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Medical Implications of Space Radiation Exposure Due to Low-Altitude Polar Orbits

机译：空间辐射医学的影响由于低空极地轨道

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INTRODUCTION: Space radiation research has progressed rapidly in recent years, but there remain large uncertainties in predicting and extrapolating biological responses to humans. Exposure to cosmic radiation and solar particle events (SPEs) may pose a critical health risk to future spaceflight crews and can have a serious impact on all biomedical aspects of space exploration. The relatively minimal shielding of the cancelled 1960s Manned Orbiting Laboratory (MOL) program's space vehicle and the high inclination polar orbits would have left the crew susceptible to high exposures of cosmic radiation and high dose-rate SPEs that are mostly unpredictable in freguency and intensity.METHODS: In this study, we have modeled the nominal and off-nominal radiation environment that a MOL-like spacecraft vehicle would be exposed to during a 30-d mission using high performance, multicore computers.RESULTS: Projected doses from a historically large SPE (e.g., the August 1972 solar event) have been analyzed in the context of the MOL orbit profile, providing an opportunity to study its impact to crew health and subsequent contingencies.DISCUSSION: It is reasonable to presume that future commercial, government, and military spaceflight missions in low-Earth orbit (LEO) will have vehicles with similar shielding and orbital profiles. Studying the impact of cosmic radiation to the mission's operational integrity and the health of MOL crewmembers provides an excellent surrogate and case-study for future commercial and military spaceflight missions.
机译：作品简介:研究空间辐射近年来发展迅速,但存在保持预测和中巨大的不确定性推断生物对人类的反应。暴露在宇宙射线和太阳粒子事件(spe)可能构成健康风险至关重要未来的航天工作人员和会严重对空间的所有生物医学方面的影响探索。1960年代取消载人轨道实验室(摩尔)项目的太空交通工具和高极地轨道倾角会离开了船员容易受到高曝光的宇宙辐射和高剂量率主要是spe不可预知的freguency和强度。在这项研究中,我们有名义和建模偏移MOL-like辐射环境在航天器工具将暴露30 d任务使用高性能、多核电脑。历史上大SPE(例如,1972年8月太阳能事件)的上下文中进行了分析摩尔轨道配置文件,提供了一个机会研究人员健康和后续的影响的突发事件。假定未来的商业、政府和在近地轨道的军事航天任务(狮子座)将有汽车类似的屏蔽和轨道配置文件。宇宙辐射到任务的操作完整性和摩尔船员的健康提供了一个优秀的代理和案例研究未来的商业和军事航天任务。

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