Abstract
This paper reports thermoluminescence characteristics of thermoluminescence dosimetry 100 chips and Yb–Tb-doped optical fibers irradiated with 6 and 10 MV photons. Thermoluminescence response of both dosimeters increases over a wide photon dose range from 0.5 to 4 Gy. Yb–Tb-doped optical fibers demonstrate useful thermoluminescence properties and represent a good candidate for thermoluminescence dosimetry application with ionizing radiation. The results of this fiber have been compared with those of commercially available standard thermoluminescence dosimetry-100 media. Commercially available Yb–Tb-doped optical fibers and said standard media are found to yield a linear relationship between dose- and thermoluminescence signal, although Yb–Tb-doped optical fibers provide only 10 % of the sensitivity of thermoluminescence dosimetry-100. With better thermoluminescence characteristics such as small size (125 μm diameter), high flexibility, easy of handling and low cost, as compared to other thermoluminescence materials, indicate that commercial Yb–Tb-doped optical fiber is a promising thermoluminescence material for variety of applications.
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Acknowledgments
Authors would like to thank Mr. Hasan Ali, Department of Oncology and Radiation therapy, Hospital Sultan Ismail, Johor Barhu for his help in performing the irradiations, the Ministry of Higher Education (MOHE) for providing a research grant and Universiti Teknologi Malaysia (UTM) for supporting a student research project. I. Hossain thanks to King Abdulaziz University to support a fund to complete this project.
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Sahini, M.H., Wagiran, H., Hossain, I. et al. Thermoluminescence properties of Yb–Tb-doped SiO2 optical fiber subject to 6 and 10 MV photon irradiation. Indian J Phys 88, 843–847 (2014). https://doi.org/10.1007/s12648-014-0479-5
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DOI: https://doi.org/10.1007/s12648-014-0479-5