Thermoluminescence response of flat optical fiber subjected to 9 MeV electron irradiations. (January 2015)

• Record Type: Journal Article
• Authors: Hashim, S.; Omar, S.S. Che; Ibrahim, S.A.; Hassan, W.M.S. Wan; Ung, N.M.; Mahdiraji, G.A.; Bradley, D.A.; Alzimami, K.
• Is Part Of: Radiation physics and chemistry. Volume 106(2015:Jan.)
• Page Start: 46
• Page End: 49
• Publication Date: 2015-01
• Subjects: Thermoluminescent -- Flat optical fiber -- Sensitivity -- Minimum detectable dose; Radiation chemistry -- Periodicals; Radiometry -- Periodicals; Radiation -- Periodicals; Chimie sous rayonnement -- Périodiques; 539.2
• DOI: 10.1016/j.radphyschem.2014.06.028
• Languages: English
• ISSNs: 0969-806X

Abstract

Abstract: We describe the efforts of finding a new thermoluminescent (TL) media using pure silica flat optical fiber (FF). The present study investigates the dose response, sensitivity, minimum detectable dose and glow curve of FF subjected to 9 MeV electron irradiations with various dose ranges from 0 Gy to 2.5 Gy. The above-mentioned TL properties of the FF are compared with commercially available TLD-100 rods. The TL measurements of the TL media exhibit a linear dose response over the delivered dose using a linear accelerator. We found that the sensitivity of TLD-100 is markedly 6 times greater than that of FF optical fiber. The minimum detectable dose was found to be 0.09 mGy for TLD-100 and 8.22 mGy for FF. Our work may contribute towards the development of a new dosimeter for personal monitoring purposes. Highlights: TL performance of pure silica flat optical fiber (FF) and TLD-100 rod to electron. TL glow curve with a single prominent peak between 230 and 255 °C. The sensitivity of FF is approximately 16% than TLD-100. The minimum detectable dose was 0.09 mGy for TLD-100 rod and 8.22 mGy for FF.