Depth-dependent positron annihilation in different polymers
文献类型：期刊论文
| 作者 | Yang J(杨静) ; 张鹏(正); Cheng GD(成国栋); Yang, J; Zhang, P; Cheng, GD; Li, DX; Wu, HB; Li, ZX; Cao, XZ; Jia, QJ; Yu, RS
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| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2013 |
| 卷号 | 280页码:109-112 |
| 关键词 | Positron annihilation Doppler broadening Polymer Atomic electronegativity |
| 英文摘要 | Depth-dependent positron annihilation Doppler broadening measurements were conducted for polymers with different chemical compositions. Variations of the S parameter with respect to incident positron energy were observed. For pure hydrocarbons PP, HDPE and oxygen-containing polymer PC, S parameter rises with increasing positron implantation depth. While for PI and fluoropolymers like PTFE, ETFE and PVF, S parameter decreases with higher positron energy. For chlorine-containing polymer PVDC, S parameter remains nearly constant at all incident positron energies. It is suggested that these three variation trends are resulted from a competitive effect between the depth-dependent positronium formation and the influence of highly electronegative atoms on positron annihilation characteristics. (C) 2013 Elsevier B.V. All rights reserved. |
| 学科主题 | Chemistry; Materials Science; Physics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000321045700016 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/223847]  |
| 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,Zhang, P,et al. Depth-dependent positron annihilation in different polymers[J]. APPLIED SURFACE SCIENCE,2013,280:109-112. |
| APA | 杨静.,张鹏.,Zhang, P.,Cheng, GD.,Li, DX.,...&李东翔；伍海彪；李卓昕；曹兴忠；贾全杰；于润升；王宝义.(2013).Depth-dependent positron annihilation in different polymers.APPLIED SURFACE SCIENCE,280,109-112. |
| MLA | 杨静,et al."Depth-dependent positron annihilation in different polymers".APPLIED SURFACE SCIENCE 280(2013):109-112. |
入库方式： OAI收割
来源：高能物理研究所
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