Baseline height estimation in nuclear pulse spectrometry can be optimized by using a proper weight-function. The minimum-noise weight-function for baseline estimation, constrained to a finite duration, is theoretically derived in this paper. Baseline restoration can be subsequently performed by subtracting the minimum-noise baseline estimation to the output signal pulse. The overall signal-to-noise performance obtained using minimum-noise baseline estimation for pulse height correction is compared to that obtained with routinely used Base Line Restorers. An improvement of up to 16% in the Equivalent Noise Charge, with respect to a classic fast Base Line Restorer, can be theoretically achieved in case of a simple triangular pulse shaping. The minimum-noise baseline weight-function can be synthesized in practice by means of a digital processing unit.
Minimum-noise filter for baseline estimation in radiation detection systems / A. Pullia, G. Ripamonti, D. Santo - In: 1995 IEEE Nuclear science symposium and medical imaging conference record. Volume 1Piscataway, USA : IEEE, 1995. - ISBN 0-7803-3180-X. - pp. 263-266 (( convegno Nuclear science symposium and medical imaging conference tenutosi a San Francisco, CA, USA nel 1995 [10.1109/NSSMIC.1995.504222].
Minimum-noise filter for baseline estimation in radiation detection systems
A. PulliaPrimo
;
1995
Abstract
Baseline height estimation in nuclear pulse spectrometry can be optimized by using a proper weight-function. The minimum-noise weight-function for baseline estimation, constrained to a finite duration, is theoretically derived in this paper. Baseline restoration can be subsequently performed by subtracting the minimum-noise baseline estimation to the output signal pulse. The overall signal-to-noise performance obtained using minimum-noise baseline estimation for pulse height correction is compared to that obtained with routinely used Base Line Restorers. An improvement of up to 16% in the Equivalent Noise Charge, with respect to a classic fast Base Line Restorer, can be theoretically achieved in case of a simple triangular pulse shaping. The minimum-noise baseline weight-function can be synthesized in practice by means of a digital processing unit.Pubblicazioni consigliate
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