A digital spectrometer for `optimum´ pulse processing

Author

Fazzi, A. ; Varoli, V.

Author_Institution

Politecnico di Milano, Italy

Volume

45

Issue

3

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

843

Lastpage

848

Abstract

A complete digital spectroscopy system supporting the `optimum´ filtering has been designed, built and tested. The optimum filtering has proven to be the best processing algorithm with respect to the achievable energy resolution. The full system has been implemented in a PC, using a dedicated board for the data acquisition and the CPU of the PC for the digital processing. The code is written in C-language, focused on reducing the execution time, thus reaching a throughput of 1000 pulses per second using a Pentium 100 MHz and processing 12 samples for each pulse. With this optimized code, the processing time increases only linearly with the number of samples per pulse in spite of the algorithm being quadratic. A large variety of high resolution and medium rate applications can fruitfully take advantage of this `optimum´ digital spectroscopy system

Keywords

X-ray spectroscopy; data acquisition; gamma-ray spectroscopy; signal processing; C-language; data acquisition; digital spectrometer; digital spectroscopy system; energy resolution; optimum filtering; optimum pulse processing; processing time; Detectors; Digital signal processing; Energy resolution; Filtering; Filters; Pulse shaping methods; Signal processing algorithms; Spectroscopy; Throughput; Vectors;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.682648

Filename

682648