Speaker
Description
Because of their superb energy resolution and detection efficiency, inorganic crystal scintillators are widely used in HEP experiments. Future high energy physics experiments at the energy and intensity frontiers will face challenges of a severe radiation environment from both ionization dose and charged and neutral hadrons. The HL-LHC, for example, will present a very severe radiation environment, where up to 130 Mrad ionization dose, 3 × 1014 charged hadrons/cm2 and 5 × 1015 neutrons/cm2 are expected. In this paper, we report an investigation on charged hadron induced radiation damage in various crystal scintillators (BaF2, BGO, CeF3, LFS, LYSO and PWO) and a LFS/W/Quartz capillary-based Shashlik cell by using 800 MeV and 24 GeV protons at LANL and CERN respectively. Radiation-induced transmittance loss was measured in-situ before and immediately after radiation by 800 MeV proton beam at LANL. Degradations in both transmittance and light output measured after cooling-down of a few months are also reported. The results of these experiments provide important information for understanding proton-induced radiation damage in various fast crystal scintillators and their use in future HEP experiments at the energy and intensity frontiers.
