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Sensors 2015, 15(11), 29003-29014; doi:10.3390/s151129003

Feasibility of Ultra-Thin Fiber-Optic Dosimeters for Radiotherapy Dosimetry

1
School of Biomedical Engineering, College of Biomedical & Health Science, BK21 Plus Research Institute of Biomedical Engineering, Konkuk University, 322 Danwol-dong, Chungju-si, Chungcheongbuk-do 380-701, Korea
2
Research Center for Radiotherapy, Korea Institute of Radiological and Medical Sciences, 215-4, Gongneung-dong, Nowon-gu, Seoul 139-706, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 28 August 2015 / Revised: 11 November 2015 / Accepted: 12 November 2015 / Published: 17 November 2015
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [1154 KB, uploaded 17 November 2015]   |  

Abstract

In this study, prototype ultra-thin fiber-optic dosimeters were fabricated using organic scintillators, wavelength shifting fibers, and plastic optical fibers. The sensor probes of the ultra-thin fiber-optic dosimeters consisted of very thin organic scintillators with thicknesses of 100, 150 and 200 μm. These types of sensors cannot only be used to measure skin or surface doses but also provide depth dose measurements with high spatial resolution. With the ultra-thin fiber-optic dosimeters, surface doses for gamma rays generated from a Co-60 therapy machine were measured. Additionally, percentage depth doses in the build-up regions were obtained by using the ultra-thin fiber-optic dosimeters, and the results were compared with those of external beam therapy films and a conventional fiber-optic dosimeter. View Full-Text
Keywords: fiber-optic sensors; radiation dosimeter; Co-60; radiation therapy fiber-optic sensors; radiation dosimeter; Co-60; radiation therapy
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lee, B.; Kwon, G.; Shin, S.H.; Kim, J.; Yoo, W.J.; Ji, Y.H.; Jang, K.W. Feasibility of Ultra-Thin Fiber-Optic Dosimeters for Radiotherapy Dosimetry. Sensors 2015, 15, 29003-29014.

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