Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2008-04-29
Nucl.Instrum.Meth.A595:460-463,2008
Physics
Nuclear Physics
Nuclear Experiment
10 pages, 7 figures
Scientific paper
10.1016/j.nima.2008.07.024
Performance of a simple method of particle identification via pulse rise time discrimination is demonstrated for slow pulses from charge-sensitive preamplifiers with rise times ranging from 10 ns to 500 ns. The method is based on a comparison of the amplitudes of two pulses, derived from each raw preamplifier pulse with two amplifiers with largely differing shaping times, using a fast peak-sensing ADC. For the injected charges corresponding to energy deposits in silicon detectors of a few tens of MeV, a rise time resolution of the order of 1 ns can be achieved. The identification method is applicable in particle experiments involving large-area silicon detectors, but is easily adaptable to other detectors with a response corresponding to significantly different pulse rise times for different particle species.
Gawlikowicz Wojtek
Quinlan Michael J.
Schroder Udo W.
Toke Jan
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