The influence of defect states on scintillation characteristics of PbWO4

Authors
Baccaro, S Bohacek, P Cecilia, A Dafinei, I Diemoz, M Fabeni, P Ishii, M Kobayashi, M Martini, M Mihokova, E Nikl, M Pazzi, GP Rosa, J Usuki, Y Vedda, A
Citation
S. Baccaro et al., The influence of defect states on scintillation characteristics of PbWO4, RADIAT EFF, 150(1-4), 1999, pp. 15-19
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
RADIATION EFFECTS AND DEFECTS IN SOLIDS
ISSN journal
10420150 → ACNP
Volume
150
Issue
1-4
Year of publication
1999
Pages
15 - 19
Database
ISI
SICI code
1042-0150(1999)150:1-4<15:TIODSO>2.0.ZU;2-R
Abstract
lThe effect of several stable trivalent ions (Lu, Y and Gd) and pentavalent Nb5+ on the radiation resistance and thermoluminescence characteristics of PbWO4 is investigated. While rather uniform behaviour is observed for all the trivalent ions, apparently different mechanisms apply in the case of th e Nb doping. This fact could be explained by different effect of the dopant s on the oxygen sublattice, namely on the concentration of oxygen vacancies . Electron centres based on oxygen vacancy(ies) participate in thermolumine scence processes round 200 K.