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:
Aug. 21, 2012
Filed:
Mar. 25, 2006
Stephan Appelt, Jülich, DE;
Wolfgang Häsing, Jülich, DE;
Ulrich Sieling, Düren, DE;
Holger Kühn, Leverkusen, DE;
Stephan Appelt, Jülich, DE;
Wolfgang Häsing, Jülich, DE;
Ulrich Sieling, Düren, DE;
Holger Kühn, Leverkusen, DE;
Forschungszentrum Juelich GmbH, Juelich, DE;
Abstract
The invention concerns a method for hyperpolarizing lithium atoms in a mixture by optically pumping, in a sampling cell, atoms of a first type or alkali metal and by spin exchange between the optically pumped electron of the alkali metal and the lithium atom electron. The lithium atoms are preferably oxidized into Liions and accumulated. The nuclear spin polarization of the Liions can be transmitted to a nuclear spin of an anion. The invention also concerns a method for producing substances with nuclear spin polarization in general. In accordance with said method, lithium atoms are optically pumped from atoms of a first type of alkali metal in a sampling cell and hyperpolarized by spin exchange between the optical pumped electron of the alkali metal and the lithium atom electron, the lithium atoms being then oxidized into Liions. Then, the nuclear spin polarization of the Liions is transmitted to another nucleus of an anion. Thus it is possible to obtain hyperpolarized nuclei such as, for example,C,P orSi in solid or liquid phase, in large amounts and at high polarizing levels.