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TlSr2I5:Eu2+- A new high density scintillator for gamma-ray detection.
- Source :
-
Nuclear Instruments & Methods in Physics Research Section A . Feb2021, Vol. 988, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- In this paper we report on the scintillation properties of TlSr 2 I 5 doped with Eu2+, a novel thallium-containing high-resolution scintillator for gamma-ray spectroscopy. Small diameter, good quality crystals of TlSr 2 I 5 :Eu (TSI) with different Eu2+ concentrations were grown by the vertical Bridgman method. X-ray diffraction measurements show that single crystals of TSI belong to the monoclinic system with space group P2 1 /c. TlSr 2 I 5 has a density of 5.32 g/cm3 and effective Z of 60. The X-ray excited emission of Eu2+ doped TlSr 2 I 5 features a broad emission band peaking between 460–470 nm. The light yield of TlSr 2 I 5 crystal doped with 1% Eu2+ is measured to be ∼ 72,000 ph/MeV with an energy resolution of 2.8% at 662 keV. The scintillation decay time which is characteristic of Eu2+ shows two components, with ∼ 90% of the light in a ∼ 500 ns component and the rest in a longer component of ∼ 3 μ s. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SCINTILLATORS
*X-ray diffraction measurement
*SINGLE crystals
Subjects
Details
- Language :
- English
- ISSN :
- 01689002
- Volume :
- 988
- Database :
- Academic Search Index
- Journal :
- Nuclear Instruments & Methods in Physics Research Section A
- Publication Type :
- Academic Journal
- Accession number :
- 147775063
- Full Text :
- https://doi.org/10.1016/j.nima.2020.164876