A series of Cs0.2Rb0.8Ca1–xEuxBr3 (0≤x≤0.08) crystals doped with different concentrations of Eu2+ was grown using the Bridgman-Stockbarger method. The work describes the influence of Eu2+ concentration on the luminescent and kinetic properties of Cs0.2Rb0.8Ca1–xEuxBr3 crystals, as well as on their scintillation performance. The maximum in the radioluminescence spectra of these crystals shifts from 439 to 446 nm with increasing europium concentration. The scintillation decay times of Cs0.2Rb0.8Ca1–xEuxBr3 lengthen with the Eu2+ content. The best light output of 33,600 photons/MeV was obtained for Cs0.2Rb0.8Ca0.93Eu0.07Br3, and the best energy resolution of 6.9 % was found for Cs0.2Rb0.8Ca0.94Eu0.06Br3.
Rebrova, N., Grippa, A., Boiaryntseva, I., Berastegui, P., Gorbacheva, T., Datsko, Y., et al. (2022). Effects of europium concentration on luminescent and scintillation performance of Cs0.2Rb0.8Ca1−xEuxBr3 (0 ≤ x ≤ 0.08) crystals. JOURNAL OF RARE EARTHS, 40(1 (January 2022)), 29-33 [10.1016/j.jre.2020.08.012].
Effects of europium concentration on luminescent and scintillation performance of Cs0.2Rb0.8Ca1−xEuxBr3 (0 ≤ x ≤ 0.08) crystals
Calà, R.;Martinazzoli, L.;
2022
Abstract
A series of Cs0.2Rb0.8Ca1–xEuxBr3 (0≤x≤0.08) crystals doped with different concentrations of Eu2+ was grown using the Bridgman-Stockbarger method. The work describes the influence of Eu2+ concentration on the luminescent and kinetic properties of Cs0.2Rb0.8Ca1–xEuxBr3 crystals, as well as on their scintillation performance. The maximum in the radioluminescence spectra of these crystals shifts from 439 to 446 nm with increasing europium concentration. The scintillation decay times of Cs0.2Rb0.8Ca1–xEuxBr3 lengthen with the Eu2+ content. The best light output of 33,600 photons/MeV was obtained for Cs0.2Rb0.8Ca0.93Eu0.07Br3, and the best energy resolution of 6.9 % was found for Cs0.2Rb0.8Ca0.94Eu0.06Br3.
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