Study of Avalanche of Gas Detector

Xu Changbu; Xu Tong; Xu Zizong

Chinese Physics C> 1995, Vol. 19> Issue(2) : 116-122

Study of Avalanche of Gas Detector

Department of Modern Physics,University of Sciencs and Technology of China,Hefei 230026

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Abstract：
Based on Towsend's avalanche mode and some basic physical ideas,a unified formula for gas amplification working under proportional mode and limited proportional mode is deduced.This formula explains the experimental data well.By fitting the data, some important parameters are displayed.The effective capacitor describes the effect of space charges,and the linearity shows the state of the gas detector(under PM or LPM).This formula also gives some explanations on SQS mode while space charges are one of the important factors effecting the avalanche.

References

[1]	Hideaki Ohgaki,et al.Nucl.Instr.and Meth,A295（1990）411-416.[2]唐孝威，中国科学，9（1991）995.[3]N.Koori.et al,IEEE Tran,on Nucl.Sci.,33（1986）395.

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Xu Changbu, Xu Tong and Xu Zizong. Study of Avalanche of Gas Detector[J]. Chinese Physics C, 1995, 19(2): 116-122.

Xu Changbu, Xu Tong and Xu Zizong. Study of Avalanche of Gas Detector[J]. Chinese Physics C, 1995, 19(2): 116-122. shu

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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

Study of Avalanche of Gas Detector

Corresponding author: Xu Changbu,

Department of Modern Physics,University of Sciencs and Technology of China,Hefei 230026

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1995-02-05

Abstract: Based on Towsend's avalanche mode and some basic physical ideas,a unified formula for gas amplification working under proportional mode and limited proportional mode is deduced.This formula explains the experimental data well.By fitting the data, some important parameters are displayed.The effective capacitor describes the effect of space charges,and the linearity shows the state of the gas detector(under PM or LPM).This formula also gives some explanations on SQS mode while space charges are one of the important factors effecting the avalanche.