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Bridgman Growth of SrI2

Published online by Cambridge University Press:  11 August 2011

Leonard Alaribe ,
Christian Disch ,
Alex Fauler ,
Ralf Engels ,
Egbert Keller ,
Angelica Cecilia ,
Tomy dos Santos Rolo  and
Michael Fiederle
Leonard Alaribe
Affiliation:
FMF-Freiburger Materialforschungszentrum, Stefan-Meier-Straße 21, D-79104 Freiburg
Christian Disch
Affiliation:
FMF-Freiburger Materialforschungszentrum, Stefan-Meier-Straße 21, D-79104 Freiburg
Alex Fauler
Affiliation:
FMF-Freiburger Materialforschungszentrum, Stefan-Meier-Straße 21, D-79104 Freiburg
Ralf Engels
Affiliation:
Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich
Egbert Keller
Affiliation:
Kristallographisches Institut, Hermann-Herder-Str. 5, D-79104 Freiburg
Angelica Cecilia
Affiliation:
Institut für Synchrotronstrahlung-ANKA, Forschungszentrum Karlsruhe
Tomy dos Santos Rolo
Affiliation:
Institut für Synchrotronstrahlung-ANKA, Forschungszentrum Karlsruhe
Michael Fiederle
Affiliation:
FMF-Freiburger Materialforschungszentrum, Stefan-Meier-Straße 21, D-79104 Freiburg
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Abstract

Eu2+– activated strontium iodide is a promising material for x-ray and gamma ray detector. A lot of difficulties are though encountered growing strontium iodide crystals due to the high oxygen-sensitivity, hygroscopic property and high impurity concentration. Single crystals of SrI2:Eu were grown from zone refined starting materials in silica ampoules. The crystals showed good optical qualities. The light yield of two samples cut from the same ingot was determined to be 53 000 photons/MeV and 119±22 photons/keV for a 0.4 cm3 sample and a 360 μm sample respectively, indicating some level of light trapping in the bulk sample.

Keywords

crystal growthcrystalnuclear materials
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1341: Symposium U – Nuclear Radiation Detection Materials , 2011 , mrss11-1341-u07-16
Copyright
Copyright © Materials Research Society 2011

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References

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