The potential of decorative building materials (marble) for retrospective thermoluminescence dosimetry.

Autor: Yasmin S; Department of Physics, Chittagong University of Engineering and Technology, Chattogram, Bangladesh. Electronic address: sabinayasmin309@gmail.com., Khandaker MU; Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500 Bandar Sunway, Selangor, Malaysia., Nawi SNM; Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500 Bandar Sunway, Selangor, Malaysia; Department of Physics, University of Malaya, 50603 Kuala Lumpur, Malaysia., Sani SFA; Department of Physics, University of Malaya, 50603 Kuala Lumpur, Malaysia., Bradley DA; Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500 Bandar Sunway, Selangor, Malaysia; Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom., Islam MA; Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
Jazyk: angličtina
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2021 Sep; Vol. 175, pp. 109782. Date of Electronic Publication: 2021 May 21.
DOI: 10.1016/j.apradiso.2021.109782
Abstrakt: Among the various types of decorative materials used in Bangladeshi dwellings, the marble/marble stone is one of the most common ones that used largely for enhancing the beauty and/or aristocracy of the dwelling environment. In this study, the most commonly used, six types of marble stones, have been analyzed for retrospective accident dosimetry. With the interest of characterizing several key thermoluminescence properties to examine their potentiality for dosimetry, annealing - irradiation - readout steps have been done chronologically which comprises the analysis of glow curves, relative sensitivity, dose dependence, repeatability and fading. Considering the various TL parameters, marble 'Carrara' imported from Italy present relatively better capability for reconstruction of radiation dose in the dose range of 10-50 Gy. From fading result, it is clear that for reconstruction of absorbed dose up to four weeks of post exposure, the marble 'Carrara' is found to be the most reliable media among the studied marble types. The Z eff values for the various marble samples are found to be in the range of 13.65-19.12, comparing favorably in replace of TLD-200 (Z eff  = 16.3) which can be used for low-level environmental radiation dosimetry. Present work constitutes the first study to investigate the potentials of marble stone for reconstruction of absorbed dose in the range of 10-50 Gy dose.
(Copyright © 2021 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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