Photoluminescence and scintillation properties of Rb2CeCl5 crystal

Yutaka Fujimoto, Keiichiro Saeki, Daisuke Nakauchi, Takayuki Yanagida, Masanori Koshimizu, Keisuke Asai

研究成果: Article査読

4 被引用数 (Scopus)

抄録

A new Rb2CeCl5-based crystalline scintillator was grown by the vertical Bridgman–Stockbarger method for application in X-ray and gamma-ray detection. In the X-ray diffraction (XRD) analysis, most peaks of the grown crystal were in good agreement with the database of Rb2CeCl5, whereas a few peaks of Rb3CeCl6 were also identified. The photoluminescence and scintillation properties of a Rb2CeCl5 crystal were studied under excitation by UV light, X-rays, and γ-rays. The photoluminescence and scintillation spectra showed an emission band peak at 370 nm, with a shoulder at around 350 nm, which was assigned to the 5d1–4f (2F5/2 2F7/2) allowed transitions of Ce3+. The calculated scintillation decay time constants were approximately 24 and 153 ns. The scintillation light yield reached 36000 photons/MeV with an energy resolution of 15% at 662 keV.

本文言語English
ページ(範囲)1241-1248
ページ数8
ジャーナルSensors and Materials
31
4
DOI
出版ステータスPublished - 2019

ASJC Scopus subject areas

  • 器械工学
  • 材料科学(全般)

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