Studies on the synthesis of terbium-activated gadolinium oxysulphide phosphors

Laura Muresan; Elisabeth-Jeanne Popovici; Amalia Hristea; Emil Indrea; Marilena Vasilescu

doi:10.1117/12.583075

21 October 2004 Studies on the synthesis of terbium-activated gadolinium oxysulphide phosphors

Laura Muresan, Elisabeth-Jeanne Popovici, Amalia Hristea, Emil Indrea, Marilena Vasilescu

Proceedings Volume 5581, ROMOPTO 2003: Seventh Conference on Optics; (2004) https://doi.org/10.1117/12.583075
Event: ROMOPTO 2003: Seventh Conference on Optics, 2003, Constanta, Romania

Abstract

Terbium activated gadolinium oxysulphide phosphor (Gd₂O₂S: Tb) shows bright green luminescence and high efficiency under X-ray excitation. Phosphor utilization depends on powder characteristics and luminescent properties that are regulated during the synthesis stage. The paper prsents some of our results referring to the synthesis of Gd₂O₂S: Tb phosphor by solid state reaction route, from oxide precursors. The influence of flux composition and amount as well as the sulphide supplier concentration on phosphor properties was investigated in order to prepare efficient luminescent powders for the manufacture of X-ray intensifying screens for medical diagnosis.

Citation Download Citation

Laura Muresan, Elisabeth-Jeanne Popovici, Amalia Hristea, Emil Indrea, and Marilena Vasilescu "Studies on the synthesis of terbium-activated gadolinium oxysulphide phosphors", Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); https://doi.org/10.1117/12.583075

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