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MHSP in reversed-bias operation mode for ion blocking in gas-avalanche multipliers
Veloso, J. F. C. A.; Amaro, F. D.; Maia, J. M.; Lyashenko, A. V.; Breskin, A.; Chechik, R.; Santos, J. M. F. dos; Bouianov, O.; Bouianov, M.We present recent results on the operation of gas-avalanche detectors comprising a cascade of gas electron multipliers (GEMs) and Mico-Hole & Strip Plate (MHSP) multiplier operated in reversed-bias (R-MHSP) mode. The operation mechanism of the R-MHSP is explained and its potential contribution to ion-backflow (IBF) reduction is demonstrated. IBF values of 4×10-3 were obtained in cascaded R-MHSP and GEM multipl...
Data: 2005
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Origem: Estudo Geral - Universidade de Coimbra
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