Fine-grained Ce,Y:SrHfO.sub.3./sub. scintillation ceramics fabricated by hot isostatic pressing

0561144 - FZÚ 2023 RIV CN eng J - Journal Article
Zhu, D.Y. - Qian, K. - Chen, X.P. - Hu, Z.W. - Liu, X. - Li, X.-Y. - Pan, Y.B. - Mihóková, Eva - Nikl, Martin - Li, J.
Fine-grained Ce,Y:SrHfO₃ scintillation ceramics fabricated by hot isostatic pressing.
Journal of Inorganic Materials. Roč. 36, č. 10 (2021), s. 1118-1124. ISSN 1000-324X
R&D Projects: GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : Ce,Y:SrHfO₃ ceramics * hot isostatic pressing * microstructure * grain refinement * scintillation properties
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 1.292, year: 2021
Method of publishing: Open access

In this work, Ce,Y:SrHfO3 ceramics were prepared by long-time vacuum sintering and short-time vacuum pre-sintering combined with hot isostatic pressing (HIP). The evolution of the microstructure in the process of densification was analyzed in detail, and the influence of the pre-sintering temperature on the density, microstructure and optical transparency of Ce,Y:SrHfO3 ceramics was studied. Under X-ray excitation, the Ce3+ 5d-4f emission of Ce,Y:SrHfO3 ceramics was observed at 400 nm, and the XEL integral intensity is 3.3 times higher than that of Bi4Ge3O12 (BGO) crystals. The light yield of the Ce,Y:SrHfO3 ceramics is approximately 3700 ph/MeV with the shaping time of 1 μs. Good optical quality and scintillation performance of Ce,Y:SrHfO3 ceramics may expand the application range and potential in the field of scintillation detection.
Permanent Link: https://hdl.handle.net/11104/0333828