High-energy proton energy spectrum calculation method and calculation system

A high-energy proton and calculation method technology, applied in the field of high-energy proton energy spectrum calculation method and calculation system, can solve the problems of satellite protection inconvenience, achieve high accuracy, reduce waste, and simple method

Pending Publication Date: 2021-07-23
北京软奇科技有限公司
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AI Technical Summary

Problems solved by technology

At present, there is no method and device for directly detecting high-energy proton flux in China, which makes the protection of satellites very inconvenient

Method used

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  • High-energy proton energy spectrum calculation method and calculation system
  • High-energy proton energy spectrum calculation method and calculation system
  • High-energy proton energy spectrum calculation method and calculation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This embodiment provides a high-energy proton spectrum calculation method, such as figure 1 As shown, the method includes the following steps:

[0052] Selecting a historical period, obtaining the following historical data of the historical period: high-energy proton spectrum, daily average value of ground cosmic ray intensity and high-energy proton spectrum parameters;

[0053] Analyzing the high-energy proton spectrum in the historical period to obtain a first relational expression;

[0054] Analyzing the daily average value of ground cosmic ray intensity and high-energy proton spectrum parameters in the historical period to obtain the second relational expression;

[0055] Measure the daily average of the intensity of cosmic rays on the ground during the observation period;

[0056] According to the daily average value of the ground cosmic ray intensity measured during the observation period and the first relational expression and the second relational expression, ...

example 1

[0118] By downloading the ground cosmic ray intensity observed by Oulu on September 1, 2017, which was 6553, and substituting this data into the above formula (2), the key parameter F of the space high-energy proton energy spectrum can be calculated 0 = 0.025.

[0119] The above calculation result F 0 =0.025 is substituted into formula (1), and the differential flux of the four energy points corresponding to the high-energy particle detection channel of the GOES-13 satellite on September 1, 2017 is obtained. The comparison with the satellite detection results of that day is shown in Table 2.

[0120] In the evaluation of the calculation accuracy of high-energy proton spectroscopy, the relative flux error is usually used for evaluation, and the formula is:

[0121]

[0122] where err is the relative error of the high-energy proton flux; f 0 Indicates the observed value of the differential flux of a certain energy of a satellite in the middle orbit, f c Calculates the valu...

example 2

[0127] By downloading the ground cosmic ray intensity observed by Oulu on June 15, 2015, which was 6130, and substituting this data into the above formula (2), the key parameter F of the space high-energy proton spectrum can be calculated 0 = 0.018.

[0128] The above calculation result F 0 =0.018 is substituted into formula (1), and the differential flux of the four energy points corresponding to the high-energy particle detection channel of the GOES-13 satellite on June 15, 2015 is obtained. The comparison with the satellite detection results of that day is shown in Table 3. Also calculate the relative error between the calculated value and the observed value of the high-energy proton spectrum of the observation date, and the relative error is shown in the last row of Table 3.

[0129] Table 3 Calculation results and error analysis results of high-energy proton spectroscopy on June 15, 2015 (UT)

[0130] 700-869MeV 510-700MeV 420-510MeV 350-420MeV me...

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Abstract

The invention provides a high-energy proton energy spectrum calculation method and system. The method comprises the following steps: selecting a historical time period, and acquiring the following historical data of the historical time period: a high-energy proton energy spectrum, a ground cosmic ray intensity daily mean value, and a high-energy proton energy spectrum parameter; analyzing the high-energy proton energy spectrum in the historical time period to obtain a first relational expression; analyzing the daily mean value of the ground cosmic ray intensity and the high-energy proton spectrum parameter in the historical period to obtain a second relational expression; measuring a daily mean value of the ground cosmic ray intensity in an observation period; and according to the daily mean value of the ground cosmic ray intensity measured in the observation time period, the first relational expression and the second relational expression, acquiring the high-energy proton energy spectrum in the observation time period. According to the method, the high-energy proton energy spectrum can be accurately calculated, external high-energy particle environment information is provided for a high-orbit satellite to accurately calculate the single-particle event probability, the radiation dose of a sensitive device and the like, targeted protection design is facilitated, and technical support is provided for satellite design and space environment guarantee of operation maintenance.

Description

technical field [0001] This application relates to the field of space particle observation, and specifically relates to a high-energy proton spectrum calculation method and a calculation system. Background technique [0002] Single event event is an important factor that threatens the safe operation of satellites in orbit. It is high-energy charged particles bombarding microelectronic chips, causing changes in the state of logic circuits, thereby affecting the normal operation of microelectronic devices, and even causing satellite failures in severe cases. Most of the space is high-energy protons. To assess the threat of high-energy particles to satellites, it is necessary to accurately obtain the flux and energy spectrum of high-energy protons, as well as their characteristic changes at different solar activity levels. However, to obtain high-energy proton detection data requires continuous spaceborne instrument detection, and real-time proton flux detection data with energ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/25G01T1/36G06F119/12
CPCG01T1/36G06F30/25G06F2119/12
Inventor 杨骋温学智
Owner 北京软奇科技有限公司
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