Wetzel J.W.Tiras E.Koseyan O.Bostan N.Bilki B.Winn D.R.Onel Y.2024-03-132024-03-1320209781728176932https://doi.org/10.1109/NSS/MIC42677.2020.9507783https://hdl.handle.net/20.500.12662/28422020 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2020 -- 31 October 2020 through 7 November 2020 -- -- 176716We report preliminary results from in situ monitoring of an optical scintillating fiber while being exposed to a cesium-173 gamma radiatior. We measured the degradation of fiber transmittance across the visible spectrum as a function of time. We observed that the region below 500 nm was degraded quickly and thoroughly while wavelengths above 500 nm lost clarity more slowly. © 2020 IEEEeninfo:eu-repo/semantics/closedAccessConference Object10.1109/NSS/MIC42677.2020.95077832-s2.0-85124699300N/A