Yasmin, S. and Khandaker, Mayeen Uddin * and Rozaila, Z. S. and Rashid, M. A. and Bradley, D.A. * and Sani, S.F. A. (2020) Thermoluminescence features of commercial glass and retrospective accident dosimetry. Radiation Physics and Chemistry, 168. p. 108528. ISSN 0969-806X
Full text not available from this repository. (Request a copy)Abstract
Five window glass brands popularly used in Bangladeshi dwellings have been analyzed for retrospective accident dosimetry, being inexpensive, highly effective as a barrier to moisture and naturally transparent at optical wavelengths. In examining their potential for dosimetry, study has been made of the annealing – irradiation - readout steps contributing to characterization of the various key thermoluminescence properties. These include the respective glow curves, relative sensitivity, dose response, energy response, reproducibility and fading. An ERESCO model 200 MF4-RW X-ray machine and a Gammacell-220 60Co source was used for sample irradiation, while a Harshaw 3500 TLD reader (USA) supported by WinREMS software was used for TL readouts. Within the γ-radiation dose range up to 50 Gy, the various TL parameters show Nasir glass (a locally produced glass brand) to offer the most promising performance for retrospective dosimetry. Fading studies indicate the reconstruction of absorbed dose to be possible for periods of up to four weeks post-exposure. Energy dispersive X-ray analysis shows the Zeff of the various glass to be in the range 12.5–15.1, closely according with that of TLD-200, a commercial dosimeter used for low-level environmental radiation dosimetry. Present work constitutes the first such study of low-cost commercial glass for doses in the range 10–50 Gy, previous literature relating to doses from 50 Gy up to 20 kGy.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Commercial glass; TL dosimetric properties; Nasir glass; Fading; Retrospective dosimeter |
| Subjects: | R Medicine > R Medicine (General) > R895-920 Medical Physics/Medical Radiology |
| Divisions: | Others > Non Sunway Academics Sunway University > School of Medical and Life Sciences [formerly School of Healthcare and Medical Sciences until 2020] > Centre of Biomedical Physics [wef 2021 changed to Research Centre for Applied Physics and Radiation Technologies and moved to SET ] |
| Depositing User: | Dr Janaki Sinnasamy |
| Related URLs: | |
| Date Deposited: | 12 Mar 2021 07:41 |
| Last Modified: | 12 Mar 2021 07:41 |
| URI: | http://eprints.sunway.edu.my/id/eprint/1612 |
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