Measurement of the performance of TGC detectors

Shandong University is in charge of the research and production of T9 type TGC (Thin Gap Chamber) detectors for ATLAS experiment. In this paper, the stability and the leak current of the detectors working at 3200 V voltage were measured, and the plateau curves of the detectors were measured too. The counting rate of each channel was measured with same working condition and counting time interval for all the TGC detectors, in order to check the consistency of all signal channels. The performance of T9 type TGC detectors produced by Shandong University has met the requirement of the ATLAS experiment according to the preliminary results of measurement.