一种新的灵敏核探针——慢正电子束流装置

魏龙; 陈红民; 于润升; 王宝义; 张天保; 郁伟中; 何元金; 王天民

doi:10.11804/NuclPhysRev.17.02.117

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一种新的灵敏核探针——慢正电子束流装置

魏龙, 陈红民, 于润升, 王宝义, 张天保, 郁伟中, 何元金, 王天民

文章导航 > 原子核物理评论 > 2000 > 17(2): 117-120

魏龙, 陈红民, 于润升, 王宝义, 张天保, 郁伟中, 何元金, 王天民. 一种新的灵敏核探针——慢正电子束流装置[J]. 原子核物理评论, 2000, 17(2): 117-120. doi: 10.11804/NuclPhysRev.17.02.117

引用本文:

WEI Long, CHEN Hong-min, YU Run-sheng, WANG Bao-yi, ZHANG Tian-bao, YU Wei-zhong, HE Yuan-jin, Wang Tian-min. A New Type of Acute Nuclear ProbeSlow Positron Beam Line[J]. Nuclear Physics Review, 2000, 17(2): 117-120. doi: 10.11804/NuclPhysRev.17.02.117

Citation:

WEI Long, CHEN Hong-min, YU Run-sheng, WANG Bao-yi, ZHANG Tian-bao, YU Wei-zhong, HE Yuan-jin, Wang Tian-min. A New Type of Acute Nuclear ProbeSlow Positron Beam Line[J]. Nuclear Physics Review, 2000, 17(2): 117-120. doi: 10.11804/NuclPhysRev.17.02.117

一种新的灵敏核探针——慢正电子束流装置

doi: 10.11804/NuclPhysRev.17.02.117

1 中国科学院高能物理研究所核分析技术开放实验室2 中国科学院高能物理研究所核分析

A New Type of Acute Nuclear ProbeSlow Positron Beam Line

1 Institute of High Energy Physics; the Chinese Academy of Sciences; Beijing 100080; China2 Physics Department of Tsinghua University; Beijing 100084; China)

摘要: 简要介绍了广泛应用于表面科学的灵敏核探针——慢正电子束设备的原理、构造和应用 ,阐述了北京慢正电子束流装置的设计原理和性能 ,讨论了北京慢正电子束流装置今后的研究前景. A novel and compact slow positron beam line——Beijing Slow Positron Beam Line was described. The basic physical concepts of the slow positron beam and its applications were reviewed. Recent experimental results showed the converting effcicency for the total positrons from the radioisotope to slow positrons was 8×10 -5 and the moderation efficiency was 1.7×10 -4 . The future development of Beijing Intense Slow Positron Beam, based on the BEPC LINAC, was also briefly discussed.
- 慢正电子束流 /
- 正电子湮没 /
- 表面界面
Abstract: A novel and compact slow positron beam line——Beijing Slow Positron Beam Line was described. The basic physical concepts of the slow positron beam and its applications were reviewed. Recent experimental results showed the converting effcicency for the total positrons from the radioisotope to slow positrons was 8×10 -5 and the moderation efficiency was 1.7×10 -4 . The future development of Beijing Intense Slow Positron Beam, based on the BEPC LINAC, was also briefly discussed.
- slow positron beam line /
- positron annihilation technique /
- efficiency

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一种新的灵敏核探针——慢正电子束流装置

doi: 10.11804/NuclPhysRev.17.02.117

1 中国科学院高能物理研究所核分析技术开放实验室2 中国科学院高能物理研究所核分析

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2000-06-20

关键词:

慢正电子束流 /

正电子湮没 /

表面界面

摘要: 简要介绍了广泛应用于表面科学的灵敏核探针——慢正电子束设备的原理、构造和应用 ,阐述了北京慢正电子束流装置的设计原理和性能 ,讨论了北京慢正电子束流装置今后的研究前景. A novel and compact slow positron beam line——Beijing Slow Positron Beam Line was described. The basic physical concepts of the slow positron beam and its applications were reviewed. Recent experimental results showed the converting effcicency for the total positrons from the radioisotope to slow positrons was 8×10 -5 and the moderation efficiency was 1.7×10 -4 . The future development of Beijing Intense Slow Positron Beam, based on the BEPC LINAC, was also briefly discussed.