Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/4538
Title: Simulation and experimental results for the detection of conversion electrons with gas proportional scintillation counters
Authors: Rachinhas, P. J. B. M. 
Simões, P. C. P. S. 
Lopes, J. A. M. 
Dias, T. H. V. T. 
Morgado, R. E. 
Santos, J. M. F. dos 
Stauffer, A. D. 
Conde, C. A. N. 
Keywords: Gas scintillation detectors; Conversion electrons; Monte Carlo simulation; Digital pulse processing
Issue Date: 2000
Citation: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 441:3 (2000) 468-478
Abstract: The application of gas proportional scintillation counters (GPSC) to the detection and identification of conversion electrons in the medium energy range is investigated. Experimental and Monte Carlo results are presented for the response of a xenon GPSC, filled at atmospheric pressure, to the decay of a 109Cd source. This source emits 88.0 keV [gamma]-rays, eL=84.6 keV and eK=62.5 keV conversion electrons, as well as fluorescence X-rays and Auger electrons. Good agreement is found between the measured and the calculated energy spectra. The response to higher-energy electrons is investigated by Monte Carlo simulation, by considering a hypothetical GPSC filled with xenon at 10 atm and doped with the 133mXe metastable isotope. The calculated energy spectra for the absorption of the 133mXe 233.2 keV [gamma]-rays, eK=198.6 keV and eL=228.4 keV conversion electrons, as well as fluorescence X-rays and Auger electrons, are presented and discussed.
URI: http://hdl.handle.net/10316/4538
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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