Collapsed photonic crystal fibre thermoluminescence dosimetry for external beam radiotherapy. Issue 1 (March 2023)

• Record Type: Journal Article
• Authors: Begum, Mahfuza; Almohammed, Huda I.; Rahman, A.K.M. Mizanur; Abdul-Rashid, H.A.; Yusoff, Z.; Hamd, Zuhal Y.; Khandaker, Mayeen Uddin; Bradley, D.A.
• Is Part Of: Journal of Radiation Research and Applied Sciences. Volume 16:Issue 1(2023)
• Publication Date: 2023-03
• Subjects: Percentage depth doses (PDD) -- Threshold dose -- Reproducibility -- Dose-rate dependency -- Ge-doped collapsed photonic crystal fibre (PCF) -- Solid water equivalent phantoms; Ionizing radiation -- Periodicals; Nuclear physics -- Periodicals; Radiation; Radiation; Periodicals; 539.7
• DOI: 10.1016/j.jrras.2023.100526
• Languages: English
• ISSNs: 1687-8507

Abstract

Abstract: In measuring exposure to ionizing radiation various detectors and techniques have been developed. Current investigation is of key TL dosimetric responses of Ge-doped collapsed photonic crystal fibre (PCF), a form offering the advantage of greater sensitivity compared to more conventional single-mode optical fibers. The PCF samples that have been studied herein have been used to obtain external photon beam percentage depth doses (PDD), elevated sensitivity being desirable in providing a basis for the capture of the range of doses. Using a linac operated at 6 and 10 MV, the results show a favourable comparison with ionization chamber values (typically to within 5%). Threshold dose, reproducibility, and dose-rate dependency have also been characterized.