TlSr2I5:Eu2+- A new high density scintillator for gamma-ray detection

Lakshmi Soundara Pandian; Matthew Loyd; Mao Hua Du; Edgar van Loef; Guido Ciampi; Luis Stand; Mariya Zhuravleva; Merry Koschan; Jarek Glodo; Charles Melcher; Kanai Shah

doi:10.1016/j.nima.2020.164876

TlSr₂I₅:Eu²⁺- A new high density scintillator for gamma-ray detection

Lakshmi Soundara Pandian, Matthew Loyd, Mao Hua Du, Edgar van Loef, Guido Ciampi, Luis Stand, Mariya Zhuravleva, Merry Koschan, Jarek Glodo, Charles Melcher, Kanai Shah

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

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. 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.

Original language	English
Article number	164876
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	988
DOIs	https://doi.org/10.1016/j.nima.2020.164876
State	Published - Feb 1 2021
Externally published	Yes

Funding

This manuscript has been co-authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).This work has been supported by the US Defense Threat Reduction Agency, under competitively awarded contract HDTRA1-16-1-0007. This support does not constitute an express or implied endorsement on the part of the Government. XRD was performed at the Joint Institute for Advanced Materials (JIAM) Diffraction Facility, located at the University of Tennessee, Knoxville. This material is based on work supported in part by the Department of Energy National Nuclear Security Administration through the Nuclear Science and Security Consortium under Award Number DE-NA-0003180. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

Funders	Funder number
DOE Public Access Plan
United States Government
U.S. Department of Energy
Defense Threat Reduction Agency	HDTRA1-16-1-0007
National Nuclear Security Administration	DE-NA-0003180
University of Tennessee
UT-Battelle	DE-AC05-00OR22725

Keywords

DFT calculations
Gamma-ray spectroscopy
Inorganic scintillators
Thallium-based scintillators
TlSrI
X-ray diffraction

Access to Document

10.1016/j.nima.2020.164876

Cite this

Soundara Pandian, L., Loyd, M., Du, M. H., van Loef, E., Ciampi, G., Stand, L., Zhuravleva, M., Koschan, M., Glodo, J., Melcher, C., & Shah, K. (2021). TlSr₂I₅:Eu²⁺- A new high density scintillator for gamma-ray detection. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 988, Article 164876. https://doi.org/10.1016/j.nima.2020.164876

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title = "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. 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.",

keywords = "DFT calculations, Gamma-ray spectroscopy, Inorganic scintillators, Thallium-based scintillators, TlSrI, X-ray diffraction",

author = "{Soundara Pandian}, Lakshmi and Matthew Loyd and Du, {Mao Hua} and {van Loef}, Edgar and Guido Ciampi and Luis Stand and Mariya Zhuravleva and Merry Koschan and Jarek Glodo and Charles Melcher and Kanai Shah",

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Soundara Pandian, L, Loyd, M, Du, MH, van Loef, E, Ciampi, G, Stand, L, Zhuravleva, M, Koschan, M, Glodo, J, Melcher, C & Shah, K 2021, 'TlSr₂I₅:Eu²⁺- A new high density scintillator for gamma-ray detection', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 988, 164876. https://doi.org/10.1016/j.nima.2020.164876

TY - JOUR

T1 - TlSr2I5:Eu2+- A new high density scintillator for gamma-ray detection

AU - Soundara Pandian, Lakshmi

AU - Loyd, Matthew

AU - Du, Mao Hua

AU - van Loef, Edgar

AU - Ciampi, Guido

AU - Stand, Luis

AU - Zhuravleva, Mariya

AU - Koschan, Merry

AU - Glodo, Jarek

AU - Melcher, Charles

AU - Shah, Kanai

PY - 2021/2/1

Y1 - 2021/2/1

N2 - 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. 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.

AB - 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. 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.

KW - DFT calculations

KW - Gamma-ray spectroscopy

KW - Inorganic scintillators

KW - Thallium-based scintillators

KW - TlSrI

KW - X-ray diffraction

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