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arXiv · 0905.2916

THGEM operation in Ne and Ne/CH4

M. Cortesi·V. Peskov·G. Bartesaghi·J. Miyamoto·S. Cohen·R. Chechik·J. M. Maia·J. M. F. dos Santos·G. Gambarini·V. Dangendorf·A. Breskin
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Abstract

The operation of Thick Gaseous Electron Multipliers (THGEM) in Ne and Ne/CH4 mixtures, features high multiplication factors at relatively low operation potentials, in both single- and double-THGEM configurations. We present some systematic data measured with UV-photons and soft x-rays, in various Ne mixtures. It includes gain dependence on hole diameter and gas purity, photoelectron extraction efficiency from CsI photocathodes into the gas, long-term gain stability and pulse rise-time. Position resolution of a 100x100 mm^2 X-rays imaging detector is presented. Possible applications are discussed.

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M. Cortesi, V. Peskov, G. Bartesaghi, J. Miyamoto, S. Cohen, R. Chechik, J. M. Maia, J. M. F. dos Santos, G. Gambarini, V. Dangendorf, A. Breskin. 2009-05-19. THGEM operation in Ne and Ne/CH4. https://doi.org/10.1088/1748-0221/4/08/p08001

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