中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Depth profiles of the Doppler-broadening S parameter for polymers obtained with two measuring patterns: The role of accumulated charges

文献类型:期刊论文

作者Yang J(杨静); 张鹏(正); 卢二阳Yang, J; Zhang, P; Lu, EY; Cao, XZ; Yu, RS; Wang, BY; Cao XZ(曹兴忠); Yu RS(于润升)
刊名NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
出版日期2014
卷号323页码:71-74
关键词Positron Polymers Depth profile Accumulated charges
英文摘要Depth profiles of Doppler broadening S parameter for oxygen containing polymer polycarbonate (PC), fluoropolymer poly (tetrafluoroethylene) (PTFE) and chlorine containing polymer polyvinylchloride-unplasticized (UPVC) were obtained with two measuring patterns, i.e. energy increase pattern and energy decrease pattern. The two curves can't coincide with each other for that a trough appeared between 1 and 5 keV in the curve obtained with energy decrease pattern. It was found that charges induced by high energy incident positrons greatly influenced the annihilation of low energy incident positrons, while charges induced by low energy incident positrons showed little influence on the annihilation of high energy incident positrons. With energy increase measuring pattern, charges induced by low energy incident positrons showed little influence on the annihilation of later incident high energy positrons, thus the measurement can give the depth profile of S parameter in polymer as it was. (C) 2014 Elsevier B.V. All rights reserved.
学科主题Instruments & Instrumentation; Nuclear Science & Technology; Physics
收录类别SCI
WOS记录号WOS:000333497800011
公开日期2016-05-03
源URL[http://ir.ihep.ac.cn/handle/311005/225224]  
专题高能物理研究所_多学科研究中心
推荐引用方式
GB/T 7714
Yang J,Zhang P,卢二阳Yang, J,et al. Depth profiles of the Doppler-broadening S parameter for polymers obtained with two measuring patterns: The role of accumulated charges[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2014,323:71-74.
APA 杨静.,张鹏.,卢二阳Yang, J.,Zhang, P.,Lu, EY.,...&王宝义.(2014).Depth profiles of the Doppler-broadening S parameter for polymers obtained with two measuring patterns: The role of accumulated charges.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,323,71-74.
MLA 杨静,et al."Depth profiles of the Doppler-broadening S parameter for polymers obtained with two measuring patterns: The role of accumulated charges".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 323(2014):71-74.

入库方式: OAI收割

来源:高能物理研究所

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