Journal of Inorganic Materials

• Research Paper • Previous Articles     Next Articles

Influence of Si4+ Ion on Scintillation Properties and Radiation Hardness of Y3+ Doping PbWO4 Crystals

ZHANG Xin; LIAO Jing-Ying; XIE Jian-Jun; SHEN Bing-Fu; SHAO Pei-Fa; LI Chang-Quan; YUAN Hui; YIN Zhi-Wen   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:2001-09-03 Revised:2001-09-25 Published:2002-09-20 Online:2002-09-20

Abstract: Based on the fact that the exceptional irradiation behaviors are prominent at the top part of Y3+ doping PWO crystals while exposed to low dose rate γa-ray,
previous studies concluded that this phenomenon was caused by enrichment of impurities such as Na+, K+ and Si4+ whose segregation coefficient are smaller
than 1. In this paper, the relationships among annealing, optical transmission and radiation hardness of Si4+ ion contained Y3+: PWO crystals were
investigated. The experimental results show that the Si4+ ions do not influence optical transmission and radiation hardness of Y3+: PWO crystals at the concentration
involved in the study. It can be concluded that the exceptional irradiation behaviors of Y3+: PWO crystals do not relate to the contamination of Si4+ ion.

Key words: lead tungstate, doping, radiation hardness, scintillation

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