A device used in pulsed slow positron beam's stretching
文献类型：期刊论文
| 作者 | Wei Cun-Feng; Wang Bao-Yi; Wang Ping; Cao Xing-Zhong; Zhang Zhi-Ming; Ma Yan-Yun; Xue De-Sheng; Wei Long |
| 刊名 | High energy physics and nuclear physics-chinese edition
 |
| 出版日期 | 2006-10-01 |
| 卷号 | 30期号:10页码:1010-1013 |
| 关键词 | Penning-trap Stretching Slow positron beam Positron annihilation |
| ISSN号 | 0254-3052 |
| 通讯作者 | Wei cun-feng(weicf@ihep.ac.cn) |
| 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. |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Nuclear ; Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000240956100015 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175829 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Wei Cun-Feng |
| 作者单位 | 1.Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China 2.CAS, Inst High Energy Phys, Key Lab Nucl Anal Tech, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei Cun-Feng,Wang Bao-Yi,Wang Ping,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 | Wei Cun-Feng.,Wang Bao-Yi.,Wang Ping.,Cao Xing-Zhong.,Zhang Zhi-Ming.,...&Wei Long.(2006).A device used in pulsed slow positron beam's stretching.High energy physics and nuclear physics-chinese edition,30(10),1010-1013. |
| MLA | Wei Cun-Feng,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. |
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来源：高能物理研究所
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