Operation of gas proportional scintillation counters in a low charge multiplication regime

• Autor(a) principal: Borges, F. I. G. M.
• Data de Publicação: 1999
• Outros Autores: Santos, J. M. F. dos, Dias, T. H. V. T., Santos, F. P., Rachinhas, P. J. B. M., Conde, C. A. N.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10316/4555; https://doi.org/10.1016/S0168-9002(98)00966-8

The operation of a xenon filled gas proportional scintillation counter under low charge multiplication gains is discussed. It is shown that the best energy resolution for X-rays is obtained for a reduced electric field, E/p, of about 8 V cm-1 Torr-1, leading to a charge gain (for inter-grid distance of 5 mm) of about 1.05, as calculated by a Monte Carlo simulation method. A discussion is presented concerning the dependence of the E/p values for better detector performance, on the inter-grid distance.