| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1830146 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2007 | 4 Pages |
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 Ω 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 μm (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.
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Authors
H. Natal da Luz, J.F.C.A. Veloso, J.M.F. dos Santos, J.A. Mir,