The Thin Multiwire Chamber Operating in High Gain Mode and Its Discharge Mechanism

Abstract：

The research results of a thin multiwire chamber operating with strongly quenching gas and its discharge mechanism are presented in this paper. It is indicated by experiments that high gas gain and fast time response can be achieved simultaneously because of operating in the saturated mode. The effect of space charges and the emergence and action of ionizing photons are essential factors in its discharge mechanism, but the latter factor is restrained by the strongly quenching gas.
In the experimental area of particle physics of high energy, the calorimeter plays an increasingly important role. As a part of the work of the L3 International Collaboration, we carried out the research and development of the thin muitiwire chamber operating in high gain mode which is a sort of sampling detector in calorimeter[1,2]. There has been research abroad on this subject[3-6]. In this paper, our research and results are presented.