Ceramic scintillator body and scintillation device

US8872119B2 · kind B2 · utility

Assignee

• SAINT-GOBAIN CERAMICS & PLASTICS, INC. · US

Inventors

• Anne B. Hardy · Acton, US
• Qiwei Chen · Shanghai, CN
• Xiaofeng Peng · 兜山镇, CN
• Nathalie Petigny · Velleron, FR
• Bruno Viana · Montgeron, FR
• Andree Kahn-Harari · Paris, FR

Key dates

• Filing date: Dec 24, 2009
• Grant date: Oct 28, 2014
• Expiry date: Oct 3, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G21K2004/06
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A scintillation device includes a free-standing ceramic scintillator body that includes a polycrystalline ceramic scintillating material comprising a rare earth element, wherein the polycrystalline ceramic scintillating material is characterized substantially by a cation-deficient perovskite structure. A method of producing a free-standing ceramic scintillator body includes preparing a precursor solution including a rare earth element precursor, a hafnium precursor and an activator (Ac) precursor, obtaining a precipitate from the solution, and calcining the precipitate to obtain a polycrystalline ceramic scintillating material including a rare earth hafnate doped with the activator and having a cation-deficient perovskite structure.