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. 14, 2008
Filed:
Jan. 22, 2004
Gereon Vogtmeier, Aachen, DE;
Francisco Morales Serrano, Eindhoven, NL;
Roger Steadman, Aachen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to an X-ray detector for detecting X-radiation, as used, in particular, in computer tomographic (CT) systems. The X-ray detector in accordance with the invention is composed of a photo sensor device, which comprises individual detector elements (), above which scintillator elements () are disposed. These convert the incident X-ray light () into visible or UV light (), which is detected by a photodiode () located on the detector element (). In accordance with the invention, a micro-lens (), which focuses the light () departing from the scintillator element () onto the photodiode (), is disposed between the scintillator element () and the detector element (). It is possible, in this manner, to use large areas of the detector element () for further electronic components () outside the photodiode (), and, at the same time, to ensure a high DQE (Detection Quantum Efficiency) in that the light () departing from the scintillator element () is virtually fully exploited. The crosstalk from scatter radiation from adjacent detector elements is effectively prevented simultaneously.