Abstract: A device for transporting a medium includes at least one channel which extends in an axial direction and through which the medium is guided. The channel is enclosed by an electrically conductive inner envelope that is connected to a first potential equalization conductor. An electrically conductive outer envelope is provided between the channel and an electrically conductive outer casing and is connected to an electrically conductive second potential equalization conductor. Arranged between the channel and the outer envelope is an electrically insulating intermediate layer which is produced from heat-insulating material.

Abstract: An x-ray diagnostics installation has an x-ray source, an x-ray image intensifier video chain, and a control circuit connected to the output of the video chain which includes a circuit for data reduction which combines a number of image points of the total x-ray image into smaller image regions. A threshold circuit for contour recognition is connected to the output of the reduction circuit, which compares the measured values of the individual image regions to a threshold, and transmits through only those measured signals corresponding to darker regions of the image, and thus corresponding to image regions of relevance.