Scintillation material of rare earth orthosilicate doped with strong electron-affinitive element and its preparation method and application thereof

US11567223B2 · kind B2 · utility

Assignee

• SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCES · CN

Inventors

• Dongzhou Ding · Shanghai, CN
• Shuwen Zhao · Shanghai, CN
• Fan Yang · Fujian, CN
• Junjie SHI · Beijing, CN
• Chen Yuan · Shanghai, CN
• Linwei WANG · Shanghai, CN
• Zhongjun Xue · Shanghai, CN

Key dates

• Filing date: Nov 12, 2021
• Grant date: Jan 31, 2023
• Expiry date: Nov 12, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/9653
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a scintillation material of rare earth orthosilicate doped with a strong electron-affinitive element and its preparation method and application thereof. The chemical formula of the scintillation material of rare earth orthosilicate doped with the strong electron-affinitive element is: RE2(1−x−y+δ/2)Ce2xM(2y−δ)Si(1−δ)MδO5. In the formula, RE is rare earth ions and M is strong electron-affinitive doping elements; the value of x is 0<x≤0.05, the value of y is 0<y≤0.015, and the value of δ is 0≤δ≤10−4; and M is selected from at least one of tungsten, lead, molybdenum, tellurium, antimony, bismuth, mercury, silver, nickel, indium, thallium, niobium, titanium, tantalum, tin, cadmium, technetium, zirconium, rhenium, and gallium Ga.