Real-time radiation dosimetry using P-doped silica optical fiber

Zubair, H.T. and Oresegun, A. and Rahman, A.K.M. Mizanur and Ung, Ngie Min and Mat Sharif, Khairul A. and Zulkifli, M.I. and Yassin, S.Z. Muhd and Maah, Mohd Jamil and Yusoff, Zulfadzli and Abdul-Rashid, Hairul Azhar and Bradley, David Andrew and Omar, Nasr Y.M. (2019) Real-time radiation dosimetry using P-doped silica optical fiber. Measurement, 146. pp. 119-124. ISSN 0263-2241, DOI

Full text not available from this repository.
Official URL:


Radiation dosimetry applications related to radiotherapy have clear importance in determining the accurate and safe delivery of patient prescribed doses. Versatile yet robust, high spatial resolutions, wide dynamic range real-time forms of dosimetry are called for. Doped silica optical fibers of sub-mm spatial resolution exhibit useful radioluminescence (RL) properties when exposed to ionizing radiation. In this study, primary investigations have been carried out on phosphorus-doped silica optical-fiber. High-energy clinical X-ray beams (6 MV and 10 MV) were used to irradiate the optical fiber, RL response being recorded for six dose-rates (between 100 MU/min and 600 MU/min) delivered by a Varian 2100 C/D linear accelerator. The P-doped optical-fiber showed linear RL response, with minimal observable memory and afterglow and plateau effects. The results indicate the P-doped optical-fiber dosimeter to have strong potential for use in radiotherapy applications.

Item Type: Article
Uncontrolled Keywords: Radioluminescence; Radiation dosimetry; Optical-fiber dosimeter; Dose-rate; Phosphorus; Silica
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
R Medicine
Divisions: Faculty of Medicine
Faculty of Science > Department of Chemistry
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 31 Oct 2019 04:17
Last Modified: 31 Oct 2019 04:17

Actions (login required)

View Item View Item