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Progress in the development of LuAlO3-based scintillators

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8 Author(s)
Belsky, A.N. ; Synchrotron Radiat. Lab., Lomonosov (M.V.) State Univ., Moscow, Russia ; Auffray, E. ; Lecoq, P. ; Dujardin, C.
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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

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Nuclear Science, IEEE Transactions on  (Volume:48 ,  Issue: 4 )