Author/Authors :
Tokanai، نويسنده , , Fuyuki and Moriya، نويسنده , , Toru and Takeyama، نويسنده , , Mirei and Sakurai، نويسنده , , Hirohisa and Gunji، نويسنده , , Shuichi and Sumiyoshi، نويسنده , , Takayuki and Ito، نويسنده , , Takayuki and Sugiyama، نويسنده , , Hirioyuki and Okada، نويسنده , , Teruyuki and Ohishi، نويسنده , , Noboru and Kishimoto، نويسنده , , Syunji، نويسنده ,
Abstract :
A new micromesh gas (Micromegas) detector has been developed for a gaseous photomultiplier tube (PMT) with a bialkali photocathode. A basic performance test of the Micromegas detector was carried out for a Ne (90%) + CF4 (10%) gas mixture using an X-ray beam. We constructed gaseous PMTs with a bialkali photocathode and Micromegas detectors. The photoelectron collection efficiencies in several gases and the suppression of ion feedback were investigated.
Keywords :
Micropattern Gas Detector , Photoelectron , Ion Feedback , Gaseous PMT
