Author:
Hussain Naseer J.,Badran Hussain A.,Abul-hial Riyadh Ch.,Abed Rana A.
Abstract
The goal of this work was to evaluate the thermoluminescence features of Himalayan salt (HS) for the purpose of radiation dosimetry. As a result of its low cost, widespread availability in the market, and similarity to the tissues found in the human body. Irradiation of the samples was performed with a radiation source that utilised 137Cs. With a heating rate of 15 degrees Celsius per second and a final temperature of 320 degrees Celsius, the samples were subjected to TL analysis with the help of the Harshaw Model 2000B/C TLD Reader. In commercial salt samples, the glow curve (gwc) reveals the presence of a strong glow peak at temperatures ranging from 204 to 282 degrees Celsius. For the salt sample, the grain size (gz) is exactly proportional to the total light intensity (TL) of the glow curve shown in the graph. Not only that, but the findings also demonstrate that the TL intensity of the HS has a linear relationship with dosage throughout a wide range, spanning from 250 mGy to 20 Gy. The post- irradiated fading rate are investigated and shows the rate of thermal fading of HS, found to be equal 32% at storage time for 24 days. These results indicate that this material is very interesting for useful for TL-dosimetric applications.
Publisher
College of Education for Pure Science, University of Basrah
Reference29 articles.
1. H. James and W. Dale "Color Center In Solid" Pergamon Press,Oxford. Landon.New York. Paris 1963.
2. G. Schaeer, j. phys , Chem. solid 12, 233 1960.
3. P. Zsigmond "Morphological and microchemical characterization of Himalayan salt samples," Rev. Roum. Chim, vol. 61, pp. 169-174, 2016.
4. C. Palache, H. Berman, and C. Frondel, "The System of Mineralogy of JD Dana and ES Dana, 7th Edit," ed: Wiley, New York, 1951.
5. I. Bailiff, "Retrospective dosimetry with ceramics," Radiation Measurements, vol. 27, pp. 923-941, 1997. Doi:https://doi.org/10.1016/S1350-4487(97)00217-5