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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