A novel crystal scintillator of RbBa2I5:Eu2+ was grown by the Bridgman–Stockbarger method. Its luminescence and scintillation properties were investigated. Under X-ray excitation, the crystal demonstrates blue luminescence peaking at 436 nm associated with 4f65d1→ 4f7 radiative transitions of Eu2+ ions. The main X-ray luminescence decay constant is 800 ns. The light output of RbBa2I5:3%Eu2+ sample under 662 keV excitation is 58,200 ph/MeV.
Rebrova, N., Grippa, A., Cala, R., Martinazzoli, L., Auffray, E., Boiaryntseva, I. (2020). Growth and luminescent properties of new Eu2+ doped RbBa2I5 scintillator. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 978 [10.1016/j.nima.2020.164463].
Growth and luminescent properties of new Eu2+ doped RbBa2I5 scintillator
Cala R.;Martinazzoli L.;
2020
Abstract
A novel crystal scintillator of RbBa2I5:Eu2+ was grown by the Bridgman–Stockbarger method. Its luminescence and scintillation properties were investigated. Under X-ray excitation, the crystal demonstrates blue luminescence peaking at 436 nm associated with 4f65d1→ 4f7 radiative transitions of Eu2+ ions. The main X-ray luminescence decay constant is 800 ns. The light output of RbBa2I5:3%Eu2+ sample under 662 keV excitation is 58,200 ph/MeV.
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