| 阈值温度,临界能量与航天器带电特性 |
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| 引用本文： | 吴清松,王柏懿.阈值温度,临界能量与航天器带电特性[J].中国空间科学技术,1993,13(4):44-51,69. |
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| 作者姓名： | 吴清松 王柏懿 |
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| 作者单位： | 中国科学技术大学 合肥
(吴清松，徐燕侯)，中国科学院力学研究所 北京(王柏懿) |
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| 摘 要： | 采用加权求和方法确定不同能量入射电子对应不同次级(二次发射和反向散射)电子产率公式,用来计算航天材料高压带电的阈值温度T~* 和临界能量E~*,得到了与观测数据较为接近的临界带电特性。文中进一步阐明运用T~* 和E~* 两个概念,可以定性解释航天器带电的复杂特性。
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| 关 键 词： | 航天器带电 临阈效应 数学模型 |
EFFECT OF THRESHOLD TEMPERATURE AND CRITICAL ENERGY FOR SPACECRAFT CHARGING |
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| Wu Qingsong Xu Yanhou.EFFECT OF THRESHOLD TEMPERATURE AND CRITICAL ENERGY FOR SPACECRAFT CHARGING[J].Chinese Space Science and Technology,1993,13(4):44-51,69. |
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| Authors: | Wu Qingsong Xu Yanhou |
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| Abstract: | In this paper,the yields of secondary electrons(true secon-dary emission and backscattering)for the incident electrons at differentenergy levels are determined by using weighted average,and the thresholdtemperature T* and critical energy E* of spacecraft materials in high-voltage charging are calculated with these results.The characteristics of cri-tical charging are in good agreement with the observed data.It is expoun-ded that the complicated properties of spacecraft charging are truly qua-litatively explained by using the two concepts of T* and E*. |
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| Keywords: | Spacecraft charging Threshold effect Mathematical model Calculation method |
| 本文献已被 CNKI 维普 等数据库收录！ |
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