MSGCs with Pestov-glass coatings

Abstract

We report a systematic study of MSGCs built on thin-film Pestov-glass. The glass film prepared by sputtering was found to be electronically conductive. The MSGCs with conductive coatings show high stability in leakage current (less than 1% over 3 hr) and fast response (in seconds) to local charging induced by a high flux of X-rays. The spatial uniformity along the strip is quite good. A gas gain of 5000 is obtained in the Ne(SO%)-DME( 50%) mixture. The rate capability is over lo6 Hz/mm*.

Performance of a prototype of the microstrip gas chambers for the CMS experiment at LHC

“…The chambers were built on 300 m thick DESAG D263 glass substrates, with Pestov or diamond undercoating [4,5] …”