Abstract
In this study, we used a charge coupled device to measure scintillating and Cerenkov light generated in a scintillating fiber-optic radiation sensor irradiated by high-energy photon and electron beams. The intensities of Cerenkov light are measured and characterized as a function of the incident angles of the high-energy photon and electron beams from a clinical linear accelerator. To minimize or remove Cerenkov light, we investigated a subtraction method using a dummy optical fiber and a wavelength discrimination method using optical filters. Also, the intensities of Cerenkov light induced by high-energy photon and electron beams are compared.
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