Structural and optical characterization of SiO2 under irradiation with swift heavy ions

doi:10.1016/j.nimb.2013.10.034

	Structural and optical characterization of SiO2 under irradiation with swift heavy ions
	Song, Y; Zhang, CH; Ma, YZ; Men, YC; Zhang, HQ; Zang, LQ; Gou, J; Yang, YT
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
	2014
卷号	326 期号:326 页码:68-71
关键词	Heavy ion irradiation Color centers Thermal spike model
ISSN号	0168-583X
DOI	10.1016/j.nimb.2013.10.034
英文摘要	SiO2 single crystals irradiated with 600 key, 4 and 5 MeV Kr ions using the 320 kV High Voltage Experimental Platform (IMP, Lanzhou) were investigated with infrared, fluorescence spectroscopes and TEM. In the low-energy regime, single ion tracks are well separated and the damage process is dominated by the formation of simple color centers such as F+ rand F-2 centers. For the high energy ions, the energy density in ion tracks produced at a high stopping power is larger, and consequently the defect concentration increases significantly. At higher defect densities, the distance between single defects is smaller facilitating the aggregation of individual electron center to defect cluster and defect annihilation by recombination of hole and electron centers. The latter process determines the limited efficiency of color-center creation under heavy-ion irradiation. Using the unified thermal spike model, a combination of the elastic collision spike model and the inelastic thermal spike model based on electronic energy losses, it is possible to fully describe the experimental data, which clearly demonstrate a synergy between the nuclear energy loss and the electronic energy loss processes. (c) 2013 The Authors. Published by Elsevier B.V. All rights reserved.
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WOS关键词	PLASTIC-DEFORMATION ; CROSS-SECTION ; FILM ; PARTICLES ; QUARTZ
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000335631300017
内容类型	期刊论文
源URL	[http://ir.impcas.ac.cn/handle/113462/14987]
专题	近代物理研究所_能源材料研究组近代物理研究所_材料研究中心
作者单位	中国科学院近代物理研究所
推荐引用方式 GB/T 7714	Song, Y,Zhang, CH,Ma, YZ,et al. Structural and optical characterization of SiO2 under irradiation with swift heavy ions[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2014,326(326):68-71.
APA	Song, Y.,Zhang, CH.,Ma, YZ.,Men, YC.,Zhang, HQ.,...&Yang, YT.(2014).Structural and optical characterization of SiO2 under irradiation with swift heavy ions.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,326(326),68-71.
MLA	Song, Y,et al."Structural and optical characterization of SiO2 under irradiation with swift heavy ions".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 326.326(2014):68-71.