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Title: Influence of γ-dose, dopant/codopant and heating rate on thermoluminescence properties of CaWO{sub 4} phosphors

A series of Ca{sub 1-2x}K{sub x}Dy{sub x}WO{sub 4} (x = 0.02, 0.03, 0.04) phosphors were prepared by solid state reaction method and their thermoluminescence properties were investigated. Before thermoluminescence measurements, the sample was heated to 300°C for 1hour and then quenched to room temperature to erase out all the previous radiation memory. The prepared phosphors were irradiated by γ-ray in the dose range 1KGy–5KGy and their glow curves were recorded at an uniform rate of 5°C/s. In order to see the effect of heating rate as well as concentration of dopant/codopant, TL glow curves were also recorded by heating the samples at the rate of 3°C/s and 7°C/s as well as by varying the concentration x = 0.02, 0.03, 0.04.
Authors:
;  [1]
  1. Department of Applied Physics, Indian School of Mines, Dhanbad 826004 (India)
Publication Date:
OSTI Identifier:
22488857
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal Issue: 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 61 RADIATION PROTECTION AND DOSIMETRY; ABUNDANCE; CALCIUM TUNGSTATES; CONCENTRATION RATIO; DYSPROSIUM COMPOUNDS; GLOW CURVE; HEATING RATE; IRRADIATION; POTASSIUM COMPOUNDS; RADIATION DOSES; SOLIDS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; THERMOLUMINESCENCE