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:
Feb. 02, 2010
Filed:
Feb. 11, 2005
Geoffrey Harding, Hamburg, DE;
Gerhard Martens, Henstedt-Ulzburg, DE;
Hans Barschdorf, Dassendorf, DE;
Bernd Schweizer, Herzogenrath, DE;
Geoffrey Harding, Hamburg, DE;
Gerhard Martens, Henstedt-Ulzburg, DE;
Hans Barschdorf, Dassendorf, DE;
Bernd Schweizer, Herzogenrath, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to a method and a device for determining the distribution of an X-ray fluorescence (XRF) marker () in a body volume (). The body volume () is irradiated with a beam of rays () from an X-ray source () with a first ray component with a quantum energy just above and a second ray component with a quantum energy just below the K-edge of the XRF marker (). Secondary radiation emitted from the body volume () is detected in a location-resolved way by a detector (). To separate the X-ray fluorescence components in the secondary radiation from background radiation, the body volume is irradiated for a second time with a beam of rays from which the first ray component has been substantially removed by a filter () made from the material of the XRF marker.