Displacement damage dose detecting method for spacecraft device

Abstract

The invention discloses a displacement damage dose detecting method for a spacecraft device, which belongs to the technical field of radiation detection in nuclear technology. The method comprises the following steps: scaling a photoelectric coupler integrated with an LED and a PD by using a radiation source to acquire a response curve of the increment of current transmission rate reciprocal of the photoelectric coupler during normalization and the displacement damage dose; then radiating the photoelectric coupler by using a ground displacement damage effect testing and evaluating source to acquire the increment of the current transmission rate reciprocal of the photoelectric coupler; and according to the increment of the current transmission rate reciprocal of the photoelectric coupler during specific radiation, searching the displacement damage dose corresponding to the increment in the response curve so as to detect the displacement damage dose at the moment. The method overcomes the influence of non-ideal single energy and secondary radiation of a general testing simulation source; and compared with the conventional method which only uses the LED to perform displacement damage detection, the testing system is simple and practical, and the error of optical coupling introduction is eliminated.

Description

technical field [0001] The invention relates to a method for detecting displacement damage dose of spacecraft components, which belongs to the technical field of radiation detection in nuclear technology. Background technique [0002] Various electronic devices and optoelectronic devices in aerospace vehicles are easily affected by the space radiation environment. Therefore, the influence of radiation effects on them must be considered when selecting devices at the beginning of spacecraft design to ensure that various components are in the space radiation environment. Able to complete the intended function normally. These electronic devices and optoelectronic devices are exposed to space radiation environment, which will produce displacement damage effect, resulting in the degradation of device performance. Therefore, before it is put into practical use, it must be tested and evaluated for its ability to resist displacement damage. [0003] Since the cosmic space radiation...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a displacement damage dose detection method for spacecraft components in order to solve the problem of displacement damage dose testing when evaluating the ability of various components of the spacecraft to resist displacement damage effects

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