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. 03, 2009
Filed:
Jan. 31, 2007
Joachim Baumann, München, DE;
Christian David, Lauchringen, DE;
Martin Engelhardt, München, DE;
Jorg Freudenberger, Eckental, DE;
Eckhard Hempel, Fürth, DE;
Martin Hoheisel, Erlangen, DE;
Thomas Mertelmeier, Erlangen, DE;
Franz Pfeiffer, Brugg, CH;
Stefan Popescu, Erlangen, DE;
Manfred Schuster, München, DE;
Joachim Baumann, München, DE;
Christian David, Lauchringen, DE;
Martin Engelhardt, München, DE;
Jorg Freudenberger, Eckental, DE;
Eckhard Hempel, Fürth, DE;
Martin Hoheisel, Erlangen, DE;
Thomas Mertelmeier, Erlangen, DE;
Franz Pfeiffer, Brugg, CH;
Stefan Popescu, Erlangen, DE;
Manfred Schuster, München, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A focus-detector arrangement includes a radiation source with a focus, arranged on a first side of the subject, for generating a fan-shaped or conical beam of rays; at least one X-ray optical grating arranged in the beam path, with at least one phase grating arranged on the opposite second side of the subject in the beam path generating an interference pattern of the X-radiation preferably, in a particular energy range; and an analysis-detector system which detects at least the interference pattern generated by the phase grating in respect of its phase shift with position resolution. According to at least one embodiment of the invention, at least one X-ray optical grating including bars which are free from overhangs form shadows in the beam path of the fan-shaped or conical beam of rays.