@inproceedings{5a6b4dbdda6a495cb1e47b039d2ea74b,
title = "Separation of {\v C}erenkov radiation in irradiated optical fibers by optical spectroscopy",
abstract = "We studied {\v C}erenkov radiation generated in irradiated optical fibers and demonstrated a generic spectroscopic method for separation of {\v C}erenkov radiation from the transmitted signal in fiber optic dosimetry based on the assumption that the recorded signal is a linear superposition of two basis spectra: {\v C}erenkov radiation and characteristic luminescence of the phosphor medium. Experimentally, we evaluated thistechnique by using fiber optic probes irradiated by electron beams generated by a clinical linear accelerator. This method can be used for optical characterization of various scintillating materials, such as phosphor nanoparticles, in ionizing radiation fields of high energy. We performed MonteCarlo simulations of the {\v C}erenkov radiation generated in the fiber and found astrong dependence of the recorded {\v C}erenkov radiation on the numerical aperture of the fiber at shallow phantom depths; however, beyond the depth of maximum dose that dependency is minimal. Oursimulation results agree well withthe experimental results for {\v C}erenkov radiation generated in fibers irradiated with 6 MeV electrons.",
keywords = "Dosimetry, Fiber optic, Ionizing radiation, Spectroscopy, {\v C}erenkov radiation",
author = "Arash Darafsheh and Rongxiao Zhang and Kanick, {Stephen C.} and Pogue, {Brian W.} and Finlay, {Jarod C.}",
note = "Publisher Copyright: {\textcopyright} 2015 SPIE.; Design and Quality for Biomedical Technologies VIII ; Conference date: 07-02-2015 Through 08-02-2015",
year = "2015",
doi = "10.1117/12.2079441",
language = "English",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
publisher = "SPIE",
editor = "Rongguang Liang and Ramesh Raghavachari",
booktitle = "Design and Quality for Biomedical Technologies VIII",
}