Accuracy and precision of loss-free counting in gamma-ray spectrometry

Authors
Pomme, S Alzetta, JP Uyttenhove, J Denecke, B Arana, G Robouch, P
Citation
S. Pomme et al., Accuracy and precision of loss-free counting in gamma-ray spectrometry, NUCL INST A, 422(1-3), 1999, pp. 388-394
Citations number
17
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
422
Issue
1-3
Year of publication
1999
Pages
388 - 394
Database
ISI
SICI code
0168-9002(19990211)422:1-3<388:AAPOLC>2.0.ZU;2-P
Abstract
The performance of a "Loss-Free Counting" (LFC) method for pulse loss compe nsation is tested on two HPGe detectors; one with classical RC feedback pre amplifier and another with Transistor Reset Preamplifier (TRP). Results are excellent on both, though extra fine-tuning precautions are required for t he latter. Pulse loss by pileup is at the origin of an increased count vari ance in LFC spectra. A new formula for LFC uncertainty is presented and its validity demonstrated for a HPGe detector set-up. (C) 1999 Elsevier Scienc e B.V. All rights reserved.