Please use this identifier to cite or link to this item:
Title: Ion-induced effects in GEM and GEM/MHSP gaseous photomultipliers for the UV and the visible spectral range
Authors: Breskin, A. 
Mörmann, D. 
Lyashenko, A. 
Chechik, R. 
Amaro, F. D. 
Maia, J. M. 
Veloso, J. F. C. A. 
Santos, J. M. F. dos 
Keywords: Gaseous electron multipliers; Gaseous photomultipliers; Photocathodes
Issue Date: 2005
Citation: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 553:1-2 (2005) 46-52
Abstract: We report on the progress in the study of cascaded GEM and GEM/MHSP gas avalanche photomultipliers operating at atmospheric pressure, with CsI and bialkali photocathodes. They have single-photon sensitivity, ns time resolution and good localization properties. We summarize operational aspects and results, with the highlight of a high-gain stable gated operation of a visible-light device. Of particular importance are the results of a recent ion-backflow reduction study in different cascaded multipliers, affecting the detector's stability and the photocathode's lifetime. We report on the significant progress in ion-blocking and provide first results on bialkali-photocathode aging under gas multiplication.
DOI: 10.1016/j.nima.2005.08.005
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
filea4b52d760cdb46d9a44dff1864043488.pdf416.27 kBAdobe PDFView/Open
Show full item record


checked on Nov 2, 2021

Page view(s)

checked on Nov 25, 2021


checked on Nov 25, 2021

Google ScholarTM




Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.