MHSP with position detection capability

• Autor(es): Luz, H. Natal da ; Veloso, J. F. C. A. ; Mendes, N. F. C. ; Santos, J. M. F. dos ; Mir, J. A.
• Data: 2007
• Identificador Persistente: http://hdl.handle.net/10316/4379
• Origem: Estudo Geral - Universidade de Coimbra
• Assunto(s): Micro Hole and Strip Plate; Gas Electron Multiplier; X-ray detector; Position sensitive; Resistive charge division; Analogue division
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

The first implementation of a position sensitive readout for a Micro Hole and Strip Plate (MHSP) is described and tested. The readout consists on a resistive layer crossing the anodes and connected to a preamplifier on each side. By weighing the charge pulses on both preamplifiers it is possible to determine the interaction point. A 100-200 [Omega] resistance layer between consecutive strips was found to be the best compromise between position linearity and energy resolution. Preliminary results using 22.1 keV X-rays present a good linearity between the measured and the actual position with a mean deviation of about 0.15 mm and a position resolution of 1.6 mm full-width at half-maximum (FWHM), being limited by the analogue division electronic circuit. The performance of the MHSP position detector will be presented and discussed for 1D readout. http://www.sciencedirect.com/science/article/B6TJM-4MCW883-6/1/e528f681f383637223dd897e6767bb5d