Patent · US Expired

Apparatus for recording X-ray images

US4554453A · kind A · utility

33Cited by

5References

12Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Ingmar Feigt · Langensendelbach, DE
Hans-Werner Heinrich · Viernheim, DE
Karl Kempter · Hersbruck, DE

Key dates

Filing date	Mar 28, 1984
Grant date	Nov 19, 1985
Priority date	—
Expiry date	Mar 28, 2004

Classification

Technology area (CPC G)Physics
CPC primaryG01T1/246
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

The invention relates to an apparatus for the taking of X-ray pictures, where there are between two radiation-transmitting electrodes two solid substance layers whose free sides lie in a charge storage layer. The first electrode is a photo-conducting layer which is impinged upon by image rays, while the second electrode is a photo-conducting layer which is impinged upon by an optical ray moved in a scanning raster, so that a reproducible signal is obtained. According to the invention, the time required per image is reduced and increased quantum yield is achieved at increased signal-to-noise ratio and greater dynamic range. There is correlated to the first photo-conducting layer a luminophor which transforms the image rays into light which is preferentially absorbed in this layer. An apparatus according to the invention is usable in particular in medical radio-diagnostics.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.