Detection of helium in irradiated Fe9Cr alloys by coincidence Doppler broadening of slow positron annihilation
文献类型：期刊论文
| 作者 | Guo, LP; Wang, BY ; Zhang P(张鹏); Lu EY(卢二阳); Gong YH(龚毅豪); Wang BY(王宝义); Cao, XZ; Zhu, T; Jin, SX; Kuang, P
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| 刊名 | APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
 |
| 出版日期 | 2017 |
| 卷号 | 123期号:3页码:177 |
| ISSN号 | 0947-8396 |
| DOI | 10.1007/s00339-017-0827-3 |
| 文献子类 | Article |
| 英文摘要 | An element analysis method, coincidence Doppler broadening spectroscopy of slow positron annihilation, was employed to detect helium in ion-irradiated Fe9Cr alloys. Spectra with higher peak to background ratio were recorded using a two-HPGe detector coincidence measuring system. It means that information in the high-momentum area of the spectra can be used to identify helium in metals. This identification is not entirely dependent on the helium concentration in the specimens, but is related to the structure and microscopic arrangement of atoms surrounding the positron annihilation site. The results of Doppler broadening spectroscopy and transmission electron microscopy show that vacancies and dislocations were formed in ion-irradiated specimens. Thermal helium desorption spectrometry was performed to obtain the types of He traps. |
| 电子版国际标准刊号 | 1432-0630 |
| WOS关键词 | DEFECTS ; SPECTRA ; HE+ |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000394314600028 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284722]  |
| 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 | Guo, LP,Wang, BY,Zhang P,et al. Detection of helium in irradiated Fe9Cr alloys by coincidence Doppler broadening of slow positron annihilation[J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,2017,123(3):177. |
| APA | Guo, LP.,Wang, BY.,张鹏.,卢二阳.,龚毅豪.,...&曹兴忠.(2017).Detection of helium in irradiated Fe9Cr alloys by coincidence Doppler broadening of slow positron annihilation.APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,123(3),177. |
| MLA | Guo, LP,et al."Detection of helium in irradiated Fe9Cr alloys by coincidence Doppler broadening of slow positron annihilation".APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 123.3(2017):177. |
入库方式： OAI收割
来源：高能物理研究所
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