Characterization studies of purified HgI2 precursors

Citation
M. Schieber et al., Characterization studies of purified HgI2 precursors, NUCL INST A, 428(1), 1999, pp. 25-29
Citations number
16
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
428
Issue
1
Year of publication
1999
Pages
25 - 29
Database
ISI
SICI code
0168-9002(19990601)428:1<25:CSOPHP>2.0.ZU;2-J
Abstract
The ability of HgI2 powders, used as precursors in mercuric iodide crystal growth, to produce high-quality detectors may be predicted by non-destructi ve methods like photoluminescence. In fact, it is possible to correlate the presence and the intensity ratio of specific bands in the photoluminescenc e spectrum of a HgI2 crystal to its impurity content and stoichiometry. The se quantities determine the detector grade that may be achieved using that starting material. Nine different HgI2 precursors, obtained by different pu rification methods, have been characterized. The lowest impurity content is achieved via poly-ethylene treatment, which gives also a powder of relativ ely good stoichiometric quality. (C) 1999 Elsevier Science B.V. All rights reserved.