Title :
Cerium bromide — Methanol adduct CeBr3(CH3OH)4: A novel lanthanide halide complex as inorganic scintillator
Author :
Van Loef, Edgar V. ; Glodo, Jarek ; Higgins, William M. ; Shah, Kanai S.
Author_Institution :
Radiat. Monitoring Devices Inc., Watertown, MA, USA
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
A novel lanthanide halide complex with formula CeBr3(CH3OH)4 was grown from anhydrous methanol solution into large single crystals. The radioluminescence spectrum of CeBr3(CH3OH)4 exhibits a broad band peaking in the near-UV due to Ce3+ 5d ¿ 4f emission. The emission is shifted to shorter wavelengths when compared to the emission of single crystal CeBr3. The light yield of CeBr3(CH3OH)4 was estimated to be about 5,000 ph/MeV when compared to a BGO crystal. The energy resolution is 15% at 662 keV. Scintillation decay time spectra under gamma-ray excitation show a fast 33 ns decay component.
Keywords :
gamma-ray effects; gamma-ray spectroscopy; luminescence; organic compounds; scintillation; solid scintillation detectors; BGO crystal comparison; CeBr3(CH3OH)4; anhydrous methanol solution; cerium bromide-methanol adduct; gamma-ray excitation; inorganic scintillator; lanthanide halide complex; light yield; radioluminescence spectrum; scintillation decay time spectra; time 33 ns; Cerium; Crystalline materials; Crystals; Energy resolution; Methanol; Solid scintillation detectors; Solvents; Temperature; Thermal stresses; Yield estimation;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5402315
