Development of Resistive Electrode Gas Electron Multiplier (RE-GEM)

A. Yoshikawa, T. Tamagawa, T. Iwahashi, F. Asami, Y. Takeuchi, A. Hayato, H. Hamagaki, T. Gunji, R. Akimoto, A. Nukariya, S. Hayashi, K. Ueno, A. Ochi, R. Oliveira

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

We successfully produced Resistive-Electrode Gas Electron Multiplier (RE-GEM) which has resistive electrodes instead of the metal ones which are employed for the standard GEM foils. RE-GEM has a resistive electrode of 25 μm-thick and an insulator layer of 100 μm-thick. The hole structure of RE-GEM is a single conical with the wider and narrower hole diameters of 80 μm and 60 μm, respectively. A hole pitch of RE-GEM is 140 μm. We obtained the maximum gain of about 600 and the typical energy resolution of about 20% (FWHM) at an applied voltage between the resistive electrodes of 620 V, using a collimated 8 keV X-rays from a generator in a gas mixture of 70% Ar and 30% CO2 by volume at the atmospheric pressure. We measured the effective gain as a function of the electric field of the drift region and obtained the maximum gain at an drift field of 0.5 kV/cm.

Original languageEnglish
Article numberC06006
JournalJournal of Instrumentation
Volume7
Issue number6
DOIs
Publication statusPublished - 2012 Jun
Externally publishedYes

Keywords

  • Gaseous detectors
  • Micropattern gaseous detectors (MSGC, GEM, THGEM, RETHGEM, MHSP, MICROPIC, MICROMEGAS, InGrid, etc)

ASJC Scopus subject areas

  • Mathematical Physics
  • Instrumentation

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