Optimization of dopants and scintillation fibers' diameter of GdAlO3/α -Al2O3 Eutectic for high-resolution x-ray imaging

Kei Kamada, Nobuhiro Yasui, Yoshihiro Ohashi, Toru Den, Hiroaki Yamaguchi, Akihiro Yamaji, Yasuhiro Shoji, Masao Yoshisno, Kyoung Jinkim, Shunsuke Kurosawa, Yuji Ohashi, Yuui Yokota, Akira Yoshikawa

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Submicrometer diameter phase-separated scintillator fibers (PSSFs) were reported and they possessed both the properties of an optical fiber and radiation-to-light conversion. The PSSFs were fabricated using a directionally solidified eutectic system. High-resolution X-ray imaging can be developed using the PSSFs. In this paper, Tb- and Eu-doped GdAlO3 (GAP)/ α-Al2O3 eutectic scintillator was grown by the micro pulling down method with various growth rates in order to achieve the high light output and the high light-guiding efficiency. Relationship between radioluminescence intensity and dopant concentration of Eu and Tb was investigated. At the optimized dopant concentration, relationship between growth rate, eutectic period structure, diameter of PSSFs, and contrast transfer function was investigated to achieve high-resolution X-ray imaging.

本文言語English
論文番号8367866
ページ(範囲)2036-2040
ページ数5
ジャーナルIEEE Transactions on Nuclear Science
65
8
DOI
出版ステータスPublished - 2018 8

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 原子力エネルギーおよび原子力工学
  • 電子工学および電気工学

フィンガープリント

「Optimization of dopants and scintillation fibers' diameter of GdAlO<sub>3</sub>/α -Al<sub>2</sub>O<sub>3</sub> Eutectic for high-resolution x-ray imaging」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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