title: Thermoluminescence behaviour of KCL(1-x)Br(x):Pb2+ exposed to gamma radiation.
abstract: The thermoluminescence (TL) behaviour of solid solutions of lead doped KCl(1-x)Br(x) (X = 0.02, 0.35, 0.50, 0.65, 0.85, 1) mixed crystals exposed to gamma radiation at different doses from 60Co is reported. The TL glow curves of KCl(1-x)Br(x):Pb2+ crystal exposed in the range of 0-140 Gy is strongly dependent on composition X. The maximum temperature of the main TL glow peak was found to shift towards lower temperatures as composition X increased and a significant enhancement of the TL efficiency in KCl(1-x)Br(x):Pb2+ was found for X = 0.50 which is attributed to an increase in the vacancy concentration of the mixed halides at middle composition. The participation of the F-centre in the TL phenomenon particularly related to the main TL glow peak observed in mixed samples was also confirmed.
authors.affiliation: Instituto de Ciencias Nucleares, UNAM, Apdo. Postal 70-543, México D. F., México.
authors.forename: E
authors.initials: E
authors.lastname: Cruz-Zaragoza
authors.forename: M
authors.initials: M
authors.lastname: Barboza-Flores
authors.forename: V
authors.initials: V
authors.lastname: Chernov
authors.forename: S
authors.initials: S
authors.lastname: Ramos
authors.forename: A J
authors.initials: AJ
authors.lastname: Hernández
authors.forename: S H
authors.initials: SH
authors.lastname: Murrieta
mesh_terms: D001965:Bromides / Q000737:chemistry / Q000528:radiation effects; D003198:Computer Simulation; D004307:Dose-Response Relationship, Radiation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005720:Gamma Rays; D007854:Lead / Q000737:chemistry / Q000528:radiation effects; D008027:Light; D008422:Materials Testing; D008956:Models, Chemical; D011189:Potassium Chloride / Q000737:chemistry* / Q000528:radiation effects*; D011829:Radiation Dosage; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation* / Q000379:methods
chemical_list: D001965:Bromides; D007854:Lead; D011189:Potassium Chloride