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Clustering method to process signals from compound semiconductor detectors
Description
The application of compound semiconductor detectors is limited by the poor mobility of holes and internal ununiformity. To improve their performance we developed new digital signal processing technique, a clustering method which derives typical patterns containing information on the real situation inside detector from measured signals and is used combining with the pattern matching method. The effectiveness of this method was verified with a CdZnTe detector of 2 mm thick and several gamma ray sources. The obtained energy resolution for Cs-137 was improved to about 8 keV (FWHM). Because the clustering method is only related to the measured waveforms, it can be applied to any type and size of detectors and is compatible with any filtering method.
Journal
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- 2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149)
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2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149) 2 9/186-9/189, 2002-11-11
IEEE