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Title: Prospects for High Energy Resolution Gamma Ray Spectroscopy with Europium-Doped Strontium Iodide

Abstract

Europium-doped strontium iodide scintillators offer a light yield exceeding 100,000 photons/MeV and excellent light yield proportionality, while at the same time, SrI{sub 2} is readily grown in single crystal form. Thus far, our collaboration has demonstrated an energy resolution with strontium iodide of 2.6% at 662 keV and 7.6% at 60 keV, and we have grown single crystals surpassing 30 cm{sup 3} in size (with lower resolution). Our analysis indicates that SrI{sub 2}(Eu) has the potential to offer 2% energy resolution at 662 keV with optimized material, optics, and read-out. In particular, improvements in feedstock purity may result in crystal structural and chemical homogeneity, leading to improved light yield uniformity throughout the crystal volume, and consequently, better energy resolution. Uniform, efficient light collection and detection, is also required to achieve the best energy resolution with a SrI{sub 2}(Eu) scintillator device.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1009210
Report Number(s):
LLNL-JRNL-411870
TRN: US1101410
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Journal Article
Journal Name:
Proceedings of the Materials Research Society, vol. 1164, L11, March 1, 2009, pp. 04
Additional Journal Information:
Journal Volume: 1164; Journal Issue: L11
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUMM MECHANICS, GENERAL PHYSICS; DETECTION; ENERGY RESOLUTION; MONOCRYSTALS; OPTICS; PHOSPHORS; RESOLUTION; SPECTROSCOPY; STRONTIUM IODIDES

Citation Formats

Cherepy, N J, Payne, S A, Hawrami, R, Burger, A, Boatner, L, Van Loef, E, and Shah, K. Prospects for High Energy Resolution Gamma Ray Spectroscopy with Europium-Doped Strontium Iodide. United States: N. p., 2009. Web. doi:10.1557/PROC-1164-L11-04.
Cherepy, N J, Payne, S A, Hawrami, R, Burger, A, Boatner, L, Van Loef, E, & Shah, K. Prospects for High Energy Resolution Gamma Ray Spectroscopy with Europium-Doped Strontium Iodide. United States. doi:10.1557/PROC-1164-L11-04.
Cherepy, N J, Payne, S A, Hawrami, R, Burger, A, Boatner, L, Van Loef, E, and Shah, K. Fri . "Prospects for High Energy Resolution Gamma Ray Spectroscopy with Europium-Doped Strontium Iodide". United States. doi:10.1557/PROC-1164-L11-04. https://www.osti.gov/servlets/purl/1009210.
@article{osti_1009210,
title = {Prospects for High Energy Resolution Gamma Ray Spectroscopy with Europium-Doped Strontium Iodide},
author = {Cherepy, N J and Payne, S A and Hawrami, R and Burger, A and Boatner, L and Van Loef, E and Shah, K},
abstractNote = {Europium-doped strontium iodide scintillators offer a light yield exceeding 100,000 photons/MeV and excellent light yield proportionality, while at the same time, SrI{sub 2} is readily grown in single crystal form. Thus far, our collaboration has demonstrated an energy resolution with strontium iodide of 2.6% at 662 keV and 7.6% at 60 keV, and we have grown single crystals surpassing 30 cm{sup 3} in size (with lower resolution). Our analysis indicates that SrI{sub 2}(Eu) has the potential to offer 2% energy resolution at 662 keV with optimized material, optics, and read-out. In particular, improvements in feedstock purity may result in crystal structural and chemical homogeneity, leading to improved light yield uniformity throughout the crystal volume, and consequently, better energy resolution. Uniform, efficient light collection and detection, is also required to achieve the best energy resolution with a SrI{sub 2}(Eu) scintillator device.},
doi = {10.1557/PROC-1164-L11-04},
journal = {Proceedings of the Materials Research Society, vol. 1164, L11, March 1, 2009, pp. 04},
number = L11,
volume = 1164,
place = {United States},
year = {2009},
month = {4}
}