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A new digital signal processing technique for applications in nuclear spectroscopy

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3 Author(s)
P. C. P. S. Simoes ; Dept. de Fisica, Coimbra Univ., Portugal ; J. C. Martins ; C. M. B. A. Correia

A multichannel pulse-height-analysis system based on digital signal processing techniques was developed and tested for nuclear spectroscopy. The system digitizes gaussian-shaped pulses with widths greater than 2 μs. Input pulses are completely processed in real time on a single PC-AT bus board that replaces the standard analog pulse-height analyzer boards. Using a modified sliding-scale method, differential nonlinearity has been reduced to 1 to 2% for 4096 channels. A 30% increase in pulse throughput rate at 1 kHz has been achieved by reducing overall system dead time. Other potential advantages will be explored in future work

Published in:

IEEE Transactions on Nuclear Science  (Volume:43 ,  Issue: 3 )