| 质子辐照对极紫外波段滤光片透过率的影响 |
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| 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(06). |
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| 作者姓名： | 范鲜红 陈波 关庆丰 |
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| 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 1 30033;;;2.中国科学院 研究生院, 北京1 00039;;;3.江苏大学 材料学院, 江苏 镇江21 201 3 |
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| 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。
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| 关 键 词： | 质子辐照 滤光片 透过率 极紫外波段 |
Effect of proton irradiation on transmittance of Al filter at EUV waveband |
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| fan xianhong, chen bo, guan qingfeng. Effect of proton irradiation on transmittance of Al filter at EUV waveband[J]. High Power Laser and Particle Beams, 2009, 21. |
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| Authors: | fan xianhong chen bo guan qingfeng |
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| Affiliation: | 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 |
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| 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 |
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| Keywords: | proton irradiation filter transmittance extreme-ultraviolet waveband |
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