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Recent Investigations of Cascaded GEM and MHSP detectors

R. Chechik·A. Breskin·G. P. Guedes·D. Moermann·J. Maia·V. Dangendorf·D. Vartzky·J. M. F. Dos Santos·J. F. C. A. Veloso
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Abstract

We present results from our recent investigations on detectors comprising cascaded gas electron multipliers (GEM) and cascaded GEMs with micro-hole and strip (MHSP) electrodes. We discuss the factors governing the operation of these fast radiation imaging detectors, that have single-charge sensitivity. The issue of ion-backflow and ion-induced secondary effects is discussed in some detail, presenting ways for its reduction and suppression. Applications are presented in the fields of photon imaging in the UV-to-visible spectral range as well as x-ray and neutron imaging.

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R. Chechik, A. Breskin, G. P. Guedes, D. Moermann, J. Maia, V. Dangendorf, D. Vartzky, J. M. F. Dos Santos, J. F. C. A. Veloso. 2003-11-24. Recent Investigations of Cascaded GEM and MHSP detectors. https://doi.org/10.1109/tns.2004.835628

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