北京慢正电子强束流束团化系统设计

来源 :高能物理与核物理 | 被引量 : 0次 | 上传用户：lqylzy

【摘要】

：

慢正电子湮没寿命测量是研究材料表面微观缺陷的重要分析方法.束团化系统是实现慢正电子湮没寿命测量的核心部件,主要由斩波、聚束两部分组成,它可以将随时间连续分布的束流

【作者】

：

马雁云裴士伦曹兴忠王平魏存峰马创新章志明王书鸿

【机构】

：

中国科学院高能物理研究所核分析技术重点实验室,中国科学院研究生院,中国科学院高能物理研究所加速器中心

【出处】

：

高能物理与核物理

【发表日期】

：

2004年期

【关键词】

：

慢正电子湮没寿命测量束团化斩波聚束时间分辨率能散

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慢正电子湮没寿命测量是研究材料表面微观缺陷的重要分析方法.束团化系统是实现慢正电子湮没寿命测量的核心部件,主要由斩波、聚束两部分组成,它可以将随时间连续分布的束流束团化,从而获得正电子湮没寿命测量的时间起点及满足时间分辨率要求的束团.本文以粒子动力学计算为基础,完成了束团化系统的物理设计,其时间分辨率设计值为150ps(FWHM).

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北京慢正电子强束流束团化系统设计

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