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Title: Crystal growth and scintillation properties of strontium iodide scintillators

Abstract

Single crystals of SrI{sub 2}:Eu and SrI{sub 2}:Ce/Na were grown from anhydrous iodides by the vertical Bridgman technique in evacuated silica ampoules. Growth rates were of the order of 5-30 mm/day. Radioluminescence spectra of SrI{sub 2}:Eu and SrI{sub 2}:Ce/Na exhibit a broad band due to Eu{sup 2+} and Ce{sup 3+} emission, respectively. The maximum in the luminescence spectrum of SrI{sub 2}:Eu is found at 435 nm. The spectrum of SrI{sub 2}:Ce/Na exhibits a doublet peaking at 404 and 435 nm attributed to Ce{sup 3+} emission, while additional impurity - or defected - related emission is present at approximately 525 nm. The strontium iodide scintillators show very high light yields of up to 120,000 photons/MeV, have energy resolutions down to 3% at 662 keV (Full Width Half Maximum) and exhibit excellent light yield proportionality with a standard deviation of less than 5% between 6 and 460 keV.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
Life Sciences Division
OSTI Identifier:
972639
Report Number(s):
LBNL-2457E
Journal ID: ISSN 0018-9499; IETNAE; TRN: US1001669
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Nuclear Science
Additional Journal Information:
Journal Volume: NS-56; Journal ID: ISSN 0018-9499
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CRYSTAL GROWTH; ENERGY RESOLUTION; HALIDES; IODIDES; LUMINESCENCE; MONOCRYSTALS; PHOSPHORS; RADIOLUMINESCENCE; SCINTILLATION COUNTERS; SCINTILLATIONS; SILICA; SPECTRA; STRONTIUM IODIDES

Citation Formats

van Loef, Edgar, Wilson, Cody, Cherepy, Nerine, Payne, Steven, Choong, Woon-Seng, Moses, William W, and Shah, Kanai. Crystal growth and scintillation properties of strontium iodide scintillators. United States: N. p., 2009. Web. doi:10.1109/TNS.2009.2013947.
van Loef, Edgar, Wilson, Cody, Cherepy, Nerine, Payne, Steven, Choong, Woon-Seng, Moses, William W, & Shah, Kanai. Crystal growth and scintillation properties of strontium iodide scintillators. United States. doi:10.1109/TNS.2009.2013947.
van Loef, Edgar, Wilson, Cody, Cherepy, Nerine, Payne, Steven, Choong, Woon-Seng, Moses, William W, and Shah, Kanai. Mon . "Crystal growth and scintillation properties of strontium iodide scintillators". United States. doi:10.1109/TNS.2009.2013947. https://www.osti.gov/servlets/purl/972639.
@article{osti_972639,
title = {Crystal growth and scintillation properties of strontium iodide scintillators},
author = {van Loef, Edgar and Wilson, Cody and Cherepy, Nerine and Payne, Steven and Choong, Woon-Seng and Moses, William W and Shah, Kanai},
abstractNote = {Single crystals of SrI{sub 2}:Eu and SrI{sub 2}:Ce/Na were grown from anhydrous iodides by the vertical Bridgman technique in evacuated silica ampoules. Growth rates were of the order of 5-30 mm/day. Radioluminescence spectra of SrI{sub 2}:Eu and SrI{sub 2}:Ce/Na exhibit a broad band due to Eu{sup 2+} and Ce{sup 3+} emission, respectively. The maximum in the luminescence spectrum of SrI{sub 2}:Eu is found at 435 nm. The spectrum of SrI{sub 2}:Ce/Na exhibits a doublet peaking at 404 and 435 nm attributed to Ce{sup 3+} emission, while additional impurity - or defected - related emission is present at approximately 525 nm. The strontium iodide scintillators show very high light yields of up to 120,000 photons/MeV, have energy resolutions down to 3% at 662 keV (Full Width Half Maximum) and exhibit excellent light yield proportionality with a standard deviation of less than 5% between 6 and 460 keV.},
doi = {10.1109/TNS.2009.2013947},
journal = {IEEE Transactions on Nuclear Science},
issn = {0018-9499},
number = ,
volume = NS-56,
place = {United States},
year = {2009},
month = {6}
}