Method, system and equipment for determining soft error rate of atmospheric neutron radiation test and medium

Abstract

The invention provides an atmospheric neutron radiation test soft error rate determination method, system and device and a medium, and relates to the technical field of electronic device radiation effects, and the method comprises the steps: configuring test parameters for carrying out an atmospheric neutron radiation test on a digital-to-analog conversion circuit DAC device, the test parameters comprise energy values of at least one type of atmospheric neutrons, DAC device parameters and test equipment parameters; acquiring a digital input signal, a digital output signal and an analog output waveform of the DAC device in the test process; according to the digital input signal, the digital output signal and the analog output waveform, whether the DAC device generates a single event effect in the test process is judged, and the soft error rate of the DAC device is determined according to the occurrence frequency of the single event effect. According to the invention, by arranging the ADC device, attenuation and distortion of long-distance transmission of the analog signal are avoided, so that the soft error rate can be evaluated more accurately.

Description

Technical Field

[0001] The present disclosure relates to the technical field of radiation effects of electronic devices, and in particular to a method, system, device and medium for determining a soft error rate in an atmospheric neutron radiation test. Background Art

[0002] Soft Error Rate Testing is a test method used to determine the ability of electronic equipment to resist soft errors. Digital to analog converter (DAC) circuits are widely used in ground electronic systems such as base stations and automotive autonomous driving systems. The soft error rate of DAC circuits restricts the reliable operation of the above-mentioned ground electronic systems and is extremely important to equipment safety and personal safety.

[0003] The existing method for determining the soft error rate of a DAC circuit is based on testing the output signal of the DAC circuit. However, the output signal of the DAC circuit is an analog signal. If the frequency of the analog signal is high, there will be attenuation and distortion of long-line transmission in the atmospheric neutron radiation test, and its impact in the atmospheric neutron radiation cannot be accurately analyzed, and the soft error rate determination accuracy is low. Summary of the invention

[0004] The present invention provides a method, system, device and medium for determining the soft error rate of an atmospheric neutron radiation test, so as to solve the technical problem of low precision in determining the soft error rate of an existing DAC circuit.

[0005] The present disclosure provides a method for determining a soft error rate of an atmospheric neutron radiation test, comprising:

[0006] Configuring test parameters for performing an atmospheric neutron radiation test on a digital-to-analog conversion circuit DAC device, wherein the test parameters include energy values ​​of at least one type of atmospheric neutrons, DAC device parameters, and test equipment parameters;

[0007] Acquire a digital input signal, a digital output signal and an analog output waveform of the DAC device during the test, wherein the digital output signal is obtained by converting the analog output signal of the DAC device by an analog-to-digital conversion circuit ADC device, the ADC device is complementary to the DAC device, and the analog output waveform is obtained by collecting the waveform of the analog output signal of the DAC device by an oscilloscope;

[0008] According to the digital input signal, the digital output signal and the analog output waveform, it is determined whether a single particle effect occurs in the DAC device during the test process, and the soft error rate of the DAC device is determined according to the number of occurrences of the single particle effect.

[0009] In any of the above technical solutions, further, judging whether a single event effect occurs in the DAC device during the test according to the digital input signal, the digital output signal and the analog output waveform and determining the soft error rate of the DAC device according to the number of occurrences of the single event effect comprises:

[0010] Determining a suspected single event effect generated by the DAC device during a test according to the digital input signal and the digital output signal;

[0011] Determining the suspected single event effect as the single event effect or signal distortion according to the simulated output waveform, and counting the number of occurrences of the single event effect;

[0012] According to the number of occurrences of the single event effect, a soft error rate of the DAC device is determined based on a preset software simulation.

[0013] In any of the above technical solutions, further, determining the suspected single event effect generated by the DAC device during the test according to the digital input signal and the digital output signal includes:

[0014] Comparing the digital input signal and the digital output signal, and determining whether the digital input signal and the digital output signal at the same time point are flipped;

[0015] If yes, determine that the DAC device generates a suspected single particle effect at the above time point, record the address of the DAC device corresponding to the suspected single particle effect, update the counter used to count the suspected single particle effect, and record the time parameter and the measurement parameter; if no, directly record the time parameter and the measurement parameter;

[0016] Perform an atmospheric neutron radiation test on the DAC device and monitor the output of the DAC device. If the DAC device has no output, reset the DAC device and perform an atmospheric neutron radiation test on the DAC device. If the DAC device has output, return to the step of comparing the digital input signal and the digital output signal.

[0017] The present disclosure also provides a system for determining soft error rate of atmospheric neutron radiation test, comprising: a centralized processing device, a digital-to-analog conversion circuit DAC device, an analog-to-digital conversion circuit ADC device and an oscilloscope;

[0018] The centralized processing device is used to configure test parameters for performing an atmospheric neutron radiation test on a digital-to-analog conversion circuit DAC device, wherein the test parameters include energy values ​​of at least one type of atmospheric neutrons, DAC device parameters, and test equipment parameters; obtain a digital input signal, a digital output signal, and an analog output waveform of the DAC device during the test; determine whether a single particle effect occurs in the DAC device during the test according to the digital input signal, the digital output signal, and the analog output waveform, and determine a soft error rate of the DAC device according to the number of occurrences of the single particle effect;

[0019] The digital output signal is obtained by converting the analog output signal of the DAC device by the ADC device, the ADC device is complementary to the DAC device, and the analog output waveform is obtained by collecting the waveform of the analog output signal of the DAC device by the oscilloscope.

[0020] In any of the above technical solutions, further, the DAC device, the ADC device and the oscilloscope are arranged in a test space, the centralized processing equipment is arranged in a test space, the test space and the test space are connected by a maze walkway, and a radiation shielding cover is provided on the outer surface of the oscilloscope.

[0021] In any of the above technical solutions, further, the ADC device is connected to the centralized processing equipment via a coaxial cable.

[0022] In any of the above technical solutions, further, it also includes a direct current power supply, which is connected to the centralized processing device and the DAC device respectively, and is used to cooperate with the centralized processing device to provide the digital input signal to the DAC device.

[0023] In any of the above technical solutions, further, it also includes a first computing terminal and a second computing terminal, the first computing terminal is connected to the centralized processing device and the oscilloscope respectively, and the second computing terminal is connected to the centralized processing device and the ADC device respectively.

[0024] In a third aspect, the present disclosure provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the method for determining the soft error rate of an atmospheric neutron radiation test as described in any one of the above are implemented.

[0025] In a fourth aspect, the present disclosure further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method for determining the soft error rate of an atmospheric neutron radiation test as described in any one of the above.

[0026] The beneficial effects of the present disclosure are mainly: by comparing the digital input signal, the digital output signal and the analog output waveform, it is determined whether the DAC device has a single particle effect during the test and the soft error rate of the DAC device is determined according to the number of occurrences of the single particle effect, thereby avoiding the attenuation and distortion of the analog signal during long-distance transmission, thereby more accurately evaluating the soft error rate.

[0027] It should be understood that both the foregoing general description and the following specific embodiments are for the purpose of example and illustration and do not necessarily limit the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. At the same time, the specification and the drawings are used to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 One of the flow charts of the method for determining the soft error rate of the atmospheric neutron radiation test provided by the present disclosure;

[0030] Figure 2 The second flowchart of the method for determining the soft error rate of the atmospheric neutron radiation test provided by the present disclosure;

[0031] Figure 3 A schematic diagram of the structure of a system for determining the soft error rate of an atmospheric neutron radiation test provided by the present disclosure;

[0032] Figure 4 A schematic diagram of the structure of an electronic device provided by the present invention. DETAILED DESCRIPTION

[0033] The technical solution of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0034] Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present disclosure.

[0035] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0037] High-energy cosmic rays interact with nitrogen N and oxygen O in the Earth's atmosphere to produce secondary radiation such as neutrons, protons, electrons, gamma rays, pions, and muons. The atmospheric neutron energy spectrum covers the range from eV to GeV. According to calculations, the neutron flux greater than 10MeV at sea level is about 4×10 -3 neutrons / cm 2 / s. Atmospheric neutrons are highly penetrating due to their lack of charge and are widely distributed on the ground and throughout the atmosphere. Atmospheric neutrons bombard semiconductor devices and integrated circuits, causing single-particle effects, which in turn lead to soft error failures in semiconductor devices and integrated circuits, such as memory cell flips, logic function interruptions, and latches.

[0038] With the development of high-performance electronic chips, especially the emergence of nano-scale integrated circuits, the civil electronic systems used on the ground use advanced electronic chips such as nano-scale integrated circuit chips and large-capacity storage chips, which have greatly increased their sensitivity to single-particle effects induced by atmospheric neutrons. The high integration of ground electronic systems has led to the integration of more transistors per unit area of ​​the chip, and the overall capacity has also increased rapidly. Although the soft error rate per unit storage capacity has decreased, the number of soft errors caused by the single-particle effect of atmospheric neutrons has increased. Therefore, it is extremely important to conduct atmospheric neutron radiation tests on digital-to-analog conversion circuits DAC circuits to determine their soft error rate levels.

[0039] At present, the method for determining the soft error rate of DAC circuits is mainly to conduct atmospheric neutron radiation tests on DAC circuits, connect an oscilloscope to the output port of the DAC circuit for signal monitoring, and determine whether atmospheric neutron single-particle effects occur by analyzing the output signal changes. The incidence of single-particle effects corresponds to the incidence of soft errors. However, due to transmission distortion problems, the waveform changes of the output signal of the DAC circuit may be irregular or it may be impossible to determine whether a single-particle effect occurs, which seriously affects the accuracy of its test.

[0040] To this end, the present invention aims at the attenuation and distortion problems of the long-line transmission of the output signal of the digital-to-analog conversion circuit, and proposes a method that can accurately determine the soft error rate of the atmospheric neutron single particle effect of the digital-to-analog conversion circuit. The method connects complementary analog-to-digital converters to the output signal during the atmospheric neutron radiation test, and compares the digital signal output by the analog-to-digital converter with the digital signal input by the digital-to-analog converter to determine the atmospheric neutron radiation single particle effect, thereby accurately determining the number of single particle effects that occur and obtaining accurate soft error rate data.

[0041] Figure 1 One of the flow charts of the method for determining the soft error rate of the atmospheric neutron radiation test provided by the present disclosure is as follows: Figure 1 As shown, the present disclosure provides a method for determining the soft error rate of an atmospheric neutron radiation test, including steps S100 to S300.

[0042] Step S100, configuring test parameters for performing an atmospheric neutron radiation test on a digital-to-analog conversion circuit DAC device, wherein the test parameters include energy values ​​of at least one type of atmospheric neutrons, DAC device parameters, and test equipment parameters, wherein the test equipment is a device for simulating atmospheric neutrons.

[0043] Specifically, the embodiments of the present disclosure use atmospheric neutrons of 5 or more linear energy transfer (LET) energies to perform atmospheric neutron radiation tests on DAC devices. LET is a physical quantity used to describe the energy transfer efficiency of particles during the penetration of materials. Specifically, LET represents the energy lost by the interaction between particles and matter per unit length, and the unit is usually keV / μm (kiloelectronvolts per micrometer) or MeV / cm (megaelectronvolts per centimeter).

[0044] Step S200, obtaining the digital input signal, digital output signal and analog output waveform of the DAC device during the test process, wherein the digital output signal is obtained by converting the analog output signal of the DAC device by an analog-to-digital conversion circuit ADC device, the ADC device is complementary to the DAC device, and the analog output waveform is obtained by collecting the waveform of the analog output signal of the DAC device by an oscilloscope.

[0045] During the test, the DAC device is first subjected to radiation testing using atmospheric neutrons of a single energy. After completion, another type of atmospheric neutron energy is used for testing, and so on, to obtain the digital input signal, digital output signal, and analog output waveform of the DAC device under various types of atmospheric neutrons, so as to count the number of single particle effects occurring under various LET energies.

[0046] Step S300, judging whether a single particle effect occurs in the DAC device during the test according to the digital input signal, the digital output signal and the analog output waveform, and determining the soft error rate of the DAC device according to the number of occurrences of the single particle effect.

[0047] It is understandable that if a single particle effect occurs in a DAC device, the amplitudes of the digital input signal and the digital output signal will be flipped. Combining the analog output waveform for judgment can effectively improve the accuracy of the judgment. The present disclosure converts the output signal of the DAC device into digital form for transmission, which can avoid the attenuation and distortion of the analog signal during long-distance transmission, thereby more accurately evaluating the soft error rate.

[0048] Figure 2 The second flow chart of the method for determining the soft error rate of the atmospheric neutron radiation test provided by the present disclosure is as follows: Figure 2 As shown, in any of the above technical solutions, further, the digital input signal, the digital output signal and the analog output waveform are used to determine whether a single particle effect occurs in the DAC device during the test and the soft error rate of the DAC device is determined according to the number of occurrences of the single particle effect, including steps S310-S330.

[0049] Step S310: determining a suspected single event effect generated by the DAC device during a test according to the digital input signal and the digital output signal.

[0050] Optionally, determining a suspected single particle effect generated by the DAC device during the test according to the digital input signal and the digital output signal includes steps S311 to S313.

[0051] Step S311, comparing the digital input signal and the digital output signal to determine whether the digital input signal and the digital output signal at the same time point are reversed.

[0052] Step S312: If yes, determine that the DAC device generates a suspected single particle effect at the above time point, record the address of the DAC device corresponding to the suspected single particle effect, update the counter used to count the suspected single particle effect, and record the time parameter and the measurement parameter; if no, directly record the time parameter and the measurement parameter.

[0053] Step S313, performing an atmospheric neutron radiation test on the DAC device and monitoring the output of the DAC device. If the DAC device has no output, resetting the DAC device and performing an atmospheric neutron radiation test on the DAC device. If the DAC device has output, returning to the step of comparing the digital input signal and the digital output signal.

[0054] Step S320, judging the suspected single particle effect as the single particle effect or signal distortion according to the simulated output waveform, and counting the number of occurrences of the single particle effect. If it is a signal distortion, the simulated output waveform is relatively sharp, and the shape of the target simulated output waveform corresponding to the time node of the suspected single particle effect is identified, and the suspected single particle effect is judged as the single particle effect or signal distortion. If it is a signal distortion, it can be ignored. If it is a single particle effect, the counter is incremented by 1.

[0055] Step S330 , determining a soft error rate of the DAC device based on a preset software simulation according to the number of occurrences of the single event effect.

[0056] Space Radiation 5.0 is a software for simulating and analyzing space radiation environment. It can simulate radiation in different space environments, including cosmic rays, solar particle events (SPEs), and Earth radiation belts. It can also evaluate the performance of aerospace vehicles, satellites, or other equipment under space radiation, including the soft error rate (such as SEU) and total dose effect (such as TID) of electronic equipment. In the embodiment of the present disclosure, Space radiation 5.0 software is used for simulation calculation to determine the soft error rate value of the DAC device.

[0057] It can be understood that the present disclosure provides a test method for more accurately evaluating the atmospheric neutron soft error rate of a DAC device, by connecting a complementary ADC device to a DAC device, and by comparing the output digital signal of the ADC device with the input digital signal of the DAC to determine whether a single particle event has occurred, thereby avoiding the attenuation and distortion of the analog signal in long-distance transmission, thereby more accurately evaluating the soft error rate and not being affected by the distortion of the analog signal in long-distance transmission.

[0058] The following is a description of the soft error rate determination system for an atmospheric neutron radiation test provided by the present disclosure. The soft error rate determination system for an atmospheric neutron radiation test described below and the soft error rate determination method for an atmospheric neutron radiation test described above can be referenced to each other.

[0059] Figure 3 The structural diagram of the atmospheric neutron radiation test soft error rate determination system provided by the present disclosure is as follows: Figure 3 As shown, the present disclosure also provides a system for determining the soft error rate of an atmospheric neutron radiation test, comprising: a centralized processing device, a digital-to-analog conversion circuit DAC device, an analog-to-digital conversion circuit ADC device, and an oscilloscope.

[0060] The centralized processing device is used to configure test parameters for performing an atmospheric neutron radiation test on a digital-to-analog conversion circuit DAC device, wherein the test parameters include the energy value of at least one type of atmospheric neutrons, DAC device parameters and test equipment parameters; obtain a digital input signal, a digital output signal and an analog output waveform of the DAC device during the test; determine whether a single particle effect occurs in the DAC device during the test based on the digital input signal, the digital output signal and the analog output waveform, and determine a soft error rate of the DAC device based on the number of occurrences of the single particle effect.

[0061] The digital output signal is obtained by converting the analog output signal of the DAC device by the ADC device, the ADC device is complementary to the DAC device, and the analog output waveform is obtained by collecting the waveform of the analog output signal of the DAC device by the oscilloscope.

[0062] In any of the above technical solutions, further, the DAC device, the ADC device and the oscilloscope are arranged in a test space, the centralized processing equipment is arranged in a test space, the test space and the test space are connected by a maze walkway, and a radiation shielding cover is provided on the outer surface of the oscilloscope.

[0063] Optionally, the test space is a test hall, and the test space is a test hall. The test hall and the measurement hall are connected by a maze walkway, with a distance of about 50 meters, to prevent the emission particles in the test hall from diffusing to the measurement hall and causing radiation damage to equipment and personnel.

[0064] In any of the above technical solutions, further, the ADC device is connected to the centralized processing equipment via a coaxial cable.

[0065] In any of the above technical solutions, further, it also includes a direct current power supply, which is connected to the centralized processing device and the DAC device respectively, and is used to cooperate with the centralized processing device to provide the digital input signal to the DAC device.

[0066] In any of the above technical solutions, further, it also includes a first computing terminal and a second computing terminal, the first computing terminal is connected to the centralized processing device and the oscilloscope respectively, and the second computing terminal is connected to the centralized processing device and the ADC device respectively.

[0067] As a preferred embodiment, the centralized processing device is a host computer, the first computing terminal is computer 1, and the second computing terminal is computer 2. Correspondingly, the host computer and the DC power supply provide input electrical signals to the input port of the DAC device, and the analog output port of the DAC device is connected to the input analog port of the ADC device. At the same time, the output port is connected to an oscilloscope, and the oscilloscope is placed in a radiation shielding cover to reduce the radiation it is exposed to. The output digital signal of the ADC device is transmitted to the computer 1 in the measurement hall through a coaxial cable, and is compared with the digital signal input by the DAC device, and it is determined by digital comparison whether a single particle event has occurred. The comparison data is also compared with the oscilloscope waveform collected by computer 2 to determine the relationship between the output signal and the comparison data change, so as to determine whether a single particle event has occurred or a small distortion of the signal has occurred.

[0068] It can be understood that the system for determining the soft error rate of an atmospheric neutron radiation test provided by the present disclosure has a technical effect corresponding to the method for determining the soft error rate of an atmospheric neutron radiation test, and the embodiments of the present disclosure will not be elaborated on this.

[0069] Figure 4 is a schematic diagram of the structure of the electronic device provided by the present disclosure, such as Figure 4As shown, the electronic device may include: a processor (processor) 410, a communication interface (Communications Interface) 420, a memory (memory) 430 and a communication bus 440, wherein the processor 410, the communication interface 420, and the memory 430 communicate with each other through the communication bus 440. The processor 410 can call the logic instructions in the memory 430 to execute the method for determining the soft error rate of the atmospheric neutron radiation test, which method includes: configuring the test parameters for the atmospheric neutron radiation test of the digital-to-analog conversion circuit DAC device, the test parameters including the energy value of at least one type of atmospheric neutrons, DAC device parameters and test equipment parameters; obtaining the digital input signal, digital output signal and analog output waveform of the DAC device during the test, the digital output signal is obtained by converting the analog output signal of the DAC device by the analog-to-digital conversion circuit ADC device, the ADC device is complementary to the DAC device, and the analog output waveform is obtained by waveform acquisition of the analog output signal of the DAC device by an oscilloscope; according to the digital input signal, the digital output signal and the analog output waveform, determining whether the DAC device has a single particle effect during the test and determining the soft error rate of the DAC device according to the number of occurrences of the single particle effect.

[0070] In addition, the logic instructions in the above-mentioned memory 430 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present disclosure is essentially or the part that contributes to the prior art or the 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 method described in each embodiment of the present disclosure. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), disk or optical disk and other media that can store program codes.

[0071] On the other hand, the present disclosure also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the method for determining the soft error rate of an atmospheric neutron radiation test provided by the above-mentioned embodiments, the method including: configuring test parameters for performing an atmospheric neutron radiation test on a digital-to-analog conversion circuit DAC device, the test parameters including the energy value of at least one type of atmospheric neutrons, DAC device parameters and test equipment parameters; obtaining a digital input signal, a digital output signal and an analog output waveform of the DAC device during the test, the digital output signal being obtained by converting the analog output signal of the DAC device by an analog-to-digital conversion circuit ADC device, the ADC device being complementary to the DAC device, and the analog output waveform being obtained by waveform acquisition of the analog output signal of the DAC device by an oscilloscope; judging whether a single particle effect occurs in the DAC device during the test according to the digital input signal, the digital output signal and the analog output waveform, and determining the soft error rate of the DAC device according to the number of occurrences of the single particle effect.

[0072] On the other hand, the present disclosure also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the method for determining the soft error rate of an atmospheric neutron radiation test provided in the above-mentioned embodiments, the method comprising: configuring test parameters for performing an atmospheric neutron radiation test on a digital-to-analog conversion circuit DAC device, the test parameters comprising energy values ​​of at least one type of atmospheric neutrons, DAC device parameters and test equipment parameters; obtaining a digital input signal, a digital output signal and an analog output waveform of the DAC device during the test, the digital output signal being obtained by converting the analog output signal of the DAC device by an analog-to-digital conversion circuit ADC device, the ADC device being complementary to the DAC device, and the analog output waveform being obtained by waveform acquisition of the analog output signal of the DAC device by an oscilloscope; determining whether a single particle effect occurs in the DAC device during the test according to the digital input signal, the digital output signal and the analog output waveform, and determining the soft error rate of the DAC device according to the number of occurrences of the single particle effect.

[0073] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0074] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure 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 replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A method for determining the soft error rate of an atmospheric neutron radiation test, characterized in that: include: Configuring test parameters for performing an atmospheric neutron radiation test on a digital-to-analog conversion circuit DAC device, wherein the test parameters include energy values ​​of at least one type of atmospheric neutrons, DAC device parameters, and test equipment parameters; Acquire a digital input signal, a digital output signal and an analog output waveform of the DAC device during the test, wherein the digital output signal is obtained by converting the analog output signal of the DAC device by an analog-to-digital conversion circuit ADC device, the ADC device is complementary to the DAC device, and the analog output waveform is obtained by collecting the waveform of the analog output signal of the DAC device by an oscilloscope; According to the digital input signal, the digital output signal and the analog output waveform, it is determined whether a single particle effect occurs in the DAC device during the test process, and the soft error rate of the DAC device is determined according to the number of occurrences of the single particle effect.

2. The method for determining the soft error rate of atmospheric neutron radiation test according to claim 1, characterized in that: The step of determining whether a single event effect occurs in the DAC device during a test according to the digital input signal, the digital output signal and the analog output waveform and determining a soft error rate of the DAC device according to the number of occurrences of the single event effect comprises: Determining a suspected single event effect generated by the DAC device during a test according to the digital input signal and the digital output signal; Determining the suspected single event effect as the single event effect or signal distortion according to the simulated output waveform, and counting the number of occurrences of the single event effect; According to the number of occurrences of the single event effect, a soft error rate of the DAC device is determined based on a preset software simulation.

3. The method for determining the soft error rate of atmospheric neutron radiation test according to claim 2, characterized in that: The step of determining, according to the digital input signal and the digital output signal, a suspected single event effect generated by the DAC device during the test process includes: Comparing the digital input signal and the digital output signal, and determining whether the digital input signal and the digital output signal at the same time point are flipped; If yes, determine that the DAC device generates a suspected single particle effect at the above time point, record the address of the DAC device corresponding to the suspected single particle effect, update the counter used to count the suspected single particle effect, and record the time parameter and the measurement parameter; if no, directly record the time parameter and the measurement parameter; Perform an atmospheric neutron radiation test on the DAC device and monitor the output of the DAC device. If the DAC device has no output, reset the DAC device and perform an atmospheric neutron radiation test on the DAC device. If the DAC device has output, return to the step of comparing the digital input signal and the digital output signal.

4. A system for determining soft error rate in atmospheric neutron radiation test, characterized in that: Including centralized processing equipment, digital-to-analog conversion circuit DAC devices, analog-to-digital conversion circuit ADC devices and oscilloscopes; The centralized processing device is used to configure test parameters for performing an atmospheric neutron radiation test on a digital-to-analog conversion circuit DAC device, wherein the test parameters include energy values ​​of at least one type of atmospheric neutrons, DAC device parameters, and test equipment parameters; obtain a digital input signal, a digital output signal, and an analog output waveform of the DAC device during the test; determine whether a single particle effect occurs in the DAC device during the test according to the digital input signal, the digital output signal, and the analog output waveform, and determine a soft error rate of the DAC device according to the number of occurrences of the single particle effect; The digital output signal is obtained by converting the analog output signal of the DAC device by the ADC device, the ADC device is complementary to the DAC device, and the analog output waveform is obtained by collecting the waveform of the analog output signal of the DAC device by the oscilloscope.

5. The atmospheric neutron radiation test soft error rate determination system according to claim 4, characterized in that: The DAC device, the ADC device and the oscilloscope are arranged in a test space, the centralized processing device is arranged in a test space, the test space and the test space are connected through a maze walkway, and a radiation shielding cover is arranged on the outer surface of the oscilloscope.

6. The atmospheric neutron radiation test soft error rate determination system according to claim 5, characterized in that: The ADC device is connected to the centralized processing equipment via a coaxial cable.

7. The atmospheric neutron radiation test soft error rate determination system according to claim 4, characterized in that: It also includes a direct current power supply, which is connected to the centralized processing device and the DAC device respectively, and is used to cooperate with the centralized processing device to provide the digital input signal to the DAC device.

8. The system for determining soft error rate of atmospheric neutron radiation test according to any one of claims 4 to 7, characterized in that: It also includes a first computing terminal and a second computing terminal, wherein the first computing terminal is connected to the centralized processing device and the oscilloscope respectively, and the second computing terminal is connected to the centralized processing device and the ADC device respectively.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method for determining the soft error rate of an atmospheric neutron radiation test as described in any one of claims 1 to 3 are implemented.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for determining the soft error rate in an atmospheric neutron radiation test as claimed in any one of claims 1 to 3 are implemented.

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