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Scintillation properties of Eu:BaFBr crystal.
- Source :
-
Physica B . Dec2018, Vol. 550, p21-25. 5p. - Publication Year :
- 2018
-
Abstract
- Abstract Eu:BaFBr is typically used in a ceramic form for imaging plate, and it has not been commonly studied in a single crystal form and for scintillator applications. In this study, we prepared Eu:BaFBr single crystal by the Bridgeman method and then evaluated the scintillation properties. The crystal showed an intense scintillation emission spectrum under X-ray excitation with a peak appeared at 395 nm due to the 5d-4f transitions of divalent Eu ion, and the scintillation decay time under X-ray irradiation was 1.4 μs. When we irradiated with γ-rays by 137Cs, a clear photoabsorption peak was observed in the pulse height spectrum, and the scintillation light yield was estimated to be 27000 ph/MeV. By using various radio isotopes, we investigated the relation between peak channels of photoabsorption peak and γ-ray energy, and we confirmed a linear relationship from 60 keV to 1.27 MeV. To the best of our knowledge, this is the first report of Eu:BaFBr crystal demonstrating as a scintillator for γ-ray detections. Highlights • Scintillation properties of Eu-doped BaFBr crystal is investigated. • Emission due to Eu2+ 5d-4f transition is confirmed. • Gamma-ray responses of Eu-doped BaFBr is examined. • Eu-doped BaFBr shows a high scintillation light yield of 27000 ph/MeV. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09214526
- Volume :
- 550
- Database :
- Academic Search Index
- Journal :
- Physica B
- Publication Type :
- Academic Journal
- Accession number :
- 133423540
- Full Text :
- https://doi.org/10.1016/j.physb.2018.08.033