Title :
Progress in the development of LuAlO3-based scintillators
Author :
Belsky, A.N. ; Auffray, E. ; Lecoq, P. ; Dujardin, C. ; Garnier, N. ; Canibano, H. ; Pedrini, C. ; Petrosyan, A.G.
Author_Institution :
Synchrotron Radiat. Lab., Lomonosov (M.V.) State Univ., Moscow, Russia
fDate :
8/1/2001 12:00:00 AM
Abstract :
LuAP:Ce and mixed LuYAP:Ce crystals are the promoted scintillation materials for positron emission tomography. These scintillators are presently being studied in three directions: 1) growth of large crystals with stable properties; 2) establishment of relationships between the composition of LuYAP:Ce crystals and the scintillation properties; and 3) scintillation mechanisms in lutetium compounds. We performed the first bunch of 16 LuYAP:Ce crystals with size for the detector module (2×2×10 mm3). The crystals show good correlation among growth parameters, light yield, and transmission spectra. To clarify the scintillation mechanism in LuAP:Ce and LuYAP:Ce crystals, measurements of absorption, emission, and excitation spectra of thermoluminescence and scintillation decay curves have been performed
Keywords :
cerium; lutetium compounds; positron emission tomography; scintillation; solid scintillation detectors; thermoluminescence; LuAP:Ce; LuAlO3-based scintillators; LuAlO3:Ce; LuYAP:Ce; LuYAlO3:Ce; growth parameters; light yield; mixed LuYAP:Ce crystals; positron emission tomography; scintillation decay curves; thermoluminescence; transmission spectra; Cerium; Crystals; Energy exchange; Laboratories; Lattices; Mechanical factors; Performance evaluation; Positron emission tomography; Solids; Spectroscopy;
Journal_Title :
Nuclear Science, IEEE Transactions on
