Cerium-doped barium halide scintillators for x-ray and γ-ray detections | Zendy

J. Selling | Zendy; Stefan Schweizer | Zendy; Muhammad Danang Birowosuto | Zendy; P. Dorenbos | Zendy

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Cerium-doped barium halide scintillators for x-ray and γ-ray detections

Author(s) -

J. Selling,

Stefan Schweizer,

Muhammad Danang Birowosuto,

P. Dorenbos

Publication year - 2007

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.2786714

Subject(s) - scintillator , cerium , scintillation , doping , excited state , barium , halide , luminescence , x ray , materials science , barium fluoride , excitation , analytical chemistry (journal) , gamma ray , radiochemistry , chemistry , atomic physics , optics , optoelectronics , inorganic chemistry , physics , nuclear physics , detector , metallurgy , quantum mechanics , chromatography

Single crystals of Ce-activated BaCl2, BaBr2, and BaI2 were investigated under x-ray and ?-ray excitation. The Ce3+-related x-ray excited luminescence in BaBr2 shifts significantly to longer wavelengths upon increasing the doping level from 0.1% to 1%. In Ce-activated BaCl2 only a slight shift can be observed. BaI2 does not show any Ce3+-related emission. Scintillation decay time measurements show that the decay in BaBr2 is delayed due to migration processes. Additional K doping has a large influence on the scintillation decay time properties but not on the overall efficiency

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