X-ray tube anode cold plate

A x-ray tube assembly comprising:

• an x-ray tube housing;
• a cathode assembly;
• a rotating anode assembly;
• an insert frame supported within the x-ray tube housing, said insert frame defining a substantially evacuated envelope in which the cathode and anode assemblies operate to produce x-rays;
• and
• an anode cold plate disposed between the anode assembly and one end of the x-ray tube housing, the anode cold plate including:
• a cover having a top surface in thermal contact with the anode assembly;
• a basin connected to a peripheral portion of a bottom surface of the cover;
• an inlet tube disposed at a first end of the basin which receives dielectric liquid coolant;
• and
• an outlet disposed at a second end of the basin.

An x-ray tube assembly comprising:

• an x-ray tube housing;
• a cathode assembly;
• a rotating anode assembly including:
• an anode plate rigidly connected to a shaft and rotor;
• a bearing housing in which a plurality of bearing rotatably support the shaft;
• and
• a heat barrier substantially surrounding and spaced apart from the bearing housing;
• an insert frame supported within the x-ray tube housing, said insert frame defining a substantially evacuated envelope in which the cathode and anode assemblies operate to produce x-rays;
• and
• an anode cold plate including:
• a base plate in thermal communication with and extending from bottom surfaces of (a) the bearing housing and (b) the heat barrier, said base plate having surface area increasing protrusions extending from the bottom surface.

A rotating anode x-ray tube comprising:

• an anode disk connected to a shaft;
• a bearing housing in which a plurality of bearings rotatably support the shaft;
• a drive for rotating the shaft and the anode disk;
• a heat barrier substantially surrounding and spaced apart from the bearing housing and disposed between the anode disk and the bearing housing;
• an anode cold plate assembly mounted below and with one face in direct contact with (i) the bearing housing, and (ii) the heat barrier to move radiant heat intercepted by the heat barrier directly into the cold plate assembly, the anode cold plate having an opposite face over which a liquid coolant flows;
• a cathode disposed opposite to and displaced from the anode disk;
• an evacuated envelope within which the cathode, anode disk, shaft, bearing housing, and heat barrier one face are at least partially disposed, the heat barrier opposite face being disposed outside the evacuated envelope.