Strontium and barium iodide high light yield scintillators

被引：311

作者：

Cherepy, Nerine J. ^{[1
]}

Hull, Giulia ^{[1
]}

Drobshoff, Alexander D. ^{[1
]}

Payne, Stephen A. ^{[1
]}

Van Loef, Edgar ^{[2
]}

Wilson, Cody M. ^{[2
]}

Shah, Kanai S. ^{[2
]}

Roy, Utpal N. ^{[3
]}

Burger, Arnold ^{[3
]}

Boatner, Lynn A. ^{[4
]}

Choong, Woon-Seng ^{[5
]}

Moses, William W. ^{[5
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] Radiat Monitoring Devices Inc, Boston, MA 02134 USA

[3] Fisk Univ, Ctr Phys & Chem Mat, Nashville, TN 37208 USA

[4] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[5] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 08期

关键词：

This work was supported by the Domestic Nuclear Detection Office in the Department of Homeland Security and by the NNSA; Office of Nonproliferation Research and Development (NA-22) of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098; and was performed under the auspices of the U.S. DOE by Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344. Oak Ridge National Laboratory is managed for the U.S; DOE by UT-Battelle under Contract No. DE-AC05-00OR22725;

D O I：

10.1063/1.2885728

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Europium-doped strontium and barium iodide are found to be readily growable by the Bridgman method and to produce high scintillation light yields. SrI2(Eu) emits into the Eu(2+) band, centered at 435 nm, with a decay time of 1.2 mu s and a light yield of similar to 90 00 photons/MeV. It offers energy resolution better than 4% full width at half maximum at 662 keV, and exhibits excellent light yield proportionality. BaI(2)(Eu) produces >30 000 photons/MeV into the Eu(2+) band at 420 nm (<1 mu s decay). An additional broad impurity-mediated recombination band is present at 550 nm (>3 mu s decay), unless high-purity feedstock is used. (c) 2008 American Institute of Physics.

引用

页数：3

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