AN OPTIMUM DIGITAL SIGNAL-PROCESSING FOR RADIATION SPECTROSCOPY

被引：11

作者：

BERTUCCIO, G ^{[1
]}

FAZZI, A ^{[1
]}

GERACI, A ^{[1
]}

SAMPIETRO, M ^{[1
]}

机构：

[1] POLITECN MILAN,DIPARTIMENTO INGN NUCL,I-20133 MILAN,ITALY

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1994年 / 353卷 / 1-3期

关键词：

D O I：

10.1016/0168-9002(94)91651-9

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

When resolution is a primary requirement in high performance spectroscopy systems, the signal pulse filtering should approach the theoretical optimum weighting function. This goal, almost impossible to reach with analog filtering especially when 1/f noise is dominant, is achieved by the presented digital signal processor. It synthesizes the optimum weighting function by exploiting experimentally measured noise. The energy resolution dependence on the experimental settings is reported. Those include the number of samples acquired per pulse, the sampling frequency and the bandwidth of the antialiasing filter. An experimental comparison against the best analog filter shows an improvement of more than 10% in energy resolution.

引用

页码：257 / 260

页数：4