SYNTHESIS AND CHARACTERIZATION OF SrF2 AND SrF2:Ce3+ NANOPARTICLES FOR GAMMA RAY DETECTION
Abstract
SrF2 and SrF2:xCe3+ (x=0.5%-10%)
nanoparticles were synthesized using chemical co-precipitation method.
Structural and optical properties of the undoped and cerium doped nanoparticles
were characterized with X-Ray Diffraction (XRD), High-Resolution Transmission
Electron Microscopy (HRTEM), and Photoluminescence (PL)
measurements. Average sizes of the synthesized nanoparticles were determined from the
broadening of X-Ray Diffraction peaks using Debye-Scherer equation. Estimated values were ranging
between 30 nm-52 nm. All synthesized nanoparticles show photoluminescence
characteristics with an excitation and
emission peaks centered at 232 nm and 464 nm, respectively. Disc shaped bulk nanocomposite scintillators were
also fabricated using synthesized SrF2 and SrF2:1% Ce3+
nanoparticles as phosphor fillers and epoxy resin as matrix material.
Energy spectrums of bulk nanocomposite scintillators were collected using
Am-241, Cs-137, and Co-60 point sources. Gamma ray energy responses of the
fabricated scintillator materials revealed the fact that these nanocomposites
have a potential for the detection of gamma rays and energy discrimination of
the radioactive sources.
Keywords
References
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Details
Primary Language
English
Subjects
Metrology, Applied and Industrial Physics
Journal Section
Research Article
Authors
Selen Nimet Gürbüz Güner
Türkiye
Erhan Aksu
*
Türkiye
Haydar Dişbudak
This is me
Türkiye
Mahmut Eken
This is me
Türkiye
Ece Ergun
Türkiye
Yücel Özer Özkök
This is me
Türkiye
Ömer Gündüz
Türkiye
Publication Date
December 25, 2018
Submission Date
May 29, 2018
Acceptance Date
December 20, 2018
Published in Issue
Year 2018 Volume: 30 Number: 2