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| 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
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| 2014 | |
| Source Publication | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
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| ISSN | 0168-583X |
| EISSN | 1872-9584 |
| Volume | 335Pages:70-73 |
| Abstract | 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. |
| Keyword | Neutron irradiation Positron lifetime Coincidence Doppler broadening Vacancy MgO center dot nAl(2)O(3) |
| Subject Area | Instruments & Instrumentation; Nuclear Science & Technology; Physics |
| DOI | 10.1016/j.nimb.2014.06.002 |
| Indexed By | SCI ; ADS |
| Language | 英语 |
| WOS ID | WOS:000340984900010 |
| ADS Bibcode | 2014NIMPB.335...70R |
| ADS URL | https://ui.adsabs.harvard.edu/abs/2014NIMPB.335...70R |
| ADS CITATIONS | https://ui.adsabs.harvard.edu/abs/2014NIMPB.335...70R/citations |
| Citation statistics |
Cited Times:6 [ADS]
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| Document Type | 期刊论文 |
| Identifier | http://ir.ihep.ac.cn/handle/311005/225227 |
| Collection | 中国科学院高能物理研究所 |
| Recommended Citation GB/T 7714 | 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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