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Title: MHSP with position detection capability
Authors: Luz, H. Natal da 
Veloso, J. F. C. A. 
Mendes, N. F. C. 
Santos, J. M. F. dos 
Mir, J. A. 
Keywords: Micro Hole and Strip Plate; Gas Electron Multiplier; X-ray detector; Position sensitive; Resistive charge division; Analogue division
Issue Date: 2007
Citation: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 573:1-2 (2007) 191-194
Abstract: 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.
DOI: 10.1016/j.nima.2006.10.243
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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