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Title: Noble-gas operation of Micro-Hole and Strip Plate electron multipliers at atmospheric-to-high pressures
Authors: Amaro, F. 
Veloso, J. F. C. A. 
Maia, J. M. 
Breskin, A. 
Chechik, R. 
Santos, J. M. F. dos 
Issue Date: 2004
Citation: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 535:1-2 (2004) 341-346
Abstract: We present the performance of a Micro-Hole and Strip Plate (MHSP) electron multiplier in argon-xenon mixtures, at pressures of 1-7 bar. This microstructure can operate at high pressures without significant reduction of the maximum achievable gain. Absolute gains of 1-4×103 were reached in Ar/50 mbar Xe over this pressure range; the maximum gain is imposed by the discharge limit, dropping at higher pressures. Energy resolutions between 14% and 16% were reached for 6 keV X-rays; they do not degrade significantly with increasing pressure. Better performances are expected by improved manufacturing of the MHSP.
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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