Speaker
Ren-Yuan Zhu
(California Institute of Technology)
Description
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. This paper reports an investigation on proton induced radiation damage in various crystal scintillators. Large size BGO, CeF3, LYSO and PWO crystals of 15 to 22 cm long were irradiated by 800 MeV protons at the Weapons Neutron Research facility of Los Alamos Neutron Science Center up to 3 × 10^{15} p/cm^2 with degradation and recovery of their longitudinal transmittance measured in situ. LYSO plates of 14×14×1.5 mm^3 were irradiated by 67 MeV protons at Crocker facility of UC Davis up to 9.5 × 10^{13} p/cm^2, and by 24 GeV protons at the IRRAD facility at CERN up to 8.2 × 10^{15} p/cm^2. Degradations in both transmittance and light output are reported. The results show an excellent radiation hardness of LYSO crystals against charged hadrons.
Primary author
Ren-Yuan Zhu
(California Institute of Technology)
Co-authors
Fan Yang
(California Institute of Technology)
Jon Kapustinsky
(Los Alamos National Laboratory)
Liyuan Zhang
(California Institute of Technology)
Ron Nelson
(Los Alamos National Laboratory)
Zhehui Wang
(Los Alamos National Laboratory)
