High energy resolution scintillators having high light output

US8299436B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Alok Mani Srivastava · San Francisco, US
• Steven Jude Duclos · Niskayuna, US
• Lucas Clarke · Bradenton, US
• Holly Ann Comanzo · Niskayuna, US
• Qun Deng · New York, US

Key dates

• Filing date: Jun 29, 2005
• Grant date: Oct 30, 2012
• Expiry date: Jun 8, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/3229
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A scintillator composition includes a matrix material, where the matrix material includes an alkaline earth metal and a lanthanide halide. The scintillator composition further includes an activator ion, where the activator ion is a trivalent ion. In one embodiment, the scintillator composition includes a matrix material represented by A2LnX7, where A includes an alkaline earth metal, Ln includes a lanthanide ion, and X includes a halide ion. In another embodiment, the scintillator composition includes a matrix material represented by ALnX5, where A includes an alkaline earth metal, Ln includes a lanthanide ion, and X includes a halide ion. In these embodiments, the scintillator composition includes an activator ion, where the activator ion includes cerium, or bismuth, or praseodymium, or combinations thereof.