Measurements on a prototype segmented Clover detector

Citation
Sl. Shepherd et al., Measurements on a prototype segmented Clover detector, NUCL INST A, 434(2-3), 1999, pp. 373-386
Citations number
19
Language
INGLESE
art.tipo
Article
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
0168-9002 → ACNP
Volume
434
Issue
2-3
Year of publication
1999
Pages
373 - 386
Database
ISI
SICI code
0168-9002(19990921)434:2-3<373:MOAPSC>2.0.ZU;2-5
Abstract
The performance of a segmented Clover germanium detector has been measured. The segmented Clover detector is a composite germanium detector, consistin g of four individual germanium crystals in the configuration of a four-leaf Clover, housed in a single cryostat. Each crystal is electrically segmente d on its outer surface into four quadrants, with separate energy read-outs from nine crystal zones. Signals are also taken from the inner contact of e ach crystal. This effectively produces a detector with 16 active elements. One of the purposes of this segmentation is to improve the overall spectral resolution when detecting gamma radiation emitted following a nuclear reac tion, by minimising Doppler broadening caused by the opening angle subtende d by each detector element. Results of the tests with sources and in beam w ill be presented. The improved granularity of the detector also leads to an improved isolated hit probability compared with an unsegmented Clover dete ctor. (C) 1999 Elsevier Science B.V. All rights reserved.