Design and Construction of the Plugged-in <SUP>22</SUP>Na Based Slow Positron Beam Facility

WANG Ping; CAO Xing-Zhong; MA Yan-Yun; QIN Xiu-Bo; WANG Bao-Yi; MA Chuang-Xin; WEI Long

Chinese Physics C> 2006, Vol. 30> Issue(10) : 1036-1040

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

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

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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.

References

[1]

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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.

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Received: 2006-01-24
Revised: 2006-03-07

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Received Date: 2006-01-24

Accepted Date: 2006-03-07

Available Online: 2006-10-05

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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