Thermoluminescence response of ge-doped optical fiber dosimeters with different core sizes


Abdul Rashid, Hairul Azhar and Mizanur Rahman, A. K. M. and Wan Abdullah, Wan Saffiey and Mohd Noor, N. and Zulkifli, M. I and Muhamad Yasin, S. Z. and Mat Sharif, Khairul A. and Tamchek, Nizam and Mat Nawi, S. N and Wahib, N. and Mohd Amin, Yusoff and Bradley, David Andrew and Begum, Mahfuza Sharmila (2013) Thermoluminescence response of ge-doped optical fiber dosimeters with different core sizes. In: 2013 IEEE 4th International Conference Photonics (ICP). IEEE, pp. 291-293. ISBN 978-1-4673-6073-9

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Thermoluminescence (TL) properties of five different core diameter of 6 mol% germanium (Ge) doped optical fibers have been investigated for the purpose of TL dosimetry. The optical fiber dosimeter TL properties is compared with commercially available TLD-100 chips (LiF:Mg,Ti). Samples were irradiated using Cobalt-60 standard radiation source ranging from 1Gy to 10 Gy. These fibers show good linear dose response up to 10 Gy. Highest core diameter of Ge doped optical fiber (core 100 μm) provides the best response among all fibers. We observe the larger core fiber show better response than smaller core fiber. The relative sensitivity of 100 μm core optical fiber is 0.26 ± 0.04 with respect to TLD-100 chip.

Item Type: Book Section
Uncontrolled Keywords: radiation dosimeter, doped optical fiber, TLD-IOO, thermoluminescence (TL)
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA1501-1820 Applied optics. Photonics
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Nurul Iqtiani Ahmad
Date Deposited: 03 Mar 2014 06:21
Last Modified: 02 Feb 2017 08:41


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