Title :
A new digital signal processing technique for applications in nuclear spectroscopy
Author :
Simões, Paulo C P S ; Martins, Jose C. ; Correia, Carlos M B A
Author_Institution :
Dept. de Fisica, Coimbra Univ., Portugal
fDate :
6/1/1996 12:00:00 AM
Abstract :
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
Keywords :
detector circuits; digital signal processing chips; nuclear electronics; particle spectrometers; pulse height analysers; real-time systems; signal processing; signal processing equipment; spectroscopy; spectroscopy computing; differential nonlinearity; digital signal processing technique; gaussian-shaped pulses; multichannel pulse-height-analysis system; nuclear spectroscopy; single PC-AT bus board; sliding-scale method; Communication system control; Computer architecture; Digital signal processing; Digital systems; Random access memory; Read-write memory; Signal analysis; Signal processing algorithms; Spectroscopy; Throughput;
Journal_Title :
Nuclear Science, IEEE Transactions on
