X-ray detector

US7518116B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Silke Janssen · Heroldsbach, DE
• Karl Stierstorfer · Erlangen, DE

Key dates

• Filing date: May 14, 2007
• Grant date: Apr 14, 2009
• Expiry date: Oct 2, 2027

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N23/30
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

An X-ray detector is disclosed for detecting individual quanta. In at least one embodiment, the X-ray detector includes a plurality of detector elements and an evaluation unit that is connected to the latter for data purposes and is set up in such a way that each detector element is assigned a first energy threshold, wherein in each case one portion of various radiation spectra that can be picked up by the detector element exhibits an energy below the energy threshold, and a further portion of the respective radiation spectrum exhibits an energy above the energy threshold. Further, the energy thresholds of the various detector elements are set in a different fashion in such a way that the ratio between the portion, exhibiting an energy above or below the energy threshold in the case of a first radiation spectrum, of the radiation spectrum and the portion, exhibiting an energy above or below the energy threshold in the case of a second radiation spectrum, of the radiation spectrum is intermatched in the case of the various detector elements.