Title :
Radiation Damage of Oxy-Orthosilicate Scintillation Crystals Under Gamma and High Energy Proton Irradiation
Author :
Auffray, E. ; Fedorov, A. ; Korjik, M. ; Lucchini, Maristella ; Mechinski, V. ; Naumenko, N. ; Voitovich, A.
Author_Institution :
CERN, Geneva, Switzerland
Abstract :
Radiation damage effects in lutetium, yttrium and gadolinium oxy-orthosilicates, Lu2SiO5:Ce, Y2SiO5:Ce, Gd2SiO5:Ce under γ- and protons irradiation have been investigated. Crystals were irradiated with a 60Co gamma source to a total dose of 2000 Gy and a high-rate 24-GeV proton beam at CERN PS, to a fluence of ~3.6 ×1013 p/cm2. Color centers created under irradiation, phosphorescence and its mechanism in the crystals are discussed.
Keywords :
cerium; colour centres; gadolinium compounds; gamma-ray effects; lutetium compounds; phosphorescence; proton effects; scintillation; yttrium compounds; 60Co; 60Co gamma source; Gd2SiO5:Ce; Lu2SiO5:Ce; Y2SiO5:Ce; color centers; electron volt energy 24 GeV; gadolinium oxy-orthosilicates; gamma irradiation; high energy proton irradiation; lutetium oxy-orthosilicates; oxy-orthosilicate scintillation crystals; phosphorescence; radiation absorbed dose 2000 Gy; radiation damage; yttrium oxy-orthosilicates; Absorption; Color; Crystals; Ions; Phosphorescence; Protons; Radiation effects; Oxy-orthosilicate of lutetium; phosphorescence; radiation damage; scintillating crystal; yttrium gadolinium;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2013.2285249
