论文信息 - Radiation resistance and fluorescence of europium doped BGO crystals

Radiation resistance and fluorescence of europium doped BGO crystals

Abstract We report on a study of the radiation resistance and fluorescence of bismuth germanate scintillation crystals doped with europium (BGO: Eu). The transmission spectrum, the light output and the fluorescence spectrum of BGO: Eu crystals were measured before and after irradiation. The radiation resistance of BGO: Eu crystals was found to be increased with increase of europium doping. A red fluorescence emission around 600 nm was found for BGO: Eu samples, which has a 1.5 ms decay time.

[1] M. Riebesell,et al. Radiation damage of BGO and CsI(Tl) crystals , 1985 .

[2] F. Raynal,et al. Synthesis, characterization and optical properties of bismuth germanate doped with trivalent europium , 1976 .

[3] Z. Yin,et al. A new BGO crystal with higher radiation hardness , 1989 .

[4] A. Engler,et al. Study of radiation damage to long BGO crystals , 1984 .

[5] P. Lecoq,et al. Radiation damage of bismuth germanate crystals , 1984 .

[6] Masaaki Kobayashi,et al. Radiation damage of BGO crystals due to low energy γ rays, high energy protons and fast neutrons , 1983 .