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)
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| 刊名 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
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| 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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