TlSr2I5:Eu2+- A new high density scintillator for gamma-ray detection
Abstract
In this paper we report on the scintillation properties of TlSr2I5 doped with Eu2+, a novel thallium-containing high-resolution scintillator for gamma-ray spectroscopy. Here, small diameter, good quality crystals of TlSr2I5: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 P21/c. TlSr2I5 has a density of 5.32 g/cm3 and effective Z of 60. The X-ray excited emission of Eu2+ doped TlSr2I5 features a broad emission band peaking between 460–470 nm. The light yield of TlSr2I5 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 μs.
- Authors:
-
[1];
[3];
[1];
[2];
- Radiation Monitoring Devices, Inc., Watertown, MA (United States)
- Univ. of Tennessee, Knoxville, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); Defense Threat Reduction Agency (DTRA)
- OSTI Identifier:
- 1735452
- Alternate Identifier(s):
- OSTI ID: 1776943
- Grant/Contract Number:
- AC05-00OR22725; NA-0003180; HDTRA1-16-1-0007
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Additional Journal Information:
- Journal Volume: 988; Journal Issue: N/A; Journal ID: ISSN 0168-9002
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; TlSr2I5; Inorganic scintillators; Thallium-based scintillators; Gamma-ray spectroscopy; DFT calculations; X-ray diffraction.
Citation Formats
Soundara Pandian, Lakshmi, Loyd, Matthew, Du, Mao-Hua, van Loef, Edgar, Ciampi, Guido, Stand, Luis, Zhuravleva, Mariya, Koschan, Merry, Glodo, Jarek, Melcher, Charles, and Shah, Kanai. TlSr2I5:Eu2+- A new high density scintillator for gamma-ray detection. United States: N. p., 2020.
Web. doi:10.1016/j.nima.2020.164876.
Soundara Pandian, Lakshmi, Loyd, Matthew, Du, Mao-Hua, van Loef, Edgar, Ciampi, Guido, Stand, Luis, Zhuravleva, Mariya, Koschan, Merry, Glodo, Jarek, Melcher, Charles, & Shah, Kanai. TlSr2I5:Eu2+- A new high density scintillator for gamma-ray detection. United States. https://doi.org/10.1016/j.nima.2020.164876
Soundara Pandian, Lakshmi, Loyd, Matthew, Du, Mao-Hua, van Loef, Edgar, Ciampi, Guido, Stand, Luis, Zhuravleva, Mariya, Koschan, Merry, Glodo, Jarek, Melcher, Charles, and Shah, Kanai. Tue .
"TlSr2I5:Eu2+- A new high density scintillator for gamma-ray detection". United States. https://doi.org/10.1016/j.nima.2020.164876. https://www.osti.gov/servlets/purl/1735452.
@article{osti_1735452,
title = {TlSr2I5:Eu2+- A new high density scintillator for gamma-ray detection},
author = {Soundara Pandian, Lakshmi and Loyd, Matthew and Du, Mao-Hua and van Loef, Edgar and Ciampi, Guido and Stand, Luis and Zhuravleva, Mariya and Koschan, Merry and Glodo, Jarek and Melcher, Charles and Shah, Kanai},
abstractNote = {In this paper we report on the scintillation properties of TlSr2I5 doped with Eu2+, a novel thallium-containing high-resolution scintillator for gamma-ray spectroscopy. Here, small diameter, good quality crystals of TlSr2I5: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 P21/c. TlSr2I5 has a density of 5.32 g/cm3 and effective Z of 60. The X-ray excited emission of Eu2+ doped TlSr2I5 features a broad emission band peaking between 460–470 nm. The light yield of TlSr2I5 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 μs.},
doi = {10.1016/j.nima.2020.164876},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = N/A,
volume = 988,
place = {United States},
year = {Tue Nov 24 00:00:00 EST 2020},
month = {Tue Nov 24 00:00:00 EST 2020}
}
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