Radiation Damage Studies on Optical Components of Particle Detectors

The radiation exposure to particle detector components increases as collision energy and luminosity increase at the particle colliders. Each detector component needs to be a high radiation resistant to increase the longevity of the detectors and to provide robust and efficient results. We have tested several detector components such as wavelength shifting fibers, scintillators, and photomultiplier tubes up to an estimated level of dose with using ¹³⁷Cs gamma ray source. We measure the radiation damage on the samples and study recovery properties over time. This presentation will give an overview of the optical testing setups and characterization results of the detector components after exposed to a certain level of radiation.