Abstract:
A radiation source for generating electromagnetic radiation includes an anode, a cathode, and a discharge space. The anode and the cathode are configured to create a discharge in a substance in the discharge space to form a plasma so as to generate the electromagnetic radiation. The radiation source also includes a fuel supply constructed and arranged to supply at least a component of the substance to a location near the discharge space. The fuel supply is located at a distance from the anode and the cathode. The radiation source also includes a further supply constructed and arranged to create and/or maintain a cooling and/or protective layer on or near the anode and/or cathode.
Abstract:
The invention relates to an X-ray tube having a rotary anode which is rotatably supported in a vacuum-tight housing by at least one metal-lubricated sliding bearing of which at least the cooperating bearing surfaces consist of a W-alloy and in which the lubricant is Ga or a Ga-alloy. In order to extend the life of the X-ray tube, in particular at operating temperatures of the bearing above 400 DEG C, a mechanically readily machinable W-alloy is used which comprises from 2 to 27% by weight of Re.
Abstract:
A rotary anode for an X-ray tube containing an anode plate of difficultly meltable material upon which lies the focal spot path, is characterized by the provision of radial cuts in the plate.