Measurements and Characterization of Cerenkov Light in Fiber-Optic Radiation Sensor Irradiated by High-Energy Electron Beam

摘要

In general, Cerenkov light can cause a problem in detecting a real light signal that is generated in a fiber-optic radiation sensor using an organic scintillator for dose measurements of high-energy electron beams. In this study, the intensity of Cerenkov light is measured and characterized as functions of incident angles, energy, and field size of the electron beam from a LINAC (linear accelerator). To remove or minimize Cerenkov light, a subtraction method using a background optical fiber is investigated.