6533b7d6fe1ef96bd1266df7

RESEARCH PRODUCT

Radiation resistance and optical properties of lead fluoride Cherenkov crystals

H. StröherI. AltarevT. HammelD. Von HarrachF. E. MaasE. SchillingA. Lopes GinjaK. GrimmS. KöbisJ. HoffmannH. HofmannPatrick AchenbachE. M. Kabuß

subject

PhysicsNuclear and High Energy Physicsbusiness.industryCalorimetrymedicine.disease_causeWavelengthmedicineRadiation damageDegradation (geology)OptoelectronicsAbsorption (electromagnetic radiation)businessInstrumentationUltravioletCherenkov radiationRadiation resistance

description

Abstract Optical properties of large size lead fluoride (PbF 2 ) crystals of three different manufacturers and their degradation caused by 60 Co γ-radiation have been investigated. Transmission losses have been systematically studied at absorbed energy doses between 0.1 and 7 kGy. Several radiation induced absorption bands have been observed. Optical bleaching with light of wavelengths ≳365 nm has been found very effective to restore the original characteristics even after repeated irradiations. This observation together with the high density and the ultraviolet extended transmission make PbF 2 an excellent choice for high rate and high resolution e.m. calorimetry.

https://doi.org/10.1016/s0168-9002(98)00748-7