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Effects of the electric field on the electron drift velocity in a double-GEM detector in different gas mixtures

Authors
Journal
Radiation Measurements
1350-4487
Publisher
Elsevier
Publication Date
Volume
39
Issue
5
Identifiers
DOI: 10.1016/j.radmeas.2004.08.004
Keywords
  • Gas Electron Multiplier
  • Gas Mixtures
  • Gas Gain
  • X-Ray Detection
  • Gaseous Detector

Abstract

Abstract A study of the electronic drift velocity in a double-GEM detector is presented. We compare measurements and simulations done to investigate the effects of the induction parameters—electric field and gap—for different gas mixtures Ar/CH 4(90/10), Ar/C 2H 6(75/25), Ar/Xe/CO 2(64/16/20) and Ar/Kr/CO 2(76/19/5) at atmospheric pressure using 5.9 keV X-rays. We used 2, 4 and 6 mm deep induction gaps and induction fields varying up to 6 kV/cm.

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