Critical analysis of active shielding methods for space radiation protection
Critical analysis of active shielding methods for space radiation protection
复制标题
空间辐射防护主动屏蔽方法的批判分析
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
L. Townsend
中科院分区：
文献类型：
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作者：
L. Townsend
在过去的几十年里，不时有人提出利用电磁场配置的有源方法进行设计，以保护航天器机组人员免受有害的空间辐射。针对太阳高能粒子事件质子或银河系宇宙射线或两者兼而有之的防护设计已经被提出。这些分析往往是基于关于入射辐射光谱或与其相关的辐射风险和限度的简化甚至不正确的假设。有时，这些设计的支持者对科学界和工程界克服现有技术差距的能力做出非常乐观的假设，这些差距是将他们的设计从纸上转移到实践中所需的。本文对近几十年来提出的各种有源屏蔽方法进行了回顾和评述。给出了所提出的方法的优缺点。描述了在分析它们的屏蔽效能时存在的缺陷。
From time to time over the past several decades, designs utilizing active methods involving electromagnetic field configurations have been proposed for the purpose of protecting spacecraft crews from harmful space radiations. Designs affording protection from either solar energetic particle event protons or galactic cosmic rays or both have been proposed. Often these analyses are predicated upon simplified or even incorrect assumptions regarding the incident radiation spectra or their associated radiation risks and limits. At times the proponents of these designs make very optimistic assumptions about the abilities of the scientific and engineering communities to overcome existing technology gaps needed to move their designs from paper to practice. In this paper, various active shield methods proposed over the past several decades are reviewed and critiqued. Advantages and disadvantages of the proposed methods are presented. Shortcomings in the analyses of their shielding efficacies, where they exist, are described.