PHOTOCHROMIC EFFECT AND ITS INFLUENCE ON SCINTILLATION PROPERTIES OF CDWO4 AND PBWO4 CRYSTALS

Authors
BONDAR VG BURACHAS SF KATRUNOV KA MARTINOV VP RYZHIKOV VD MANKO VI GUTBROD HH TAMULAITIS G
Citation
Vg. Bondar et al., PHOTOCHROMIC EFFECT AND ITS INFLUENCE ON SCINTILLATION PROPERTIES OF CDWO4 AND PBWO4 CRYSTALS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 411(2-3), 1998, pp. 376-382
Citations number
17
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
411
Issue
2-3
Year of publication
1998
Pages
376 - 382
Database
ISI
SICI code
0168-9002(1998)411:2-3<376:PEAIIO>2.0.ZU;2-D
Abstract
Absorption induced in PbWO4 and CdWO4 scintillation crystals by UV and gamma-ray irradiation was investigated by observing the dynamics of t he absorption spectra after the irradiation of the samples with quanta of different energies and time evolution of the darkening effect at d ifferent rates of the irradiation. Dependence of the irradiation-induc ed absorption on growth conditions of the crystals, as well as bleachi ng of the samples by hearing and illumination with visible light were studied. Trapping of free carriers at structural defects related with oxygen content in the lattice was shown to result in the creation of c olor centers in both tungstates under investigation. (C) 1998 Elsevier Science B.V. All rights reserved.