ELEMENT OF ANODE DISC WITH FIRE-RESISTANT INTERMEDIATE LAYER AND FOCAL VPS

摘要

1. Anode (30), including: a carbon or ceramic substrate (50); an electrolytically deposited layer (52) of refractory metal carbide, covering at least a portion (36) of the focal path of the substrate; an electrolytically applied layer (54) of plastic a refractory metal covering the carbide layer (52) at least in the focal path portion; and a layer (56) of heavy refractory metals applied by plasma vacuum spraying, covering the layer (54) of ductile refractory metal at least in the focal path. The anode according to claim 1, wherein the layer of heavy refractory metals applied by plasma vacuum deposition is a tungsten-rhenium alloy. Anode according to any one of paragraphs. 1 and 2, wherein the ductile refractory metal layer (54) includes niobium and the carbide layer (52) includes niobium carbide. 4. X-ray tube (14), including: vacuum sheath (40); anode according to any one of paragraphs. 1-3; motor (32) for rotation of the anode and cathode (34). 5. An imaging device comprising: a gantry (12), an X-ray tube (14) according to claim 4, installed on the gantry; There is a radiation detector (16) mounted on the gantry and located across the research area (20) from the side of the X-ray tube (14). 6. The diagnostic imaging device (10) according to claim 5, further comprising: a processor connected to the detector (16) to convert signals from it into a visual image; and a display device (24) on which the visual image is displayed. 7. A method for manufacturing an anode (30) according to any one of paragraphs. 1-3, including: formation (60) of a carbon or ceramic substrate (50); coating (66) electrolytically of the substrate