Chinese Physics C > 1988, Vol. 12 > Issue(5): 587-592

THE STUDY AND PRODUCTION OF PWC'S FOR THE FIRST MODULE OF L3 HADRON CALORIMETER

Institute of High Energy Physics,Academia Sinica,Beijing

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Abstract：
This paper reports the study and production and the performance of 60 PWC's which were the first module of L3 hadron calorimeter.125 Volts plateau and 3.4%/100V plateau slope were obtained with the gas mixture of Ar:CO ₂=80:20.We also checked the dark current of some chambers and found that the dark current could be reduced by "cooking".The chambers worked well when they were assembled in a calorimeter module and tested by the beam of SPS at CERN.

References

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CHEN Chang, CHEN He-Sheng, LI Huan-Tie, LI Xiao-Guang, LV Yu-Sheng, MAO Yu-Fang, TANG Xiao-Wei, TONG Guo-Liang, WANG Meng-Qi, XU Hong-Zhang, YANG Chang-Gen, YANG Kang-Shu, YANG Qing-Yun, ZHANG Shou-Yu, ZHU Yong-Sheng and ZHUANG Hong-Lin. THE STUDY AND PRODUCTION OF PWC'S FOR THE FIRST MODULE OF L3 HADRON CALORIMETER[J]. Chinese Physics C, 1988, 12(5): 587-592.

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

THE STUDY AND PRODUCTION OF PWC'S FOR THE FIRST MODULE OF L3 HADRON CALORIMETER

Corresponding author:CHEN Chang,

Institute of High Energy Physics,Academia Sinica,Beijing

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1988-10-05

Abstract:This paper reports the study and production and the performance of 60 PWC's which were the first module of L3 hadron calorimeter.125 Volts plateau and 3.4%/100V plateau slope were obtained with the gas mixture of Ar:CO₂=80:20.We also checked the dark current of some chambers and found that the dark current could be reduced by "cooking".The chambers worked well when they were assembled in a calorimeter module and tested by the beam of SPS at CERN.