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Test of BESⅢ RPC in the avalanche mode |
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| Authors: | HAN Ji-Feng ZHANG Jia-Wen CHEN Jin ZHANG Qing-Min LIU Qian XIE Yu-Guang QIAN Sen MA Lie-Hua |
| Abstract: | The installation of the BESⅢ RPC system has been completed.Cosmic ray test results show that they perform very well in streamer mode and meet the BESⅢ requirements.We have tested several RPCs in the avalanche mode with the addition of extra SF6 in the gas mixture.We find an efficiency plateau that reaches～95%.and a time resolution of 1.8 ns.This demonstrates that the BESⅢ-type RPC can work in the avalanche mode as well. |
| Keywords: | resistive plate chamber (RPC) BESⅢ avalanche mode Test type work time resolution find efficiency plateau avalanche mode addition mixture requirements Cosmic test results show perform streamer meet system installation |
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