Dopant concentration dependence of radiation-induced positive hysteresis of Ce:GSO and Ce:GSOZ

Takayuki Yanagida, Yutaka Fujimoto, Kenichi Watanabe

研究成果: Contribution to journalArticle査読

11 被引用数 (Scopus)

抄録

Positive hysteresis and radiation tolerance to high-dose radiation exposure were investigated for Ce 0.5, 1, and 1.5%-doped Gd2SiO5 (GSO) and for Zr co-doped GSO with the same Ce concentrations (GSOZ). When they were irradiated by 200-800 Gy 60Co in 200 Gy steps, all Ce-doped GSO samples exhibited light yield enhancement (positive hysteresis). On the other hand, the light yield of GSOZ decreased greatly. Ce 0.5%-doped GSO showed the highest positive hysteresis, with ∼20% light yield enhancement. When the Ce concentration was increased, the positive hysteresis became weaker.

本文言語英語
ページ(範囲)16-20
ページ数5
ジャーナルRadiation Measurements
61
DOI
出版ステータス出版済み - 2 2014
外部発表はい

All Science Journal Classification (ASJC) codes

  • 放射線
  • 器械工学

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