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Study of gamma irradiation effect on positron annihilation mechanism in PFA
Yang J(杨静); Li ZX(李卓昕); Zhao BZ(赵博震); Yang, J; Li, ZX; Zhao, BZ; Zhang, P; Lu, EY; Zhang, J; Yuan, DQ; Cao, XZ; Yu, RS; Wang, BY; 张鹏(正); Lu EY(卢二阳); Zhang J(张杰); Cao XZ(曹兴忠); Yu RS(于润升); Wang BY(王宝义)
2014
Source PublicationCHEMICAL PHYSICS LETTERS
ISSN0009-2614
EISSN1873-4448
Volume597Pages:26-29
AbstractGamma irradiation effect on annihilation characteristics of positronium and free positron in tetrafluoroethylene-perluoro (alkoxy vinyl ether) copolymer (PFA) were studied independently by age momentum correlation (AMOC) and the correlation between Doppler broadening S parameter and o-Ps fraction (S-Io-Ps correlation). AMOC results revealed decreases in S parameter of o-Ps, owing to accumulation of polar atoms around free volume. S-Io-Ps correlation indicated a reduced intrinsic S parameter of free positron in irradiated PFA, which was caused by enhanced positron trapping on polar atoms due to densification of local segments and variation in the elemental environment around free volumes. (C) 2014 Elsevier B.V. All rights reserved.
Subject AreaChemistry; Physics
DOI10.1016/j.cplett.2014.02.001
Indexed BySCI ; ADS
Language英语
WOS IDWOS:000333459700005
ADS Bibcode2014CPL...597...26Y
ADS URLhttps://ui.adsabs.harvard.edu/abs/2014CPL...597...26Y
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2014CPL...597...26Y/citations
Citation statistics
Cited Times:2 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/224884
Collection多学科研究中心
Recommended Citation
GB/T 7714
Yang J,Li ZX,Zhao BZ,et al. Study of gamma irradiation effect on positron annihilation mechanism in PFA[J]. CHEMICAL PHYSICS LETTERS,2014,597:26-29.
APA 杨静.,李卓昕.,赵博震.,Yang, J.,Li, ZX.,...&王宝义.(2014).Study of gamma irradiation effect on positron annihilation mechanism in PFA.CHEMICAL PHYSICS LETTERS,597,26-29.
MLA 杨静,et al."Study of gamma irradiation effect on positron annihilation mechanism in PFA".CHEMICAL PHYSICS LETTERS 597(2014):26-29.
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