Patent · US Expired

X-ray image detector

US5396072A · kind A · utility

78Cited by

4References

13Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Ulrich Schiebel · Aachen, DE
Herfried Karl Wieczorek · Aachen, DE
Andreas Brauers · Aachen, DE

Key dates

Filing date	Aug 17, 1993
Grant date	Mar 7, 1995
Priority date	—
Expiry date	Aug 17, 2013

Classification

Technology area (CPC H)Electricity
CPC primaryH10F39/195
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention relates to an X-ray image detector, comprising a plurality of X-ray-sensitive sensors and having the following features: PA1 each sensor comprises a collecting electrode and a switching element which connects the collecting electrode to an output lead; PA1 a photoconductor layer is provided between the individual collecting electrodes and a bias electrode; PA1 the collecting electrodes form, in conjuction with reference electrodes, capacitances which can be charged by charge carriers generated in the photoconductor. The invention improves the effectiveness of such an X-ray image detector in that either the surface area of the collecting electrodes is increased or the electric field is distorted by a semiconductor layer so that the majority of the charge carriers generated in the photoconductor flow to the collecting electrodes.

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