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Digital centroid-finding electronics for high-rate detectors

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5 Author(s)
Pietraski, P.J. ; Brookhaven Nat. Lab., Upton, NY, USA ; Zojceski, Z. ; Siddons, D.P. ; Smith, G.C.
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Fast centroid-finding electronics are being developed for a range of position-sensitive gas proportional detectors. Each cathode strip feeds a preamplifier, shaper and a free-running ADC. Increased total count rate is achieved by dividing the detector into several segments with parallel processing that introduces no common dead time. Each segment has central-channel finding logic and event listing realized in a FPGA, followed by a DSP that performs the centroid calculation and histogramming. Measured count-rate per segment exceeds 106 per second, with virtually no dead time

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Nuclear Science, IEEE Transactions on  (Volume:46 ,  Issue: 4 )