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Title: Synthesis and study on the luminescence properties of cadmium borate phosphors

Highlights: • Cadmium borate synthesized by solid state sintering technique. • Neutron sensitivity of the material ten times that of TLD-600. • Gamma sensitivity is found to be twice that of TLD-100. • Gamma response is linear from 0.1 to 10{sup 3} mGy. - Abstract: Cadmium borate compound prepared through wet chemical reaction from the starting chemicals followed by high temperature solid state synthesis below the melting point to get the final TL phosphor powder. Phase purity and bond details of cadmium borate crystals are characterized using X-ray diffraction technique and infrared spectroscopy. Feasibility of these materials for radiation dosimetry applications was studied after gamma and neutron irradiation. Gamma irradiation of undoped phosphors show a single peak around 185 °C whereas doping with gadolinium and silver, new more intense peak observed at 290 °C. Irradiation to thermal neutrons revealed single peak around 170 °C for all the phosphors. TL emission spectra and photoluminescence (PL) studies were also carried out on the phosphors. These borate materials are found to be highly sensitive to neutrons and hence can be used for neutron detection. Neutron sensitivity of the material is about ten times that of TLD-600.
Authors:
 [1] ;  [1] ;  [1] ;  [2]
  1. Radiological Safety Division, Indira Gandhi Center for Atomic Research, Kalpakkam 603102, Tamilnadu (India)
  2. Materials Physics Division, Indira Gandhi Center for Atomic Research, Kalpakkam 603102, Tamilnadu (India)
Publication Date:
OSTI Identifier:
22345237
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 50; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTROSCOPY; BORATES; CADMIUM; CRYSTALS; DOSIMETRY; EMISSION SPECTRA; GADOLINIUM; GAMMA RADIATION; INFRARED SPECTRA; IRRADIATION; MELTING POINTS; NEUTRON DETECTION; PHOSPHORS; PHOTOLUMINESCENCE; SENSITIVITY; SILVER; SOLIDS; SYNTHESIS; THERMAL NEUTRONS; X-RAY DIFFRACTION