Radiation detection system and radiation detection method

Abstract

The invention discloses a radiation detection system and a radiation detection method, and relates to the technical field of radiation detection. The radiation detection system comprises a power supply and a radiation detector, wherein a first end of the radiation detector is connected with the power supply; the particle counting circuit is connected with the second end of the radiation detector, and the particle counting circuit is used for collecting a first signal output by the radiation detector; the current integrating circuit and the particle counting circuit are connected with the second end of the radiation detector, and the particle counting circuit is used for collecting a second signal output by the radiation detector; the temperature sensor is used for collecting the temperature of the space where the radiation detector is located to obtain a temperature signal; the processor is connected with the particle counting circuit, the current integrating circuit and the temperature sensor and used for determining space radiation information of the space where the radiation detector is located according to the first signal, the second signal and the temperature signal. The detection range of the radiation detection system is expanded, and the application scene of the radiation detection system is expanded.

Description

Technical Field

[0001] The present application relates to the field of radiation detection technology, and in particular to a radiation detection system and a radiation detection method. Background Art

[0002] In recent years, the ionizing radiation environment in near-Earth space has become complex and changeable, posing a serious threat to the normal operation of spacecraft and the health and safety of astronauts. There are three main sources of near-Earth space radiation: galactic cosmic rays, solar proton events, and the Earth's radiation belt. The particle flux of galactic cosmic rays is relatively low and stable, but it contains extremely high-energy radiation particles, which are the main source of single-particle events in spacecraft electronics, and its biological dose effect cannot be ignored. Solar proton events are closely related to solar activity. During solar proton events, the flux of radiation particles in near-Earth space may increase by several orders of magnitude. In severe cases, it can directly destroy spacecraft and threaten the lives of astronauts. The Earth's radiation belt includes two inner and outer radiation belts and a South Atlantic radiation anomaly zone. The main radiation particles are protons and electrons. The radiation particle flux in different regions may differ by 6 to 7 orders of magnitude. However, the existing radiation detection system cannot detect the radiation particle flux in different scenarios. It can be seen that the existing radiation detection system has technical problems such as a small detection range and few application scenarios. Summary of the invention

[0003] The embodiments of the present application provide a radiation detection system and a radiation detection method, which are used to solve technical problems in the prior art such as a small detection range and few application scenarios of radiation detection systems.

[0004] According to a first aspect of an embodiment of the present application, a radiation detection system is provided, comprising:

[0005] A power supply and a radiation detector, wherein a first end of the radiation detector is connected to the power supply;

[0006] A particle counting circuit, the particle counting circuit is connected to the second end of the radiation detector, and the particle counting circuit is used to collect a first signal output by the radiation detector;

[0007] A current integration circuit and a particle counting circuit are connected to the second end of the radiation detector, and the particle counting circuit is used to collect a second signal output by the radiation detector;

[0008] A temperature sensor is used to collect the temperature of the space where the radiation detector is located and obtain a temperature signal;

[0009] The processor is connected to the particle counting circuit, the current integration circuit and the temperature sensor respectively, and is used to determine the spatial radiation information of the space where the radiation detector is located according to the first signal, the second signal and the temperature signal.

[0010] The radiation detection system in this embodiment collects a first signal output by the radiation detector through a particle counting circuit, collects a second signal output by the radiation detector through a current integration circuit, collects the temperature of the space where the radiation detector is located through a temperature sensor, obtains a temperature signal, and determines the spatial radiation information of the space where the radiation detector is located based on the first signal, the second signal and the temperature signal, thereby expanding the detection range of the radiation detection system, expanding the application scenarios of the radiation detection system, and at the same time ensuring the accuracy of the spatial radiation information and the detection accuracy of the radiation detection system, thereby improving the detection efficiency of the radiation detection system.

[0011] A second aspect of an embodiment of the present application provides a radiation detection method, including:

[0012] collecting a first signal output by the radiation detector through a particle counting circuit;

[0013] collecting a second signal output by the radiation detector through a current integration circuit;

[0014] The temperature of the space where the radiation detector is located is collected by a temperature sensor to obtain a temperature signal;

[0015] The spatial radiation information of the space where the radiation detector is located is determined according to the first signal, the second signal and the temperature signal.

[0016] The radiation detection method in this embodiment determines the spatial radiation information of the space where the radiation detector is located based on the first signal, the second signal and the temperature signal, thereby expanding the detection range of the radiation detection system and the application scenarios of the radiation detection system, while ensuring the accuracy of the spatial radiation information and the detection accuracy of the radiation detection system, thereby improving the detection efficiency of the radiation detection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 One of the circuit diagrams of the radiation detection system provided in the embodiment of the present application;

[0019] Figure 2 A second circuit diagram of the radiation detection system provided in an embodiment of the present application;

[0020] Figure 3 A flow chart of a radiation detection method provided in an embodiment of the present application;

[0021] Figure 4 A functional module block diagram of a radiation detection device provided in an embodiment of the present application;

[0022] Figure 5 A functional schematic diagram of a radiation detection device provided in an embodiment of the present application;

[0023] Figure 6 A structural block diagram of a radiation detection device provided in an embodiment of the present application;

[0024] in, Figure 1 and Figure 2 The corresponding relationship between the reference numerals and the component names is as follows:

[0025] 100 radiation detection system, 102 power supply, 104 radiation detector, 106 particle counting circuit, 108 current integration circuit, 110 temperature sensor, 112 processor, 114 first capacitor, 116 second capacitor, 118 first operational amplifier, 120 third capacitor, 122 second operational amplifier, 124 third operational amplifier, 126 first switch, 128 second switch, 130 counter, 132 controller, 134 analog-to-digital converter, 136 fourth capacitor, 138 first resistor. DETAILED DESCRIPTION

[0026] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0027] 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 that there is 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 the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0028] In some embodiments, Figure 1One of the circuit diagrams of the radiation detection system 100 provided in an embodiment of the present application, Figure 2 The second circuit diagram of the radiation detection system 100 provided in the embodiment of the present application is as follows: Figure 1 and Figure 2 As shown, a radiation detection system 100 is proposed, comprising:

[0029] A power supply 102 and a radiation detector 104, wherein a first end of the radiation detector 104 is connected to the power supply 102;

[0030] A particle counting circuit 106 , the particle counting circuit 106 is connected to the second end of the radiation detector 104 , and the particle counting circuit 106 is used to collect the first signal output by the radiation detector 104 ;

[0031] The current integration circuit 108 and the particle counting circuit 106 are connected to the second end of the radiation detector 104 , and the particle counting circuit 106 is used to collect the second signal output by the radiation detector 104 ;

[0032] The temperature sensor 110 is used to collect the temperature of the space where the radiation detector 104 is located and obtain a temperature signal;

[0033] The processor 112 is connected to the particle counting circuit 106, the current integration circuit 108 and the temperature sensor 110 respectively, and is used to determine the spatial radiation information of the space where the radiation detector 104 is located according to the first signal, the second signal and the temperature signal.

[0034] In this embodiment, the radiation detection system 100 is a system for detecting radiation conditions in a specific space.

[0035] Exemplarily, the radiation detection system 100 may be disposed inside a spacecraft, a satellite, a spacecraft, a rocket, or a space station.

[0036] The radiation detection system 100 includes a power supply 102 and a radiation detector 104 . A first end of the radiation detector 104 is connected to the power supply 102 . The radiation detector 104 is a sensor for detecting radiation, and the power supply 102 is used to supply power to the radiation detector 104 .

[0037] Exemplarily, the connection between the various components inside the radiation detection system 100 may be a wired electrical connection, a wired communication connection, or a wireless communication connection.

[0038] The radiation detection system 100 also includes a particle counting circuit 106 , a current integration circuit 108 , and a temperature sensor 110 .

[0039] The particle counting circuit 106 is connected to the second end of the radiation detector 104 , and is used to collect a first signal output by the radiation detector 104 , wherein the first signal is a signal output by the radiation detector 104 .

[0040] The particle counting circuit 106 is connected to the second end of the radiation detector 104 , and the particle counting circuit 106 is used to collect a second signal output by the radiation detector 104 , wherein the second signal is a signal output by the radiation detector 104 .

[0041] The temperature sensor 110 and the radiation detector 104 are arranged in the same space, and are used to collect the temperature of the space where the radiation detector 104 is located to obtain a temperature signal, wherein the temperature signal represents the temperature of the space where the radiation detector 104 is located.

[0042] By way of example, the first signal may include a current pulse signal output by the radiation detector 104 .

[0043] For example, the second signal may include an integrated value of a current output by the radiation detector 104 .

[0044] The radiation detection system 100 further includes a processor 112 , which is connected to the particle counting circuit 106 , the current integration circuit 108 , and the temperature sensor 110 , respectively.

[0045] The processor 112 can receive the first signal, the second signal and the temperature signal respectively, and determine the spatial radiation information of the space where the radiation detector 104 is located according to the first signal, the second signal and the temperature signal, wherein the spatial radiation information represents the radiation condition of the space where the radiation detector 104 is located.

[0046] Exemplarily, the spatial radiation information may include the amount of radiation particles and the total energy of radiation particles.

[0047] It should be noted that the radiation detection system 100 in this embodiment can determine the spatial radiation information of the space where the radiation detector 104 is located based on the first signal, the second signal and the temperature signal corresponding to the radiation detector 104. Since it involves multiple information such as the first signal, the second signal and the temperature signal, the data accuracy of the spatial radiation information is improved.

[0048] The radiation detection system 100 in this embodiment collects a first signal output by the radiation detector 104 through a particle counting circuit 106, collects a second signal output by the radiation detector 104 through a current integration circuit 108, collects the temperature of the space where the radiation detector 104 is located through a temperature sensor 110, obtains a temperature signal, and determines the spatial radiation information of the space where the radiation detector 104 is located based on the first signal, the second signal and the temperature signal, thereby expanding the detection range of the radiation detection system 100, expanding the application scenarios of the radiation detection system 100, and at the same time ensuring the accuracy of the spatial radiation information, ensuring the detection accuracy of the radiation detection system 100, and thereby improving the detection efficiency of the radiation detection system 100.

[0049] In some embodiments, the spatial radiation information includes spatial particle flux,

[0050] The processor 112 is configured to determine the spatial particle flux according to the first signal and the second signal.

[0051] In this embodiment, the spatial radiation information includes spatial particle flux, which is the number of particles passing through a unit area per unit time in the space where the radiation detection system 100 is located.

[0052] The processor 112 performs data processing on the first signal and the second signal to obtain spatial particle flux.

[0053] In some embodiments, the processor 112 is configured to determine a first particle flux based on the first signal and to determine a second particle flux based on the second signal;

[0054] The processor 112 is further configured to perform data supplementation processing on the first particle flux according to the second particle flux to obtain the spatial particle flux.

[0055] In this embodiment, the processor 112 is used to determine a first particle flux according to a first signal, and to determine a second particle flux according to a second signal, wherein the first particle flux is a particle flux determined based on the first signal, and the second particle flux is a particle flux determined based on the second signal.

[0056] The processor 112 is further configured to perform data supplementation processing on the first particle flux according to the second particle flux to obtain the spatial particle flux.

[0057] It should be noted that supplementing the second particle flux to the first particle flux to obtain the space particle flux can greatly expand the data range of the space particle flux, thereby expanding the detection range of the radiation detection system 100 and expanding the application scenarios of the radiation detection system 100.

[0058] In some embodiments, the particle counting circuit 106 is used to collect the current pulse amplitude and particle energy of the radiation detector 104;

[0059] The particle counting circuit 106 is further configured to determine a first signal based on the current pulse amplitude and the particle energy.

[0060] In this embodiment, the particle counting circuit 106 can collect the current pulse amplitude and particle energy of the radiation detector 104 , wherein the current pulse amplitude is the amplitude of the current pulse output by the radiation detector 104 , and the particle energy is the flow rate of particles detected by the radiation detector 104 .

[0061] For example, the particle energy may be the total flow rate of particles detected by the radiation detector 104 .

[0062] The particle counting circuit 106 determines a first signal based on the current pulse amplitude and the particle energy.

[0063] In some embodiments, the current integration circuit 108 is used to collect the current integration value of the radiation detector 104;

[0064] The current integration circuit 108 is further configured to determine a second signal according to the current integration value.

[0065] In this embodiment, the current integration circuit 108 can collect the current integration value of the radiation detector 104 , and the current integration value is the value after the current signal output by the radiation detector 104 is integrated.

[0066] The current integration circuit 108 determines a second signal according to the current integration value.

[0067] In some embodiments, a radiation detection system 100 is provided, wherein a particle counting circuit 106 includes a first capacitor 114 , a second capacitor 116 , and a first operational amplifier 118 ;

[0068] One end of the first capacitor 114 is connected to the second end of the radiation detector 104 , and the other end is connected to the first end of the first operational amplifier 118 ;

[0069] One end of the second capacitor 116 is connected to the first end of the first operational amplifier 118 , and the other end of the second capacitor 116 is connected to the second end of the first operational amplifier 118 . The second end of the first operational amplifier 118 is connected to the processor 112 .

[0070] In this embodiment, the particle counting circuit 106 includes a first capacitor 114 , a second capacitor 116 , and a first operational amplifier 118 .

[0071] One end of the first capacitor 114 is connected to the second end of the radiation detector 104 , and the other end is connected to the first end of the first operational amplifier 118 . The first capacitor 114 is used to filter the signal output by the radiation detector 104 .

[0072] One end of the second capacitor 116 is connected to the first end of the first operational amplifier 118 , and the other end is connected to the second end of the first operational amplifier 118 . The second end of the first operational amplifier 118 is connected to the processor 112 . The second capacitor 116 is used to store energy output by the radiation detector 104 .

[0073] Specifically, the particle counting circuit 106 composed of the first capacitor 114 , the second capacitor 116 and the first operational amplifier 118 can collect the electrical signal of the radiation detector 104 and output a first signal.

[0074] The radiation detection system 100 in this embodiment can collect the electrical signal of the radiation detector 104 through the particle counting circuit 106 composed of the first capacitor 114, the second capacitor 116 and the first operational amplifier 118, and output the first signal, thereby ensuring the signal accuracy of the first signal and further ensuring the information accuracy of the spatial radiation information.

[0075] In some embodiments, the current integration circuit 108 includes a third capacitor 120 , a second operational amplifier 122 , a third operational amplifier 124 , a first switch 126 , a second switch 128 , and a counter 130 .

[0076] The first end of the second operational amplifier 122 is connected to the second end of the radiation detector 104 , the second end of the second operational amplifier 122 is connected to one end of the second switch 128 , and the other end of the second switch 128 is grounded, wherein the second switch 128 is a switch that can be periodically turned on and off.

[0077] Exemplarily, a preset cycle is obtained, and the second switch 128 is controlled to be turned on and off according to the preset cycle.

[0078] One end of the third capacitor 120 is connected to the first end of the second operational amplifier 122 , and the other end of the third capacitor 120 is connected to the second end of the second operational amplifier 122 , wherein the third capacitor 120 is used to store energy output by the radiation detector 104 .

[0079] The first end of the third operational amplifier 124 is connected to the second end of the second operational amplifier 122, the second end of the third operational amplifier 124 is used to access a preset voltage, and the third end of the third operational amplifier 124 is connected to one end of the counter 130, wherein the preset voltage is a preset voltage value, and the counter 130 can record the number of switching times of the first switch 126.

[0080] One end of the first switch 126 is connected to the second end of the radiation detector 104 , and the other end of the first switch 126 is connected to the processor 112 , wherein the second signal is output to the processor 112 through the first switch 126 .

[0081] Exemplarily, when the first switch 126 is closed, the second signal is output to the processor 112 through the first switch 126 .

[0082] Specifically, the current integration circuit 108 composed of the third capacitor 120, the second operational amplifier 122, the third operational amplifier 124, the first switch 126, the second switch 128 and the counter 130 can collect the electrical signal of the radiation detector 104 and output the second signal.

[0083] In some embodiments, the third operational amplifier 124 is used to perform a voltage comparison between the output voltage of the second operational amplifier 122 and a preset voltage.

[0084] Exemplarily, the third operational amplifier 124 may function as a voltage comparator.

[0085] The counter 130 is used for controlling the first switch 126 according to the output voltage of the third operational amplifier 124 , and for storing the switching times of the first switch 126 .

[0086] Exemplarily, the third operational amplifier 124 can output different voltages according to the magnitude of the output voltage of the second operational amplifier 122 and the preset voltage.

[0087] In some embodiments, when the output voltage of the second operational amplifier 122 is greater than a preset voltage, the counter 130 is configured to control the first switch 126 to be closed.

[0088] Exemplarily, when the output voltage of the second operational amplifier 122 is greater than a preset voltage, the third operational amplifier 124 may output a high level voltage, and the counter 130 is used to control the first switch 126 to close according to the high level voltage.

[0089] When the output voltage of the second operational amplifier 122 is less than or equal to the preset voltage, the counter 130 is configured to control the first switch 126 to be turned off.

[0090] Exemplarily, when the output voltage of the second operational amplifier 122 is less than or equal to a preset voltage, the third operational amplifier 124 may output a low level voltage, and the counter 130 is used to control the first switch 126 to be disconnected according to the low level voltage.

[0091] In some embodiments, the current integration circuit 108 further includes a controller 132 , an analog-to-digital converter 134 , and a fourth capacitor 136 .

[0092] The controller 132 is used to control the switch state of the second switch 128 according to a preset cycle.

[0093] The analog-to-digital converter 134 is connected to the other end of the second switch 128 . When the second switch 128 is closed, the analog-to-digital converter 134 is used to collect the output voltage of the second operational amplifier 122 .

[0094] One end of the fourth capacitor 136 is connected to the other end of the second switch 128 , and the other end is grounded, wherein the fourth capacitor 136 is used to stabilize the voltage between the second switch 128 and the ground.

[0095] In some embodiments, a radiation detection system 100 is provided, wherein the processor 112 is configured to calibrate the first signal according to the temperature signal to obtain an updated first signal;

[0096] The processor 112 is further configured to determine spatial radiation information according to the updated first signal and the second signal.

[0097] In this embodiment, the processor 112 can calibrate the first signal according to the temperature signal to obtain an updated first signal.

[0098] Exemplarily, the processor 112 can calibrate the first signal according to the temperature signal to obtain a calibrated first signal.

[0099] The processor 112 can also determine the spatial radiation information according to the updated first signal and the second signal.

[0100] The radiation detection system 100 in this embodiment calibrates the first signal according to the temperature signal to obtain an updated first signal, thereby ensuring the signal accuracy of the first signal and further ensuring the information accuracy of the spatial radiation information.

[0101] In some embodiments, the radiation detection system 100 further includes a first resistor 138 , wherein one end of the first resistor 138 is connected to the second end of the radiation detector 104 and the other end is grounded, and the first resistor 138 is used to stabilize the voltage of the radiation detector 104 .

[0102] In some embodiments, Figure 3 A flow chart of a radiation detection method provided in an embodiment of the present application, such as Figure 3 As shown, an embodiment of the present application provides a radiation detection method, comprising:

[0103] Step S301: collecting a first signal output by a radiation detector through a particle counting circuit.

[0104] In this embodiment, the radiation detection system is the radiation detection system in any of the above embodiments, and the radiation detection system includes a particle counting circuit, a current integration circuit and a temperature sensor.

[0105] The radiation detection system collects a first signal output by the radiation detector through a particle counting circuit.

[0106] Step S302: collecting a second signal output by the radiation detector through a current integration circuit.

[0107] The radiation detection system collects the second signal output by the radiation detector through a current integration circuit.

[0108] Step S303, collecting the temperature of the space where the radiation detector is located by a temperature sensor to obtain a temperature signal.

[0109] The radiation detection system collects the temperature of the space where the radiation detector is located through a temperature sensor to obtain a temperature signal.

[0110] Step S304: determining the spatial radiation information of the space where the radiation detector is located according to the first signal, the second signal and the temperature signal.

[0111] The radiation detection system determines the spatial radiation information of the space where the radiation detector is located according to the first signal, the second signal and the temperature signal.

[0112] Exemplarily, the radiation detection system further includes a processor, and the spatial radiation information of the space where the radiation detector is located is determined by the processor.

[0113] Exemplarily, the radiation detector is in working state with reverse bias provided by the power supply. When there is no radiation particle incident, the current flowing through the radiation detector is a direct current. Since the single particle measurement channel is in a disconnected state at the DC blocking capacitor (i.e., the first capacitor), the voltage measurement circuit measurement value (i.e., the electrical signal at both ends of the first resistor) is the static leakage current of the detector. Under low counting rate conditions, radiation particles are incident and deposit energy in the radiation detector, drifting under high voltage electric field to form pulse current. After the pulse current is amplified and shaped by the single particle measurement channel, an output signal with an amplitude proportional to the particle energy is obtained. After being digitized by the subsequent sampling circuit, because the pulse current is mainly a high-frequency component, the shunt on the first resistor is relatively low, and the leakage current does not change significantly. Under high counting rate conditions, radiation particles continue to deposit energy in the detector. In addition to the high-frequency component, the drift current also has a considerable low-frequency component. After the low-frequency component flows through the first resistor, a dynamic leakage current with low-frequency variation is generated at both ends of the first resistor. When the sampling rate of the leakage current measurement channel is high enough, the leakage current value reflecting the incident particle intensity information can be collected.

[0114] Generally, the static leakage current of a radiation detector is related to temperature. The higher the temperature, the larger the static leakage current. Therefore, by adding a temperature sensor near the detector, the leakage current offset caused by temperature can be corrected to improve the reliability of the measurement results. At the same time, the static leakage current of the radiation detector will also change with the cumulative radiation dose. By using this feature, by comparing the static leakage current changes after temperature correction at different time points, the cumulative radiation dose changes over time in the environment where the detector is located can also be obtained.

[0115] For example, in order to more accurately measure the total energy deposition of radiation particles in the detector, the leakage current measurement circuit can be changed to a current integration circuit (i.e., a current integration circuit). The leakage current of the detector accumulates on the third capacitor. When the output voltage of the second operational amplifier is higher than the preset voltage, the first switch is closed, the third capacitor is discharged, the output voltage of the second operational amplifier becomes a low-level voltage, and the counter counts by 1. The control circuit controls the second switch to close and collect at a certain frequency, and at the same time controls the analog-to-digital converter to collect the current output voltage of the second operational amplifier. Combining the output voltage increment of the second operational amplifier before and after the moment and the counter value, the total current integral value in the period can be obtained.

[0116] The radiation detection method in this embodiment determines the spatial radiation information of the space where the radiation detector is located based on the first signal, the second signal and the temperature signal, thereby ensuring the accuracy of the spatial radiation information and the detection accuracy of the radiation detection system, thereby improving the detection efficiency of the radiation detection system.

[0117] In some embodiments, an embodiment of the present application provides a radiation detection method, which determines spatial radiation information of a space where a radiation detector is located according to a first signal, a second signal and a temperature signal, including:

[0118] Step S401: calibrate the first signal according to the temperature signal to obtain an updated first signal.

[0119] In this embodiment, the radiation detection system calibrates the first signal according to the temperature signal to obtain an updated first signal.

[0120] Step S402: determining spatial radiation information according to the updated first signal and the second signal.

[0121] The radiation detection system determines the spatial radiation information according to the updated first signal and the second signal.

[0122] The radiation detection method in this embodiment determines the spatial radiation information based on the updated first signal and the second signal, thereby ensuring the accuracy of the spatial radiation information and the detection accuracy of the radiation detection system, thereby improving the detection efficiency of the radiation detection system.

[0123] In some embodiments, Figure 4 The functional module block diagram of the radiation detection device provided in the embodiment of the present application is as follows: Figure 4 As shown, in an embodiment of the present application, a radiation detection device 500 is provided, comprising:

[0124] A control unit 502, configured to collect a first signal output by the radiation detector through a particle counting circuit;

[0125] The control unit 502 is further configured to collect a second signal output by the radiation detector through a current integration circuit;

[0126] The control unit 502 is further used to collect the temperature of the space where the radiation detector is located through the temperature sensor to obtain a temperature signal;

[0127] The control unit 502 is further configured to determine the spatial radiation information of the space where the radiation detector is located according to the first signal, the second signal and the temperature signal.

[0128] In this embodiment, the radiation detection system is the radiation detection system in any of the above embodiments, and the radiation detection system includes a particle counting circuit, a current integration circuit and a temperature sensor.

[0129] The radiation detection system collects a first signal output by the radiation detector through a particle counting circuit, and then collects a second signal output by the radiation detector through a current integration circuit.

[0130] The radiation detection system collects the temperature of the space where the radiation detector is located through a temperature sensor to obtain a temperature signal.

[0131] The radiation detection system determines the spatial radiation information of the space where the radiation detector is located according to the first signal, the second signal and the temperature signal.

[0132] Exemplarily, the radiation detection system further includes a processor, and the spatial radiation information of the space where the radiation detector is located is determined by the processor.

[0133] For example, Figure 5 A functional schematic diagram of a radiation detection device provided in an embodiment of the present application, such as Figure 5 As shown, the radiation detection system includes sensors, analog circuits and digital circuits. The sensors include radiation sensors and temperature sensors. The analog circuits include current sampling channels, single particle counting channels and analog-to-digital converters. The digital circuits include control boards. The digital circuits can communicate with satellite platforms and transmit data.

[0134] The radiation detection device 500 in this embodiment determines the spatial radiation information of the space where the radiation detector is located based on the first signal, the second signal and the temperature signal, thereby ensuring the accuracy of the spatial radiation information and the detection accuracy of the radiation detection system, thereby improving the detection efficiency of the radiation detection system.

[0135] In some embodiments, an embodiment of the present application provides a radiation detection device 500, further comprising:

[0136] The control unit 502 is further configured to calibrate the first signal according to the temperature signal to obtain an updated first signal;

[0137] The control unit 502 is further configured to determine the spatial radiation information according to the updated first signal and the second signal.

[0138] In some embodiments, Figure 6 As shown, a radiation detection device 600 is proposed, and the radiation detection device 600 includes a processor 602 and a memory 604. The memory 604 stores a computer program, and the computer program implements the steps of the radiation detection method in any of the above embodiments when executed by the processor 602. Therefore, the radiation detection device 600 has all the beneficial effects of the radiation detection method in any of the above embodiments, which will not be repeated here.

[0139] In some embodiments, a readable storage medium is provided on which a program is stored. When the program is executed by a processor, the steps of the radiation detection method in any of the above embodiments are implemented, thereby having all the beneficial technical effects of the radiation detection method in any of the above embodiments.

[0140] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0141] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-readable program code.

[0142] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0143] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0144] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0145] An embodiment of the present application further provides a computer program product, which includes computer software instructions. When the computer software instructions are executed on a processing device, the processing device executes a process of a radiation detection method.

[0146] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server or a data center that includes one or more available media integration. The available medium can be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.

[0147] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0148] In the several embodiments provided in the present application, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units 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 an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0149] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0150] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0151] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application 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, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0152] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0153] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0154] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.

Claims

1. A radiation detection system, characterized in that: include: a power supply and a radiation detector, wherein a first end of the radiation detector is connected to the power supply; a particle counting circuit, the particle counting circuit being connected to the second end of the radiation detector, the particle counting circuit being used to collect a first signal output by the radiation detector; a current integration circuit, wherein the particle counting circuit is connected to the second end of the radiation detector, and the particle counting circuit is used to collect a second signal output by the radiation detector; A temperature sensor, used to collect the temperature of the space where the radiation detector is located and obtain a temperature signal; A processor is connected to the particle counting circuit, the current integration circuit and the temperature sensor respectively, and is used to determine the spatial radiation information of the space where the radiation detector is located according to the first signal, the second signal and the temperature signal.

2. The radiation detection system according to claim 1, characterized in that: The spatial radiation information includes spatial particle flux, The processor is used to determine the spatial particle flux based on the first signal and the second signal.

3. The radiation detection system according to claim 2, characterized in that: The processor is configured to determine a first particle flux based on the first signal, and to determine a second particle flux based on the second signal; The processor is further used to perform data supplementation processing on the first particle flux according to the second particle flux to obtain the spatial particle flux.

4. The radiation detection system according to claim 1, characterized in that: The particle counting circuit is used to collect the current pulse amplitude and particle energy of the radiation detector; The particle counting circuit is further configured to determine the first signal based on the current pulse amplitude and the particle energy.

5. The radiation detection system according to claim 1, characterized in that: The current integration circuit is used to collect the current integration value of the radiation detector; The current integration circuit is further configured to determine the second signal according to the current integration value.

6. The radiation detection system according to claim 1, characterized in that: The particle counting circuit includes a first capacitor, a second capacitor and a first operational amplifier; One end of the first capacitor is connected to the second end of the radiation detector, and the other end is connected to the first end of the first operational amplifier; One end of the second capacitor is connected to the first end of the first operational amplifier, and the other end of the second capacitor is connected to the second end of the first operational amplifier. The second end of the first operational amplifier is connected to the processor.

7. The radiation detection system according to claim 1, characterized in that: The current integration circuit includes a third capacitor, a second operational amplifier, a third operational amplifier, a first switch, a second switch and a counter; A first terminal of the second operational amplifier is connected to a second terminal of the radiation detector, a second terminal of the second operational amplifier is connected to one terminal of the second switch, and the other terminal of the second switch is grounded; One end of the third capacitor is connected to the first end of the second operational amplifier, and the other end of the third capacitor is connected to the second end of the second operational amplifier; The first end of the third operational amplifier is connected to the second end of the second operational amplifier, the second end of the third operational amplifier is used to access a preset voltage, and the third end of the third operational amplifier is connected to one end of the counter; One end of the first switch is connected to the second end of the radiation detector, and the other end of the first switch is connected to the processor.

8. The radiation detection system according to any one of claims 1 to 7, characterized in that: The processor is used for calibrating the first signal according to the temperature signal to obtain an updated first signal; The processor is further configured to determine the spatial radiation information according to the updated first signal and the second signal.

9. A radiation detection method, characterized in that: Applied to a radiation detection system, the radiation detection system being the radiation detection system according to any one of claims 1 to 8, the method comprising: collecting a first signal output by the radiation detector through a particle counting circuit; Collecting a second signal output by the radiation detector through a current integration circuit; The temperature of the space where the radiation detector is located is collected by a temperature sensor to obtain a temperature signal; Spatial radiation information of a space where the radiation detector is located is determined according to the first signal, the second signal and the temperature signal.

10. The radiation detection method according to claim 9, characterized in that: Determining spatial radiation information of a space where the radiation detector is located according to the first signal, the second signal, and the temperature signal includes: calibrating the first signal according to the temperature signal to obtain an updated first signal; The spatial radiation information is determined according to the updated first signal and the second signal.

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