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	Detection of helium in irradiated fe9cr alloys by coincidence doppler broadening of slow positron annihilation
	Cao, Xingzhong1; Zhu, Te1,2; Jin, Shuoxue1; Kuang, Peng1; Zhang, Peng1; Lu, Eryang1; Gong, Yihao1; Guo, Liping3; Wang, Baoyi1,2
刊名	Applied physics a-materials science & processing
	2017-03-01
卷号	123期号:3页码:4
ISSN号	0947-8396
DOI	10.1007/s00339-017-0827-3
通讯作者	Cao, xingzhong(caoxzh@ihep.ac.cn) ; Wang, baoyi(wangboy@ihep.ac.cn)
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.
WOS关键词	DEFECTS ; SPECTRA ; HE+
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000394314600028
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2176777
专题	高能物理研究所
通讯作者	Cao, Xingzhong; Wang, Baoyi
作者单位	1.Chinese Acad Sci, Inst High Energy Phys, Multidiscipline Res Ctr, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100039, Peoples R China 3.Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Cao, Xingzhong,Zhu, Te,Jin, Shuoxue,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):4.
APA	Cao, Xingzhong.,Zhu, Te.,Jin, Shuoxue.,Kuang, Peng.,Zhang, Peng.,...&Wang, Baoyi.(2017).Detection of helium in irradiated fe9cr alloys by coincidence doppler broadening of slow positron annihilation.Applied physics a-materials science & processing,123(3),4.
MLA	Cao, Xingzhong,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):4.

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