SYNTHESIS AND CHARACTERIZATION OF SrF2 AND SrF2:Ce3+ NANOPARTICLES FOR GAMMA RAY DETECTION
Öz
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.
Anahtar Kelimeler
Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
Metroloji,Uygulamalı ve Endüstriyel Fizik
Bölüm
Araştırma Makalesi
Yazarlar
Selen Nimet Gürbüz Güner
Türkiye
Erhan Aksu
*
Türkiye
Haydar Dişbudak
Bu kişi benim
Türkiye
Mahmut Eken
Bu kişi benim
Türkiye
Ece Ergun
Türkiye
Yücel Özer Özkök
Bu kişi benim
Türkiye
Ömer Gündüz
Türkiye
Yayımlanma Tarihi
25 Aralık 2018
Gönderilme Tarihi
29 Mayıs 2018
Kabul Tarihi
20 Aralık 2018
Yayımlandığı Sayı
Yıl 2018 Cilt: 30 Sayı: 2