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

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

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

Author(s) -

J. Selling,

Muhammad Danang Birowosuto,

P. Dorenbos,

Stefan Schweizer

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 - 10.1063/1.2432306

Subject(s) - europium , scintillator , halide , iodide , scintillation , barium , bromide , barium chloride , excited state , doping , x ray , chloride , luminescence , chemistry , materials science , inorganic chemistry , radiochemistry , optics , physics , atomic physics , optoelectronics , detector , organic chemistry

Single crystals of undoped or europium-doped barium chloride, bromide, and iodide were investigated under x-ray and ?-ray excitations. The Eu2+-related x-ray excited luminescence found in the Eu-doped barium halides occurs at 402, 404, and 425?nm for the chloride, bromide, and iodide, respectively. BaCl2:Eu2+ shows the best scintillation properties of the systems investigated. The light yield is about 20?000±2000?photons?per?MeV of absorbed ?-ray energy, the energy resolution for the 662?keV photopeak is 8.8%±0.9%, and the scintillation decay time is 390±40?ns

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