Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/4449
Title: A curved-grid gas proportional scintillation counter instrumented with a 25-mm active-diameter photosensor
Authors: Monteiro, C. M. B. 
Morgado, R. E. 
Santos, J. M. F. dos 
Conde, C. A. N. 
Keywords: Gas scintillation counter; Xenon gas detector; X-ray detector
Issue Date: 2004
Citation: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 522:3 (2004) 407-412
Abstract: The curved-grid technique provides a simple method to compensate for the variation in solid angle viewed by the PMT in large-area gas proportional scintillation counters (GPSC), improving their performance. The scintillation region is delimited by a planar grid and a curved one, whose shape is calculated to produce a radially increasing scintillation yield, compensating for the decrease in the solid angle. In this work, we applied this technique to a GPSC instrumented with a PMT having a 25-mm diameter photocathode. The maximum ratio of the detector entrance window to the photocathode diameter thus far achieved, without significant performance degradation, is 1.
URI: https://hdl.handle.net/10316/4449
DOI: 10.1016/j.nima.2003.11.416
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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