High-rate operation of the Micro-Hole and Strip Plate gas detector

• Autor(es): Veloso, J. F. C. A. ; Caldas, C. C. ; Oliveira, C. A. B. ; Azevedo, C. D. R. ; Santos, J. M. F. dos ; Breskin, A. ; Chechik, R.
• Data: 2007
• Identificador Persistente: http://hdl.handle.net/10316/4361
• Origem: Estudo Geral - Universidade de Coimbra
• Assunto(s): Count rate
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

We report the performance of the Micro-Hole-and-Strip-Plate (MHSP) operated in xenon, under high-flux irradiation of a 30-kV X-ray Cu-tube. Stable operation in pulse-counting mode for gas gains above 104 was measured up to counting rates of 5×105 Hz/mm2. A gain variation of less than 5% was observed for gains of 104, while the energy resolution for 8-keV X-rays degrades from ~16% to ~18%. No visible degradation was observed on the MHSP irradiated area. http://www.sciencedirect.com/science/article/B6TJM-4NTB92C-5/1/ae310ff6f302c176c09b7d1efd012ab1