Study of the RPC-Gd as thermal neutron detector

中国物理C, 2009, 33(9): 769-773.

^1, , ^2, , ^3, , ^4, , ^5, , ^6, , ^7, , ^8,

1.Institute of High Energy Physics, CAS, Beijing 100049, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China

2.Institute of High Energy Physics, CAS, Beijing 100049, China

3.Institute of High Energy Physics, CAS, Beijing 100049, China

4.Institute of High Energy Physics, CAS, Beijing 100049, China

5.Institute of High Energy Physics, CAS, Beijing 100049, China

6.Institute of High Energy Physics, CAS, Beijing 100049, China

7.Institute of High Energy Physics, CAS, Beijing 100049, China

8.Institute of High Energy Physics, CAS, Beijing 100049, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Study of the RPC-Gd as thermal neutron detector

QIAN Sen ^1, , WANG Yi-Fang ^2, , ZHANG Jia-Wen ^3, , LI Jin ^4, , CHEN yuan-Bo ^5, , CHEN Jin ^6, , WANG Zhi-Gang ^7, , MA Lie-Hua ^8,

1.Institute of High Energy Physics, CAS, Beijing 100049, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China

2.Institute of High Energy Physics, CAS, Beijing 100049, China

3.Institute of High Energy Physics, CAS, Beijing 100049, China

4.Institute of High Energy Physics, CAS, Beijing 100049, China

5.Institute of High Energy Physics, CAS, Beijing 100049, China

6.Institute of High Energy Physics, CAS, Beijing 100049, China

7.Institute of High Energy Physics, CAS, Beijing 100049, China

8.Institute of High Energy Physics, CAS, Beijing 100049, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Keywords： RPC

The BESⅢ RPC with Gd coating as thermal neutron detector was designed and constructed. Three prototypes were built with different techniques of producing the gadolinium converter. The performance of the cosmic ray test, the signal and the radiation spectrum were discussed in this paper. Lastly, the efficiency of one prototype with the best performance for detecting the thermal neutron was tested as 8.7%.

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