Design and Construction of the Plugged-in 22Na Based Slow Positron Beam Facility

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WANG Ping, CAO Xing-Zhong, MA Yan-Yun, QIN Xiu-Bo, WANG Bao-Yi, MA Chuang-Xin and WEI Long. Design and Construction of the Plugged-in 22Na Based Slow Positron Beam Facility[J]. Chinese Physics C, 2006, 30(10): 1036-1040.
WANG Ping, CAO Xing-Zhong, MA Yan-Yun, QIN Xiu-Bo, WANG Bao-Yi, MA Chuang-Xin and WEI Long. Design and Construction of the Plugged-in 22Na Based Slow Positron Beam Facility[J]. Chinese Physics C, 2006, 30(10): 1036-1040. shu
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Received: 2006-01-24
Revised: 2006-03-07
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Design and Construction of the Plugged-in 22Na Based Slow Positron Beam Facility

    Corresponding author: WANG Ping,
  • Key Laboratory of Nuclear Analysis Techniques, Institute of High Energy Physics, CAS, Beijing 100049, China2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Abstract: The Beijing intense slow positron beam facility has restricted running time of the BEPC-LINAC designed for BES and BSRF operation, We have therefore designed and constructed the plugged-in 22Na based slow positron beam section in the Beijing intense slow positron beam line with which we can supply continuous slow positron beam for debugging of newly-built positron annihilation measurement systems and saving running time of the Beijing intense slow positron beam. The plugged-in 22Na based slow positron beam section includes positron source(22Na), positron moderator, E×B slow positron energy filter, multilevel electrostatic acceleration tube, radioprotection, magnetic transport system and vacuum system, etc. The new slow positron beam line will be running on April, 2006.

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