Scintillation properties of Eu²⁺-doped SrCl₂ and CsSrCl₃ single crystals

• Published in: Functional Materials
• Date: 2012
• Main Authors: Cherginets, V.L., Grippa, A.Yu., Rebrova, T.P., Datsko, Yu.N., Ponomarenko, T.V., Rebrova, N.V., Kosinov, N.N., Tarasenko, O.A., Dolzhenko, Yu.I., Zelenskaya, O.V.
• Format: Article
• Language: English
• Published: НТК «Інститут монокристалів» НАН України 2012
• Subjects: Characterization and properties
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/135294
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Scintillation properties of Eu²⁺-doped SrCl₂ and CsSrCl₃ single crystals/ V.L. Cherginets, A.Yu. Grippa, T.P. Rebrova, Yu.N. Datsko, T.V. Ponomarenko, N.V. Rebrova, N.N. Kosinov, O.A. Tarasenko, Yu.I. Dolzhenko, O.V. Zelenskaya // Functional Materials. — 2012. — Т. 19, № 2. — С. 187-191. — Бібліогр.: 7 назв. — англ.

Eu²⁺-doped CsSrCl₃ scintillation crystals with activator concentration 0.5, 1 and 5 mol. % and SrCl₂: Eu²⁺ material doped with 1 mol. % of the activator have been grown by Bridg-man-Stockbarger method. The radioluminescence spectra of CsSrCl₃: Eu²⁺ materials include a narrow band with the maximum which position is shifted from 437 to 448 nm with Eu²⁺ concentration increase and the spectrum for SrCl₂:Eu²⁺ contains a band with the maximum at 414 nm. The light yield of CsSrCl₃:Eu²⁺ material achieves maximal value at 5 mol. % of Eu²⁺ and it is equal to 39 % in respect to Nal:TI (ca 16,000 photons per MeV) and energetic resolution R is 11.5 %, whereas for SrCl₂:l mol. % of Eu²⁺ the light yield consists 30 % (ca 12,000 photons per MeV) and R = 9.2 %. The scintillation pulse decay curves for CsSrCl₃:Eu²⁺ is described by two components with the decay constants 420 ns and 2.8 ps and the fraction of the faster component is 0.3.