Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                

Operation of a Thick Gas Electron Multiplier (THGEM) in Ar, Xe and Ar-Xe

, , , , , , , , , and

Published 29 January 2008 Published under licence by IOP Publishing Ltd
, , Citation R Alon et al 2008 JINST 3 P01005 DOI 10.1088/1748-0221/3/01/P01005

1748-0221/3/01/P01005

Abstract

We present the results of our recent studies of a Thick Gaseous Electron Multiplier (THGEM)-based detector, operated in Ar, Xe and Ar:Xe (95:5) at various gas pressures. Avalanche-multiplication properties and energy resolution were investigated with soft x-rays for different detector configurations and parameters. Gains above 104 were reached in a double-THGEM detector, at atmospheric pressure, in all gases, in almost all the tested conditions; in Ar:Xe (95:5) similar gains were reached at pressures up to 2 bar. The energy resolution dependence on the gas, pressure, hole geometry and electric fields was studied in detail, yielding in some configurations values below 20% FWHM with 5.9 keV x-rays.

Export citation and abstract BibTeX RIS

Please wait… references are loading.
10.1088/1748-0221/3/01/P01005