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US 4,165,472 AGranted
Rotating anode x-ray source and cooling technique therefor
AssigneeRockwell International Corporation
InventorDavid B. Wittry
Life of this patent
Estimating the term…
Abstract
A rotating anode x-ray source is disclosed having means by which to efficiently cool the electron beam target surface thereof. Energy is removed from the rotating anode target surface by a technique which includes liquid to vapor phase cooling.
Claims22
A rotating anode x-ray source and a cooling apparatus therefor, said rotating anode comprising:
- anode plate means having an electron beam target surface,
- shaft means connected to said anode plate means to provide rotation thereto,
- cooling channel means formed in said anode plate means and extending therein in a radial direction from said shaft means,
- chamber means formed in said anode plate means, said chamber means containing a liquid reservoir therein, and
- condensing surface means assembled between said cooling channel means and said chamber means and adapted to be cooled by said cooling channel means,
- the chamber means liquid reservoir being heated when an electron beam strikes said anode plate means target surface so as to thereby release vapor into said chamber means, whereby said cooled condensing surface means causes the vapor to condense thereon, the condensate being centrifugally pumped back to the reservoir as the anode rotates, and the heat that is applied to said anode plate means target surface being removed therefrom via said condensing surface means and said cooling channel means.
3 more elements
A rotating anode x-ray source and a cooling apparatus therefor, said rotating anode comprising:
- target means having an electron beam target surface thereof,
- said target means including a heat pipe having a supply of liquid therein,
- shaft means connected to said target means to provide rotation thereto,
- condensing surface means assembled adjacent said target means, and
- means to cool said condensing surface means,
- whereby heat that is applied to the electron beam target surface of said target means is removed therefrom by the conversion of heat pipe liquid to vapor, so that vapor condensate is formed on the walls of the heat pipe to be returned to the heat pipe liquid supply by centrifugal force as said target means rotates, such that heat, in the form of vapor, is conducted away from the target surface via said condensing surface means and said means to cool said condensing surface means.
3 more elements
A rotating anode x-ray source having an electron beam target surface and means by which to cool said target surface thereof,
- a supply of liquid within said anode and adjacent said target surface, whereby heat that is applied to said target surface causes the liquid in said anode to vaporize, and
- means by which to remove the heat of vaporization from said anode, so that said target surface thereof is cooled by means of converting the liquid into vapor.
Dependencies are inferred from the claim text.