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质子辐照对极紫外波段滤光片透过率的影响
引用本文:范鲜红,陈波,关庆丰.质子辐照对极紫外波段滤光片透过率的影响[J].强激光与粒子束,2009,21(6).
作者姓名:范鲜红  陈波  关庆丰
作者单位:1. 中国科学院 长春光学精密机械与物理研究所 应用光学国家重点实验室, 长春 130033;2. 中国科学院 研究生院, 北京100039; 3. 江苏大学 材料学院, 江苏 镇江212013
基金项目:国家自然科学基金项目 
摘    要: 为了检验应用在极紫外波段空间太阳望远镜上Al滤光片在空间辐照环境下透过率的变化情况,用能量100 keV,剂量为6×1011/mm2的质子束对其进行辐照,利用透射电子显微镜分析了质子辐照前后滤光片的微观结构。实验结果表明:由于质子辐照使滤光片受质子侵蚀后,Al原子被击出发生质量损失,表面形态发生了变化,造成滤光片变薄,从而导致透过率由辐照前的12.1%增大到15.0%,且滤光片的薄厚分布不均匀使透过率曲线出现了次级峰,造成其光学性能的退化。

关 键 词:质子辐照  滤光片  透过率  极紫外波段
收稿时间:1900-01-01;

Effect of proton irradiation on transmittance of AI filter at EUV waveband
Fan Xianhong,Chen Bo,Guan Qingfeng.Effect of proton irradiation on transmittance of AI filter at EUV waveband[J].High Power Laser and Particle Beams,2009,21(6).
Authors:Fan Xianhong  Chen Bo  Guan Qingfeng
Institution:1. State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China;3. College of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China
Abstract:Part of low-earth orbit’s space radiation environment was simulated to investigate the influence on the transmittance change of the aluminum filter used on the space solar telescope in extreme-ultraviolet(EUV) waveband. The transmittance was measured before and after proton irradiation with energy of 100 keV and dose of 6×1011/mm2. And the microstructures of aluminum filter were investigated by transmission electron microscopy(TEM). The experimental results show that the transmittance of filter increases from 12.1% to 15.0% because of the thickness decrease of filter after proton irradiation, and the thickness of the filter beoames inhomogeneous, resulting in the optical performance degradation of the filter and sub-peak in the transmittance curve. The reason is tha
Keywords:filter  transmittance  extreme-ultraviolet waveband
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