Microstrip gas chamber on thin-film Pestov glass and micro gap chamber

We report developments of the microstrip gas chamber on thin-film Pestov glass and the micro gap chamber. By coating a thin-layer of low-resistive, electronically-conductive glass on various substrates (including quartz and ceramics), we built MSGCs of high gain stability and low leakage current. They were tested in ArCH4(10%) and HeC2H6(50%) gas mixtures. Energy resolutions of 17–20% were measured for 6 keV X-rays. This design can make the choice of substrate less important, save the cost of ion-implantation, and use less glass material. Micro Gap Chamber was successfully tested in HeC2H6(50%) and ArC2H6(50%) gas mixtures. Energy resolutions of about 20% were obtained. Both detectors are expected to have high rate capability.