Newly developed gaseous photomultiplier

Fuyuki Tokanai,Toru Moriya,Mirei Takeyama,Hirohisa Sakurai,Shuichi Gunji,T Sumiyoshi,Takayuki Ito,Hirioyuki Sugiyama,Teruyuki Okada,Noboru Ohishi,Syunji Kishimoto

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2014）

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摘要

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.

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关键词

Gaseous PMT,Micropattern gas detector,Photoelectron,Ion feedback

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