Beijing intense slow positron beam has been constructed successfully,which utilizes the pulsed electron beam of the BEPC LINAC with high energy to inject into the Ta target.

• 慢正电子强束流采用高能脉冲电子束流轰击金属钽靶,以产生正负电子对的方式提供正电子,作为慢正电子束流方法学研究和薄膜材料缺陷研究的束流基础。