A device used in pulsed slow positron beam's stretching
文献类型：期刊论文
| 作者 | Wei CF(魏存峰) ; Wang BY(王宝义); 王平(东); Cao XZ(曹兴忠); Zhang ZM(章志明); Ma YY(马雁云); Wei L(魏龙); Wei, CF; Wang, BY; Wang, P
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| 刊名 | HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
 |
| 出版日期 | 2006 |
| 卷号 | 30期号:10页码:1010-1013 |
| 关键词 | Penning-Trap stretching slow positron beam positron annihilation |
| 通讯作者 | Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China ; CAS, Inst High Energy Phys, Key Lab Nucl Anal Tech, Beijing 100049, Peoples R China |
| 英文摘要 | A slow positron beam's stretching device has been designed and constructed on Beijing Slow Positron Beam, which based on a 1.3GeV linac. Positron was storage and stretching use Penning-Trap technique. Measurements show that the positron storage time strongly depends on the vacuum level in Penning Trap tube. Two modes was used to release the positrons from storage part, lowering V-C while V-B kept constant and rising Vs while V-C kept constant. This technique makes the pulsed positron beam to a quasi-continuous beam. The energy spread of positrons depend on in release mode. In the latter mode, we observe that the energy spread was reduced to a value less than 1.0eV. The time profile in user-defined waveform is more uniform. It is beneficial to reduce the probability of amplifier pileup especially in the case of measurement with high counting rate. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear ; Physics, Particles & Fields |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000240956100015 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/238889]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_理论物理室 高能物理研究所_核技术应用研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Wei CF,Wang BY,Wang P,et al. A device used in pulsed slow positron beam's stretching[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2006,30(10):1010-1013. |
| APA | 魏存峰.,王宝义.,王平.,曹兴忠.,章志明.,...&Wei, L.(2006).A device used in pulsed slow positron beam's stretching.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,30(10),1010-1013. |
| MLA | 魏存峰,et al."A device used in pulsed slow positron beam's stretching".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 30.10(2006):1010-1013. |
入库方式： OAI收割
来源：高能物理研究所
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