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材料次级电子发射特性对表面充电影响的数值计算研究

张健 谢爱根 王玲 王铁邦

张健, 谢爱根, 王玲, 王铁邦. 材料次级电子发射特性对表面充电影响的数值计算研究[J]. 空间科学学报, 2012, 32(6): 862-868. doi: 10.11728/cjss2012.06.862
引用本文: 张健, 谢爱根, 王玲, 王铁邦. 材料次级电子发射特性对表面充电影响的数值计算研究[J]. 空间科学学报, 2012, 32(6): 862-868. doi: 10.11728/cjss2012.06.862
ZHANG Jian, XIE Aigen, WANG Ling, WANG Tiebang. Numerical Calculation and Research of the Effects of Secondary Emission Characteristics on Surface Charging[J]. Journal of Space Science, 2012, 32(6): 862-868. doi: 10.11728/cjss2012.06.862
Citation: ZHANG Jian, XIE Aigen, WANG Ling, WANG Tiebang. Numerical Calculation and Research of the Effects of Secondary Emission Characteristics on Surface Charging[J]. Journal of Space Science, 2012, 32(6): 862-868. doi: 10.11728/cjss2012.06.862

材料次级电子发射特性对表面充电影响的数值计算研究

doi: 10.11728/cjss2012.06.862
基金项目: 南京信息工程大学科研基金项目资助(S8108197001)
详细信息
  • 中图分类号: V25

Numerical Calculation and Research of the Effects of Secondary Emission Characteristics on Surface Charging

  • 摘要: 表面充电是最早被人们发现的空间环境效应, 是由空间环境引起的航天器异常和故障的主要诱因之一. 采用较精确的金属二次电子发射公式和局部电流平衡模型, 在无光照的情况下, 对不同表面材料及不同几何形体的航天器表面充电电位进行计算, 并绘制了表面材料的充电电位与最大二次电子发射系数之间的关系曲线. 根据数值计算结果及次级电子发射系数和曲线图得知, 航天器阴面充电电位与表面材料的原子序数、最大二次电子发射系数和入射离子引起的次级发射系数均有关. 该计算对航天器表面材料的选取和设计工艺有一定的参考价值.

     

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出版历程
  • 收稿日期:  2011-07-03
  • 修回日期:  2011-11-20
  • 刊出日期:  2012-11-15

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