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The Temperature Dependence of Scintillation Parameters in PbWO 4 Crystals
Author(s) -
Millers D.,
Grigorjeva L.,
Chernov S.,
Popov A.,
Lecoq P.,
Auffray E.
Publication year - 1997
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(199710)203:2<585::aid-pssb585>3.0.co;2-8
Subject(s) - luminescence , excited state , metastability , scintillation , atomic physics , excitation , materials science , irradiation , cathode ray , electron , chemistry , optoelectronics , optics , physics , nuclear physics , detector , organic chemistry , quantum mechanics
The luminescence spectra, decay kinetics and yield of luminescence in undoped PbWO 4 crystals were studied after pulsed electron beam irradiation. The rise time of luminescence pulses shows that two mechanisms — excitonic and recombination — were involved in luminescence center excited state formation. It is proposed that excited states of WO 3 and WO 2— 4 luminescence centers were formed from some metastable state, possibly from Pb related excitation.