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

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, SrI2 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 cm3 in size (with lower resolution). Our analysis indicates that SrI2(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 SrI2(Eu) scintillator device.

Authors:
 [1];  [1];  [2];  [2];  [3];  [4];  [4]
  1. Lawrence Livermore National Laboratory (LLNL)
  2. Fisk University, Nashville, TN
  3. ORNL
  4. Radiation Monitoring Devices, Watertown, MA
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
Work for Others (WFO)
OSTI Identifier:
963920
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: 2009 MRS Spring Meeting, Symposium on Nuclear Radiation Detection Materials, San Francisco, CA, USA, 20090413, 20090417
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ENERGY RESOLUTION; MONOCRYSTALS; PHOSPHORS; RADIATION DETECTION; RESOLUTION; STRONTIUM IODIDES; DOPED MATERIALS; EUROPIUM; SCINTILLATION COUNTERS; SrI2(Eu); SrI2(Eu) scintillator; Europium-doped strontium iodide scintillators

Citation Formats

Cherepy, Nerine, Payne, Stephen A., Hawrami, Rastgo, Burger, Arnold, Boatner, Lynn A, Van Loef, Edgar, and Shah, Kanai. Prospects for High Energy Resolution Gamma Ray Spectroscopy with Europium-Doped Strontium. United States: N. p., 2009. Web.
Cherepy, Nerine, Payne, Stephen A., Hawrami, Rastgo, Burger, Arnold, Boatner, Lynn A, Van Loef, Edgar, & Shah, Kanai. Prospects for High Energy Resolution Gamma Ray Spectroscopy with Europium-Doped Strontium. United States.
Cherepy, Nerine, Payne, Stephen A., Hawrami, Rastgo, Burger, Arnold, Boatner, Lynn A, Van Loef, Edgar, and Shah, Kanai. Thu . "Prospects for High Energy Resolution Gamma Ray Spectroscopy with Europium-Doped Strontium". United States.
@article{osti_963920,
title = {Prospects for High Energy Resolution Gamma Ray Spectroscopy with Europium-Doped Strontium},
author = {Cherepy, Nerine and Payne, Stephen A. and Hawrami, Rastgo and Burger, Arnold and Boatner, Lynn A and Van Loef, Edgar and Shah, Kanai},
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, SrI2 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 cm3 in size (with lower resolution). Our analysis indicates that SrI2(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 SrI2(Eu) scintillator device.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {1}
}

Conference:
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