Performance of the plugged-in ^(22)Na based slow positron beam facility  

作　　者：王平 马雁云 秦秀波 张哲 曹兴忠 于润升 王宝义 

机构地区：[1]Key Laboratory of Nuclear Analysis Techniques,Institute of High Energy Physics,CAS,Beijing 100049,China Graduate University of Chinese Academy of Sciences,Beijing 100049,China [2]Key Laboratory of Nuclear Analysis Techniques,Institute of High Energy Physics,CAS,Beijing 100049,China

出　　处：《Chinese Physics C》2008年第3期243-246,共4页中国物理C（英文版）

基　　金：Supported by NSFC(10475096);Special Fund for Equipment of CAS(U-37)

摘　　要：The Beijing intense slow positron beam facility is based on the 1.3 GeV linac of Beijing ElectronPositron Collider （BEPC） aiming to produce mono-energetic intense slow positron beam for material science investigation. The plugged-in 22Na based slow positron beam section has been newly constructed to supply continuous beam time for the debugging of positron annihilation measurement stations and improve the Beijing intense slow positron beam time using efficiency. Performance testing result of the plugged-in 22Na based slow positron beam facility are reviewed in this paper, with the measurement of the beam transport efficiency, the view of beam spot, the adjustment of beam position, the measurement of beam intensity and energy spread etc. included.The Beijing intense slow positron beam facility is based on the 1.3 GeV linac of Beijing ElectronPositron Collider （BEPC） aiming to produce mono-energetic intense slow positron beam for material science investigation. The plugged-in 22Na based slow positron beam section has been newly constructed to supply continuous beam time for the debugging of positron annihilation measurement stations and improve the Beijing intense slow positron beam time using efficiency. Performance testing result of the plugged-in 22Na based slow positron beam facility are reviewed in this paper, with the measurement of the beam transport efficiency, the view of beam spot, the adjustment of beam position, the measurement of beam intensity and energy spread etc. included.

关 键 词：slow positron beam transport efficiency beam intensity energy spread 

分 类 号：TL50[核科学技术—核技术及应用]