Slow positron annihilation study of Al film reflector after proton irradiation

	Slow positron annihilation study of Al film reflector after proton irradiation
	Wei, Q; Liu, H; He, SY; Hao, XP; Wei, L; Hao XP(郝小鹏); Wei L(魏龙)
刊名	ACTA PHYSICA SINICA
	2006
卷号	55 期号:10 页码:5525-5530
关键词	reflector optical property proton irradiation slow positron annihilation
通讯作者	Harbin Inst Technol, Space Mat & Environm Engn Lab, Harbin 150001, Peoples R China ; Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China ; Chinese Acad Sci, Key Lab Nucl Anal Tech, Inst High Energy Phys, Beijing 100049, Peoples R China
英文摘要	The spectral reflectance is measured after 60 keV proton irradiation by the spectrophotometer. The microscopic mechanism of irradiation damage of Al film reflector is studied by the slow positron annihilation technique and X-ray diffraction. The results show that the spectral reflectance of Al film reflectors decreases in the wavelength range of 200-800nm with increasing. proton irradiation fluence and the radiation damage is mainly concentrated on the Al film of the reflector. The implanted protons may fill the defects in Al film layer, thus decreases the electron density of Al film and enhances the interband transition of loose bound electrons. The interband transition can be excited by electromagnetic waves ranging from UV to visible and the spectral reflectance decreases in the corresponding wave band, which eventually results of the degradation of optical property of the reflector.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000241215200091
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240035]
专题	高能物理研究所_多学科研究中心高能物理研究所_核技术应用研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Wei, Q,Liu, H,He, SY,et al. Slow positron annihilation study of Al film reflector after proton irradiation[J]. ACTA PHYSICA SINICA,2006,55(10):5525-5530.
APA	Wei, Q.,Liu, H.,He, SY.,Hao, XP.,Wei, L.,...&魏龙.(2006).Slow positron annihilation study of Al film reflector after proton irradiation.ACTA PHYSICA SINICA,55(10),5525-5530.
MLA	Wei, Q,et al."Slow positron annihilation study of Al film reflector after proton irradiation".ACTA PHYSICA SINICA 55.10(2006):5525-5530.