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

Author

Begum, Momotaz ; Rahman, A. K. M. Mizanur ; Abdul-Rashid, H.A. ; Wan Abdullah, W.S. ; Mohd Noor, N. ; Zulkifli, M.I. ; Muhamad-Yasin, S.Z. ; Mat-Sharif, K.A. ; Tamchek, N. ; Mat Nawi, S.N. ; Wahib, N. ; Amin, Y.M. ; Bradley, David A.

Author_Institution

Fac. of Eng., Multimedia Univ., Cyberjaya, Malaysia

fYear

2013

fDate

28-30 Oct. 2013

Firstpage

291

Lastpage

293

Abstract

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.

Keywords

dosimetry; germanium; optical fibres; thermoluminescence; thermoluminescent dosimeters; Cobalt-60 standard radiation source; TL dosimetry; TLD-100 chip; core sizes; optical fiber dosimeters; radiation absorbed dose 1 Gy to 10 Gy; size 100 mum; thermoluminescence response; Optical fibers; Silicon compounds; Thermoluminescence; TLD-100; doped optical fiber; radiation dosimeter; thermoluminescence (TL);

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics (ICP), 2013 IEEE 4th International Conference on

Conference_Location

Melaka

Print_ISBN

978-1-4673-6073-9

Type

conf

DOI

10.1109/ICP.2013.6687142

Filename

6687142