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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 23 — Nov. 18, 2013
  • pp: 27770–27779

Simultaneous measurements of pure scintillation and Cerenkov signals in an integrated fiber-optic dosimeter for electron beam therapy dosimetry

Wook Jae Yoo, Sang Hun Shin, Dayeong Jeon, Seunghan Hong, Seon Geun Kim, Hyeok In Sim, Kyoung Won Jang, Seunghyun Cho, and Bongsoo Lee  »View Author Affiliations


Optics Express, Vol. 21, Issue 23, pp. 27770-27779 (2013)
http://dx.doi.org/10.1364/OE.21.027770


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Abstract

For real-time dosimetry in electron beam therapy, an integrated fiber-optic dosimeter (FOD) is developed using a water-equivalent dosimeter probe, four transmitting optical fibers, and a multichannel light-measuring device. The dosimeter probe is composed of two inner sensors, a scintillation sensor and a Cerenkov sensor, and each sensor has two different channels. Accordingly, we measured four separate light signals from each channel in the dosimeter probe, simultaneously, and then obtained the scintillation and Cerenkov signals using a subtraction method. To evaluate the performance of the integrated FOD, we measured the light signals according to the irradiation angle of the electron beam, the depth variation of the solid water phantom, and the electron beam energy. In conclusion, we demonstrated that the pure scintillation and Cerenkov signals obtained by an integrated FOD system based on a subtraction method can be effectively used for calibrating the conditions of high-energy electron beams in radiotherapy.

© 2013 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(350.5610) Other areas of optics : Radiation
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Sensors

History
Original Manuscript: August 22, 2013
Revised Manuscript: October 11, 2013
Manuscript Accepted: October 25, 2013
Published: November 5, 2013

Virtual Issues
Vol. 9, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Wook Jae Yoo, Sang Hun Shin, Dayeong Jeon, Seunghan Hong, Seon Geun Kim, Hyeok In Sim, Kyoung Won Jang, Seunghyun Cho, and Bongsoo Lee, "Simultaneous measurements of pure scintillation and Cerenkov signals in an integrated fiber-optic dosimeter for electron beam therapy dosimetry," Opt. Express 21, 27770-27779 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-23-27770


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References

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