Author/Authors :
Barysevich، نويسنده , , A. and Dormenev، نويسنده , , V. and Fedorov، نويسنده , , A. and Glaser، نويسنده , , M. and Kobayashi، نويسنده , , M. and Korjik، نويسنده , , M. and Maas، نويسنده , , F. and Mechinski، نويسنده , , V. and Rusack، نويسنده , , R. and Singovski، نويسنده , , A. and Zoueyski، نويسنده , , R.، نويسنده ,
Abstract :
Samples of three heavy crystalline materials: PbWO4, Bi4Si3O12, and PbF2 were irradiated in a high-intensity 24 GeV proton beam at the CERN PS to fluencies of 3.8×1013 protons/cm2. The optical transmission radiation damage was measured and all crystals show a shift of the cutoff in the transmission spectrum that is not observed when the crystals are irradiated with γ radiation. This shift of the cutoff under proton irradiation seems to be a general property of the heavy crystalline materials. A mechanism for this proton-induced transmission damage is discussed.
Keywords :
scintillation crystal , Lead tungstate , Bismuth silicate , Lead fluoride , Radiation damage , optical transmission , Electromagnetic calorimetry
