obtain the error range of the target logarithmic flux; when the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, preset the error parameter as a second error parameter, calculate the product of the target logarithmic flux and the second error parameter, and obtain the error range of the target logarithmic flux; wherein the first error parameter is different from the second error parameter.

[0147] According to some embodiments of the present application, optionally, the device 50 for predicting the high-energy heavy ion flux based on the ground cosmic ray intensity provided in the embodiments of the present application may also include an adjustment module for obtaining the actual flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity through satellite detection; calculating the relative error between the target flux and the actual flux; when the relative error is greater than a preset error threshold, adjusting the target conversion coefficient, and returning to the step of calculating the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity, until the relative error is less than or equal to the preset error threshold.

[0148] Figure 5 Each module / unit in the device shown has the function of implementing each step in the method for predicting high-energy heavy ion flux based on ground cosmic ray intensity provided in the above-mentioned method embodiment, and can achieve its corresponding technical effect. For the sake of concise description, it will not be repeated here.

[0149] The electronic device in the embodiment of the present application may be a user terminal device, a server, other computing devices, or a cloud server. Figure 6 This is a hardware structure diagram of an electronic device of an embodiment of the present application. The electronic device may include a processor 601 and a memory 602 storing computer program instructions. When the processor 601 executes the computer program instructions, it implements the process or function of any of the above-mentioned embodiment methods.

[0150] Specifically, the processor 601 may include a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiment of the present application. The memory 602 may include a large-capacity memory for data or instructions. For example, the memory 602 may be at least one of the following: a hard disk drive (HDD), a read-only memory (ROM), a random access memory (RAM), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a tape, a universal serial bus (USB) drive, or other physical / tangible memory storage device. For another example, the memory 602 may include a removable or non-removable (or fixed) medium. For another example, the memory 602 may be inside or outside the integrated gateway disaster recovery device. The memory 602 may be a non-volatile solid-state memory. In other words, the memory 602 generally includes a tangible (non-transitory) computer-readable storage medium (such as a memory device) encoded with computer-executable instructions, and when the software is executed (such as by one or more processors), the operation described in the method of the embodiment of the present application may be performed. The processor 601 implements the process or function of any method in the above embodiments by reading and executing the computer program instructions stored in the memory 602.

[0151] In one example, Figure 6 The electronic device shown may also include a communication interface 603 and a bus 610. Among them, the processor 601, the memory 602, and the communication interface 603 are connected through the bus 610 and complete the communication between each other. The communication interface 603 is mainly used to realize the communication between each module, device, unit and / or device in the embodiment of the present application. The bus 610 includes hardware, software or both, and can couple the components of the online data traffic billing device to each other. For example, the bus may include at least one of the following: an accelerated graphics port (AGP) or other graphics bus, an enhanced industrial standard architecture (EISA) bus, a front-end bus (FSB), a hypertransport (HT) interconnect, an industrial standard architecture (ISA) bus, an infinite bandwidth interconnect, a low pin count (LPC) bus, a memory bus, a micro channel architecture (MCA) bus, a peripheral component interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a serial advanced technology attachment (SATA) bus, a video electronics standard association local (VLB) bus or other suitable buses. The bus 610 may include one or more buses. Although the embodiments of the present application describe or illustrate a specific bus, the embodiments of the present application may consider any suitable bus or interconnection method.

[0152] In combination with the method in the above embodiments, an embodiment of the present application also provides a computer-readable storage medium, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the process or function of any method in the above embodiments is implemented.

[0153] In addition, an embodiment of the present application further provides a computer program product, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the process or function of any one of the methods in the above embodiments is implemented.

[0154] The above exemplarily describes the flowcharts and / or block diagrams of the methods, devices, systems and computer program products of the embodiments of the present application, and describes the relevant various aspects. It should be understood that each box or combination thereof in the flowchart and / or block diagram can be implemented by computer program instructions, or by dedicated hardware that performs a specified function or action, or by a combination of dedicated hardware and computer instructions. For example, these computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to form a machine that enables these instructions executed by such a processor to enable the implementation of the functions / actions specified in each box or combination thereof in the flowchart and / or block diagram. Such a processor can be a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit.

[0155] The functional blocks shown in the structural block diagram of the embodiment of the present application can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application-specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc.; when implemented in software, it is a program or code segment used to perform the required task. The program or code segment can be stored in a memory, or transmitted on a transmission medium or a communication link via a data signal carried in a carrier. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0156] It should be noted that the present application is not limited to the specific configurations and processes described above or shown in the figures. The above is only a specific implementation mode of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the described system, device, module or unit can refer to the corresponding process in the method embodiment without further description. It should be understood that the scope of protection of the present application is not limited to this. Any technician familiar with the technical field can think of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and these modifications or substitutions should be included in the scope of protection of the present application.

Claims

1. A method for predicting high-energy heavy ion flux based on ground cosmic ray intensity, characterized in that: include: Obtaining a current ground cosmic ray intensity, where the current ground cosmic ray intensity is an average of the ground cosmic ray intensity in a current time period or an average of the ground cosmic ray intensity in multiple time periods including the current time period; Determining a target conversion coefficient corresponding to a target high-energy heavy ion with a target nuclear charge number in a target energy channel according to a first correspondence relationship among a predetermined nuclear charge number, an energy channel, and a conversion coefficient of the high-energy heavy ion; Calculate the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity according to the current ground cosmic ray intensity, the predetermined target ground cosmic ray intensity, the predetermined first logarithmic flux of the target high-energy heavy ions in the target energy channel at the target ground cosmic ray intensity, and the target conversion coefficient; wherein the target ground cosmic ray intensity is the critical ground cosmic ray intensity between the first ground cosmic ray intensity interval and the second ground cosmic ray intensity interval, the ground cosmic ray intensity in the first ground cosmic ray intensity interval and the corresponding logarithmic flux are in a first linear relationship, and the ground cosmic ray intensity in the second ground cosmic ray intensity interval and the corresponding logarithmic flux are in a second linear relationship; The target logarithmic flux is logarithmically transformed to obtain the target flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity.

2. The method according to claim 1, characterized in that Before calculating the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity, the method further comprises: By detecting, the logarithmic flux of target high-energy heavy ions in the target energy channel at multiple ground cosmic ray intensities is obtained; Determining a first linear relationship according to a portion of the ground cosmic ray intensities among the plurality of ground cosmic ray intensities and the corresponding logarithmic fluxes, and determining a second linear relationship according to another portion of the ground cosmic ray intensities among the plurality of ground cosmic ray intensities and the corresponding logarithmic fluxes; The interval in which the ground cosmic ray intensity and the corresponding logarithmic flux present a first linear relationship is taken as the first ground cosmic ray intensity interval, and the interval in which the ground cosmic ray intensity and the corresponding logarithmic flux present a second linear relationship is taken as the second ground cosmic ray intensity interval; The critical ground cosmic ray intensity of the first ground cosmic ray intensity interval and the second ground cosmic ray intensity interval is taken as the target ground cosmic ray intensity, wherein any ground cosmic ray intensity in the first ground cosmic ray intensity interval is less than the critical ground cosmic ray intensity, and any ground cosmic ray intensity in the second ground cosmic ray intensity interval is greater than or equal to the critical ground cosmic ray intensity.

3. The method according to claim 1, characterized in that According to a predetermined first correspondence between the nuclear charge number, energy channel and conversion coefficient of the high-energy heavy ion, determining a target conversion coefficient corresponding to a target high-energy heavy ion with a target nuclear charge number in a target energy channel includes: When the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, based on the first corresponding relationship, a first target conversion coefficient corresponding to the target high-energy heavy ion with the target nuclear charge number in the target energy channel is obtained, wherein the first target conversion coefficient in the first corresponding relationship is obtained based on a predetermined first linear relationship; When the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, based on the first corresponding relationship, a second target conversion coefficient corresponding to the target high-energy heavy ion with the target nuclear charge number in the target energy channel is obtained, wherein the second target conversion coefficient in the first corresponding relationship is obtained based on a predetermined second linear relationship; The target conversion coefficient is the first target conversion coefficient or the second target conversion coefficient.

4. The method according to claim 3, characterized in that Calculating a target logarithmic flux of target high-energy heavy ions in a target energy channel at the current ground cosmic ray intensity according to the current ground cosmic ray intensity, the predetermined target ground cosmic ray intensity, the predetermined first logarithmic flux of target high-energy heavy ions in a target energy channel at the target ground cosmic ray intensity, and the target conversion coefficient, including: When the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, a first difference between the target ground cosmic ray intensity and the current ground cosmic ray intensity is calculated, a first product of the first difference and a first target conversion coefficient is calculated, and a second difference between the first logarithmic flux and the first product is calculated to obtain a target logarithmic flux; When the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, the third difference between the current ground cosmic ray intensity and the target ground cosmic ray intensity is calculated, the second product of the third difference and the second target conversion coefficient is calculated, and the sum of the first logarithmic flux and the second product is calculated to obtain the target logarithmic flux.

5. The method according to claim 1, characterized in that After calculating the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity, the method further comprises: Calculate the error range of the target logarithmic flux according to the target logarithmic flux and the preset error parameter; The error range of the target logarithmic flux is logarithmically transformed to obtain the error range of the target flux of the target high-energy heavy ions in the target energy channel.

6. The method according to claim 5, characterized in that According to the target logarithmic flux and the preset error parameters, the error range of the target logarithmic flux is calculated, including: When the current ground cosmic ray intensity is greater than or equal to the target ground cosmic ray intensity, the preset error parameter is the first error parameter, and the product of the target logarithmic flux and the first error parameter is calculated to obtain the error range of the target logarithmic flux; When the current ground cosmic ray intensity is less than the target ground cosmic ray intensity, the preset error parameter is the second error parameter, and the product of the target logarithmic flux and the second error parameter is calculated to obtain the error range of the target logarithmic flux; The first error parameter is different from the second error parameter.

7. The method according to claim 1, characterized in that After obtaining the target flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity, the method further comprises: The actual flux of target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity is obtained through satellite detection; Calculate the relative error between the target flux and the actual flux; When the relative error is greater than a preset error threshold, the target conversion coefficient is adjusted, and the step of calculating the target logarithmic flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity is returned until the relative error is less than or equal to the preset error threshold.

8. A device for predicting high-energy heavy ion flux based on ground cosmic ray intensity, characterized in that: include: An acquisition module, used to acquire the current ground cosmic ray intensity, wherein the current ground cosmic ray intensity is the average of the ground cosmic ray intensity in the current time period or the average of the ground cosmic ray intensity in multiple time periods including the current time period; A determination module, for determining a target conversion coefficient corresponding to a target high-energy heavy ion having a target nuclear charge number in a target energy channel according to a predetermined first correspondence between the nuclear charge number, energy channel and conversion coefficient of the high-energy heavy ion; A calculation module, for calculating a target logarithmic flux of target high-energy heavy ions in a target energy channel at the current ground cosmic ray intensity according to a current ground cosmic ray intensity, a predetermined target ground cosmic ray intensity, a predetermined first logarithmic flux of target high-energy heavy ions in a target energy channel at the target ground cosmic ray intensity, and a target conversion coefficient; wherein the target ground cosmic ray intensity is a critical ground cosmic ray intensity between a first ground cosmic ray intensity interval and a second ground cosmic ray intensity interval, the ground cosmic ray intensity in the first ground cosmic ray intensity interval and the corresponding logarithmic flux are in a first linear relationship, and the ground cosmic ray intensity in the second ground cosmic ray intensity interval and the corresponding logarithmic flux are in a second linear relationship; The conversion module is used to perform logarithmic conversion on the target logarithmic flux to obtain the target flux of the target high-energy heavy ions in the target energy channel at the current ground cosmic ray intensity.

9. An electronic device, characterized in that: The electronic device comprises: a processor and a memory storing computer program instructions; when the electronic device executes the computer program instructions, the method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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