Composite protection method for total radiation dose of orbit space of medium orbit

Abstract

The invention relates to a composite protection method for the total irradiation dose of a medium-orbit orbit space. The composite protection method comprises the following steps: S1, calculating the total irradiation dose of any position of a spacecraft in the medium-orbit orbit space; s2, calculating the energy loss of the protons in the material per unit distance; s3, selecting a shielding material according to a unit distance energy loss rule of protons in the material; and S4, aluminum is covered with the selected shielding material to construct the spacecraft composite shielding material which is used for medium orbit space irradiation protection. The method has the beneficial effects that the reliable protection of the spacecraft is realized at the cost of relatively small mass and volume for the total irradiation dose of the medium orbit space.

Description

【Technical field】 [0001] The invention relates to the field of aerospace technology, in particular to a composite protection method for the total dose of space irradiation in a middle-orbit orbit. 【Background technique】 [0002] The mid-orbit orbit with an altitude of 2000km to 10,000km has the characteristics of "high revisit and permanent residence", and remote sensing satellites in this altitude orbit can have better continuous imaging capabilities. However, because the orbit is in the proton capture zone of the Earth, the high-energy proton flux encountered by the satellite in orbit is significantly higher than that of other commonly used low-Earth satellite orbits. How to improve the satellite's ability to protect the medium-orbit orbital space environment radiation is a difficult point that must be considered in the design and development of satellites. [0003] The mid-orbit orbit is located in the inner belt of the earth's radiation belt, and the penetration ability...

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