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https://hdl.handle.net/10316/4350| Title: | A simple X-ray position detection system based on a MHSP | Authors: | Luz, H. Natal da Veloso, J. F. C. A. Santos, J. M. F. dos Mir, J. A. |
Keywords: | Micro-Hole and Strip Plate; Gas Electron Multiplier; 2D imaging; Resistive charge division; Analogue divider; X-ray detectors | Issue Date: | 2007 | Citation: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 580:2 (2007) 1083-1086 | Abstract: | A simple system for position detection based on a Micro-Hole and Strip Plate (MHSP) using a resistive charge division method was implemented. A thin resistive layer of about 100 [Omega] between each strip (top surface) and between each anode strip (bottom surface) allows us to obtain the actual position in both orthogonal directions. The readout electronics uses only two preamplifiers, a sum and a divider circuit to calculate the interaction point, in each dimension. For a detector filled with 1 atm of pure xenon, position resolutions of less than 300 [mu]m (FWHM) were achieved using 5.9 keV X-rays, for a signal-to-noise ratio (SNR) of 30. For these conditions, a detector gain of about 104 and an energy resolution of about 15% were obtained. | URI: | https://hdl.handle.net/10316/4350 | DOI: | 10.1016/j.nima.2007.06.083 | Rights: | openAccess |
| Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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|---|---|---|---|---|
| file08d005c3c68d42c0991dccf6ab020164.pdf | 410.56 kB | Adobe PDF | View/Open |
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