Space environment radiation simulation device

Abstract

The invention discloses a space environment radiation simulation device, which comprises an electron accelerator main body, an electron gun, a first accelerating tube, section beam diaphragm, a sweeping surface magnet and a radiation chamber. A radiation platform is installed in the radiation chamber, and a first molecular pump is further installed on the radiation chamber. The space environment radiation simulation device solves the problems that only a bunch of unidirectional-scanning electron beams can be provided in the prior art, and the radiation is directly carried out in the atmospheric environment. The space environment radiation simulation device leads the radiation platform to be placed in the radiation chamber which is nearly vacuum for testing, beam current output of an electron accelerator can change in a wide range, comprehensive state simulation and accurate parameter measurement can be achieved, and the problem of electron beam energy spectrum dispersion can be solved.

Description

technical field [0001] The invention relates to a space environment radiation simulation device, which belongs to the technical field of radiation simulation. Background technique [0002] Artificial satellites and spacecraft themselves, as well as the various instruments and tools they carry, need to work in space for a long time. Therefore, the materials and components used in them need to be selected or specially trial-manufactured, and confirmed through space environment tests to ensure their reliability. [0003] Space environment radiation simulation tests were previously implemented on small general-purpose industrial electron accelerators. This kind of equipment can only provide a beam of electrons scanned in one direction, and the irradiation is carried out directly in the atmospheric environment. Except for the adjustable beam intensity, the rest of the test conditions are uncontrollable, which is the simplest method. [0004] The test is carried out in the atmo...

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Problems solved by technology

[0004] The test is carried out in the atmosphere, and the test and test results will be interfered by the air, especially oxygen and ozone, so it is impossible to obtain accurate test conclusions. The cross-section of the unidirectional scanning electron beam forms an approximate Gaussian distribution, which is very uneven and cannot realize the uniformity of the sample. Uniform irradiation, after the electron beam is scattered by the air, the energy spectrum is dispersed, so it is impossible to achieve single-energy irradiation, and the irradiation process cannot add other parameters, such as temperature, light and the influence of other ions, etc. The beam current of the accelerator is adjustable The scope is narrow and cannot meet the needs of a wider range of experiments

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