Positron annihilation study of vacancy-type defects in fast-neutron-irradiated MgO center dot nAl(2)O(3)
文献类型：期刊论文
| 作者 | Rahman, AMS; 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
 |
| 出版日期 | 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) |
| ISSN号 | 0168-583X |
| DOI | 10.1016/j.nimb.2014.06.002 |
| 文献子类 | Article |
| 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. |
| 电子版国际标准刊号 | 1872-9584 |
| WOS关键词 | MGAL2O4 SPINEL ; RADIATION-DAMAGE ; OXYGEN COMPLEXES ; CRYSTALS ; TEMPERATURES ; DEPENDENCE ; TRANSITION ; CERAMICS ; LIFETIME ; CENTERS |
| WOS研究方向 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000340984900010 |
| 源URL | [https://ir.ihep.ac.cn/handle/311005/304262]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 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 | 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.,Li, ZX.,Cao, XZ.,Wang, BY.,Wei, L.,...&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. |
入库方式： OAI收割
来源：高能物理研究所
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