Title :
Investigation of Eu
Doped Barium Silicates as Scintillators
Author :
Eagleman, Yetta ; Bourret-Courchesne, Edith ; Derenzo, Stephen E.
Author_Institution :
Lawrence Berkeley Nat. Lab., Berkeley, CA, USA
fDate :
4/1/2012 12:00:00 AM
Abstract :
Room-temperature scintillation properties were determined for five Eu2+ doped compounds in the Ba-Si-O ternary system: Ba2SiO4, BaSiO3, Ba2Si3O5, Ba5Si8O21, and BaSi2O5. These materials were synthesized as polycrystalline powders from conventional solid-state reactions. Of the materials studied, Ba2SiO4: 0.2% Eu2+ is the most luminous scintillator having a luminosity of 2.7 times the reference material, Bi4Ge3O12. Its scintillation decay curve is comprised of two components with lifetimes of 242 and 668 ns.
Keywords :
barium compounds; positive ions; powders; radiation detection; scintillation; solid scintillation detectors; Ba-Si-O ternary system; Ba2Si3O8; Ba2Si3O8:Eu2+; Ba2SiO4; Ba2SiO4:Eu2+; Ba5Si8O21; Ba5Si8O21:Eu2+; BaSi2O5; BaSi2O5:Eu2+; BaSiO3; BaSiO3:Eu2+; Bi4Ge3O12; Eu2+ doped barium silicates; Eu2+ doped compounds; polycrystalline powders; radiation detection; room-temperature scintillation properties; scintillation decay curve; scintillator luminosity; solid-state reactions; Barium; Compounds; Luminescence; Powders; Silicon; Temperature measurement; Europium; radiation detection; scintillation; silicates;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2011.2179559