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Study of electron focusing in thick GEM based photon detectors using semitransparent photocathodes

Baishali, G and Radhakrishna, V and Koushal, V and Rakhee, K and Rajanna, K (2013) Study of electron focusing in thick GEM based photon detectors using semitransparent photocathodes. In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 729 . pp. 51-57.

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Official URL: http://dx.doi.org/10.1016/j.nima.2013.06.099

Abstract

The detection efficiency of a GEM based UV sensitive gaseous photomultiplier (GPM) depends on the focusing of electrons from the drift gap to the GEM aperture. We have studied the effect of drift parameters on the efficiency of electron focusing into Thick GEM (THGEM) holes in a GPM with semitransparent UV photoconverter. This study comprises simulation of electron focusing into THGEM holes using GARFIELD for different Ar and Ne based gas mixtures and experimental investigations of the same with P10 gas mixture. (c) 2013 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: copyright for this article belongs to ELSEVIER SCIENCE
Keywords: Thick GEM (THGEM); Gaseous photomultipliers (GPM); Solid-photocathodes; UV photon detectors
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Depositing User: Id for Latest eprints
Date Deposited: 22 Nov 2013 11:16
Last Modified: 22 Nov 2013 11:21
URI: http://eprints.iisc.ac.in/id/eprint/47777

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