Method for making sintered cubic halide scintillator material

US7879284B2 · kind B2 · utility

Assignee

• Momentive Performance Materials GmbH · US

Inventors

• Sergio Paulo Martins Loureiro · Saratoga Springs, US
• Venkat Subramaniam Venkataramani · Clifton Park, US
• Lucas Clarke · Bradenton, US
• Kevin Paul McEvoy · Ballston Spa, US
• Carl Vess · Niskayuna, US
• Thomas Francis McNulty · Ballston Lake, US
• Steven Jude Duclos · Niskayuna, US
• Adrian Ivan · Niskayuna, US
• Patricia A. Hubbard · Olmsted Falls, US

Key dates

• Filing date: Jan 29, 2007
• Grant date: Feb 1, 2011
• Expiry date: Aug 15, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/9661
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method of making a cubic halide scintillator material includes pressing a powder mixture of cubic halide and at least one activator under conditions of pressure, temperature, residence time and particle size effective to provide a polycrystalline sintered cubic halide scintillator having a pulse height resolution of from about 7% to about 20%. The conditions include a temperature ranging from about ambient temperature up to about 90% of the melting point of the cubic halide, a pressure of from about 30,000 psi to about 200,000 psi, a pressing residence time of from about 5 minutes to about 120 minutes and an average cubic halide particle size of from about 60 micrometers to about 275 micrometers.