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转移轨道空间辐射环境及效应研究
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Abstract:
在各种类型的在轨任务中，转移轨道任务是最复杂的，在任务期间会遭遇复杂的空间环境，对于航天器和航天员都存在巨大的危险。本文针对转移轨道任务中涉及到的四种典型轨道进行模拟，使用MULASSIS程序计算各轨道总电离剂量和非电离剂量。结果表明：转移轨道为高椭圆轨道时卫星需要抵抗超高累积辐射剂量，当屏蔽厚度达到9 mm时对电子的屏蔽效能显著降低。当屏蔽厚度达到3 mm时对质子的屏蔽效能显著降低。本文相关计算结果可以有针对性的对不同类型的轨道任务采取有效的防护措施提供依据。
Among various types of in orbit missions, transfer orbit missions are the most complex, encountering complex space environments during the mission, posing great risks to both spacecraft and astronauts. This article simulates four typical orbits involved in transfer orbit missions and uses the MULASSIS program to calculate the total ionizing dose and non ionizing dose for each orbit. The results indicate that when the transfer orbit is a high elliptical orbit, the satellite needs to resist ultra-high accumulated radiation dose. When the shielding thickness reaches 9 mm, the shielding effectiveness of electrons is significantly reduced. When the shielding thickness reaches 3 mm, the shielding efficiency for protons significantly decreases. The relevant calculation results in this article can provide a basis for taking effective protective measures for different types of orbital missions with targeted measures.
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