航天器內(nèi)環(huán)境模擬技術(shù)
Simulation technology for space vehicle's inner radiation environment
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摘要: 在載人航天中，航天員的輻射危險性是必須受到重視的問題。航天器的內(nèi)環(huán)境是一個復(fù)雜的復(fù)合場，受外部輻射場和屏蔽材料等多種因素的影響，單一的探測技術(shù)很難探測得到內(nèi)部輻射場的性質(zhì)特點，而且無法對輻射危害進行評估。文章從射線與物質(zhì)相互作用的角度出發(fā)，對NASA所用航天器內(nèi)環(huán)境的模擬技術(shù)進行了介紹，并介紹了根據(jù)我國國情已往開展的相關(guān)研究工作，包括在Geant4軟件包的基礎(chǔ)上，將射線與物質(zhì)相互作用的處理方法進行擴展，開發(fā)新的軟件，編制SRP（Space Radiation Protection）程序等。Abstract: In manned space missions, astronauts in space vehicle are exposed to radiations in a level far exceeding that on earth. The complexities of radiation environment inside space vehicle depend on radiation environment outside of space vehicle, shielding materials and so on. Computer simulation is an effective way to minimize and forecast the hazards from space radiation. In this paper, we review the computer simulations carried out by NASA and our related research work in China.
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