The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 2012
Filed:
Aug. 21, 2007
Merry A. Koschan, Maryville, TN (US);
Charles L. Melcher, Oak Ridge, TN (US);
Piotr Szupryczynski, Knoxville, TN (US);
A. Andrew Carey, Lenoir City, TN (US);
Merry A. Koschan, Maryville, TN (US);
Charles L. Melcher, Oak Ridge, TN (US);
Piotr Szupryczynski, Knoxville, TN (US);
A. Andrew Carey, Lenoir City, TN (US);
Siemens Medical Solutions USA, Inc., Malvern, PA (US);
University of Tennessee Research Foundation, Knoxville, TN (US);
Abstract
LSO scintillation crystals with improved scintillation and optical properties are achieved by controlled co-doping a LSO crystal melt with amounts of cerium and an additional codopant such as calcium or other divalent cations. Crystal growth atmosphere is optimized by controlling the amount of oxygen in the atmosphere. Zinc is added as an additional material to restabilize crystal growth where calcium co-dopant is added. The decay time of the scintillation crystal can be controlled by controlling the concentration of co-dopant added.