Positron annihilation study of vacancy-type defects in fast-neutron-irradiated MgO center dot nAl(2)O(3)
Rahman, AMS; Li ZX(李卓昕); Cao XZ(曹兴忠); Wang BY(王宝义); Wei L(魏龙); Li, ZX; Cao, XZ; Wang, BY; Wei, L; Xu, Q; Atobe, K
刊名NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
2014
卷号335页码:70-73
关键词Neutron irradiation Positron lifetime Coincidence Doppler broadening Vacancy MgO center dot nAl(2)O(3)
学科分类Instruments & Instrumentation; Nuclear Science & Technology; Physics
DOI10.1016/j.nimb.2014.06.002
英文摘要The positron lifetimes of fast-neutron-irradiated MgO center dot nAl(2)O(3) single crystals were measured to investigate the formation of cation vacancies. Al monovacancy was possibly observed in samples irradiated by fast neutrons at ultra-low temperatures. Additionally, vacancy-oxygen complex centers were possibly observed in samples irradiated at higher temperatures and fast neutron fluences. Coincidence Doppler broadening (CDB) spectra were measured to obtain information regarding the vicinity of vacancy-type defects. A peak at approximately 11 x 10(-3) m(0)c was observed, which may be due to the presence of oxygen atoms in the neighborhood of the vacancies. (C) 2014 Elsevier B.V. All rights reserved.
收录类别SCI
WOS记录号WOS:000340984900010
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225227
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
中国科学院高能物理研究所_核技术应用研究中心
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Rahman, AMS,Li ZX,Cao XZ,et al. Positron annihilation study of vacancy-type defects in fast-neutron-irradiated MgO center dot nAl(2)O(3)[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2014,335:70-73.
APA Rahman, AMS.,李卓昕.,曹兴忠.,王宝义.,魏龙.,...&Atobe, K.(2014).Positron annihilation study of vacancy-type defects in fast-neutron-irradiated MgO center dot nAl(2)O(3).NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,335,70-73.
MLA Rahman, AMS,et al."Positron annihilation study of vacancy-type defects in fast-neutron-irradiated MgO center dot nAl(2)O(3)".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 335(2014):70-73.
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