Model-based pulse shape correction for CdTe detectors

Authors
Bargholtz, C Fumero, E Martensson, L
Citation
C. Bargholtz et al., Model-based pulse shape correction for CdTe detectors, NUCL INST A, 434(2-3), 1999, pp. 399-411
Citations number
12
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
434
Issue
2-3
Year of publication
1999
Pages
399 - 411
Database
ISI
SICI code
0168-9002(19990921)434:2-3<399:MPSCFC>2.0.ZU;2-O
Abstract
We present a systematic method to improve energy resolution of CdTe-detecto r systems with full control of the efficiency. Sampled pulses and multiple amplifier data are fitted by a model of the pulse shape including the depos ited energy and the interaction point within the detector as parameters. We show the decisive improvements of spectral resolution and photo-peak effic iency that is obtained without distortion of spectral shape. The informatio n concerning the interaction depth of individual events can be used to disc riminate between beta particles and gamma quanta. (C) 1999 Elsevier Science B.V. All rights reserved.