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Publications (1)1.28 Total impact

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    ABSTRACT: The scintillation properties of LaCl<sub>3</sub> doped with different Ce<sup>3+</sup> concentrations studied by means of optical, X-ray, and γ-ray excitation are presented. Under optical and γ-ray excitation, Ce<sup>3+</sup> emission is observed peaking at 330 and 352 nm. For LaCl<sub>3</sub> doped with 2%, 4%, 10%, and 30% Ce <sup>3+</sup> and pure CeCl<sub>3</sub>, we measured a light yield of 46 000±3000 photons per MeV of absorbed γ-ray energy. The scintillation decay curve can be described by three decay components: short (τ=25 ns), intermediate (τ=200-800 ns), and long (τ=0.8-14 μs). The contribution of the short decay component to the total light yield increases with Ce<sup>3+</sup> concentration: ranging from 10% for LaCl<sub>3</sub>: 2% Ce<sup>3+</sup> to 69% for pure CeCl<sub>3</sub>. An energy resolution (full-width half-maximum over peak position) for the 662-keV full energy peak of 3.5±0.4%, 3.5±0.4%, 3.1±0.3%, 3.3±0.3%, and 3.4± 0.3%, respectively, was observed for LaCl<sub>3</sub>: 2%, 4%, 10%, 30% Ce<sup>3+</sup> and pure CeCl<sub>3</sub>
    Full-text · Article · Jul 2001 · IEEE Transactions on Nuclear Science