面积对Kapton材料表面充放电影响的实验研究
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- 英文论文题名：Experimental study of the influence of Kapton material area on the surface charge-discharge
- 论文作者：刘海波 ; 杨生胜 ; 秦晓刚 ; 汤道坦 ; 柳青 ; 颜则东
- 英文论文作者：LIU Hai-bo ; YANG Sheng-sheng ; QIN Xiao-Gang ; TANG Dao-tan ; LIU Qing ; YAN Ze-Dong ; Science and Technology on Vacuum Technology and Physics Laboratory ; Lanzhou Institute of Space Technology Physics
- 年：2015
- 作者机构：兰州空间技术物理研究所真空技术与物理重点实验室;
- 论文关键词：Kapton材料 ; 面积 ; 充电电位 ; 电位梯度 ; 放电特性 ; 泄露电流
- 英文论文关键词：Kapton material ; area ; charging potential ; potential gradient ; discharging characteristic ; surface leakage current
- 会议召开时间：2015-08-12
- 会议录名称：静电放电：从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议论文集
- 语种：中文
- 分类号：V419;V445
- 学会代码：WLJD
- 会议名称：静电放电 ; 从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议
- 会议地点：中国河北石家庄
- 主办单位：中国物理学会静电专业委员会
- 学会名称：中国物理学会静电专业委员会
- 页数：6
- 文件大小：1030k
- 原文格式：D
- 会议级别：全国
摘要
空间等离子环境下,航天器表面材料的充放电现象会引起航天器运行故障,严重时会使航天器无法完成在轨运行任务。航天器表面Kapton材料的面积不同,使得其表现的充放电特性也不同。本文对不同面积Kapton材料的充放电特性进行研究,得出不同面积下Kapton材料的充放电特性规律,为航天器带电防护设计和放电危害评估提供数据支持。采用能量为25keV,束流密度为2.5nA/cm~2的电子对不同面积(4~225cm~2)正方形Kapton材料进行辐照实验,测量材料表面电位分布和放电波形。通过对实验数据进行理论分析,得出面积对Kapton材料充放电特性的影响。随着Kapton材料面积升高,最高充电电位、最大电位梯度、放电脉冲电流峰值、放电持续时间、放电电荷损失量和放电频率都相应增大。对实验结果进行理论分析,得出Kapton材料边缘处的表面漏电流的作用引起了Kapton材料各充放电参数值随着面积增大而升高。通过减小材料面积和增大边缘处表面漏电流作用可减小Kapton材料表面充放电对航天器的危害。
In the space plasma environment,charge and discharge phenomenon of spacecraft surface dielectric materials will cause the spacecraft operation failure,when the charge and discharge phenomenon is serious,the spacecraft will can not complete the orbiting task.Different areas of the spacecraft surface material make the surface charge-discharge characteristics different.In this paper,charge-discharge characteristics of the different areas of the material are researched.To providing data support for the spacecraft charging protection and discharge hazard assessment.Using electronic of 25ke V,beam density 2.5n A/cm~2,we made the ground simulation experiment on Kapton material of different areas(4~225cm~2).Through the experiment,surface potential and the discharge waveform of Kapton material was measured.Through the theoretical analysis of the experimental data,we get the influence of area on the material charge and discharge characteristics.With the increasing material area,highest charging potential,maximum potential gradient,discharge peak current,discharge pulse duration,discharge released charge and the discharge frequency increase accordingly.Through theoretical analysis with the result of the experiment,it is concluded that the edge surface leakage current of Kapton material caused the charge and discharge parameter values of Kapton material to increased with increment of the area in this paper.Through increasing effect of the edge surface leakage current and decreasing the material area,we can reduce the harm of the surface charge and discharge of Kapton material to spacecraft.
In the space plasma environment,charge and discharge phenomenon of spacecraft surface dielectric materials will cause the spacecraft operation failure,when the charge and discharge phenomenon is serious,the spacecraft will can not complete the orbiting task.Different areas of the spacecraft surface material make the surface charge-discharge characteristics different.In this paper,charge-discharge characteristics of the different areas of the material are researched.To providing data support for the spacecraft charging protection and discharge hazard assessment.Using electronic of 25ke V,beam density 2.5n A/cm~2,we made the ground simulation experiment on Kapton material of different areas(4~225cm~2).Through the experiment,surface potential and the discharge waveform of Kapton material was measured.Through the theoretical analysis of the experimental data,we get the influence of area on the material charge and discharge characteristics.With the increasing material area,highest charging potential,maximum potential gradient,discharge peak current,discharge pulse duration,discharge released charge and the discharge frequency increase accordingly.Through theoretical analysis with the result of the experiment,it is concluded that the edge surface leakage current of Kapton material caused the charge and discharge parameter values of Kapton material to increased with increment of the area in this paper.Through increasing effect of the edge surface leakage current and decreasing the material area,we can reduce the harm of the surface charge and discharge of Kapton material to spacecraft.
引文
[1]陈益峰,杨生胜,秦晓刚等.介质材料带电对二次电子发射影响的研究[J].真空与低温,2010,9;167-170.
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[3]Balmain.K.G.Dubois.G.R.Surface Discharges on Teflon,Mylar and Kapton[J].IEEE Transactions on Nuclear Science,1979,26(6):5146-5151.
[4]Balmain.K.G.Scaling Law and Edge Effects for Polymer Surface Discharges.Spacecraft Charging Technology[C],1978:646-656.
[5]Paul R.Aron and John V.Staskus.Area Scaling Investigations of Charging Phenomena.Spacecraft Charging Technology[C],1978:485-506.
[2]Balmain,K.G.,Kremer,P.C.and Cuchanski,M.Charged Area Effects on Spacecraft Dielectric Arc Discharges.Proceedings of 1978 Symposium on the Effect of the Ionosphere on Space and Terrestrial Systems.Office of Naval Research and Naval Research Laboratory,1978,4:4-5.
[3]Balmain.K.G.Dubois.G.R.Surface Discharges on Teflon,Mylar and Kapton[J].IEEE Transactions on Nuclear Science,1979,26(6):5146-5151.
[4]Balmain.K.G.Scaling Law and Edge Effects for Polymer Surface Discharges.Spacecraft Charging Technology[C],1978:646-656.
[5]Paul R.Aron and John V.Staskus.Area Scaling Investigations of Charging Phenomena.Spacecraft Charging Technology[C],1978:485-506.