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X-ray tube anodes

An X-ray tube and anode technology, applied in the field of X-ray tubes, can solve the problems of complex and expensive anodes

Inactive Publication Date: 2011-08-31
CXR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These anodes can extend to several meters in length and manufacturing a single piece of the anode is usually complex and expensive

Method used

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  • X-ray tube anodes
  • X-ray tube anodes
  • X-ray tube anodes

Examples

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Embodiment Construction

[0019] refer to Figure 1a , an anode 1 according to one embodiment of the invention comprises a plurality of thermally conductive anode segments 2 screwed by screws 6 to a rigid one-piece support member in the form of struts 4 . The cooling channels 8, 10 extend along the length of the anode between the anode segments and the struts and comprise coolant conduits arranged in the form of tubes 12 carrying cooling fluid.

[0020] Anode segment 22 is formed from a metal such as copper and is held at a high voltage positive potential relative to the electron source. Each anode segment 2 has an angled front surface 14 coated with a suitable target metal, such as molybdenum, tungsten, silver or uranium, chosen to generate the desired X-rays when electrons are incident thereon. This layer of target metal is applied to front surface 14 by one of a number of methods including sputter coating, electroplating deposition, chemical vapor deposition and combustion spray coating. Alternativ...

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PUM

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Abstract

An anode for an X-ray tube comprises at least one thermally conductive anode segment in contact with a rigid support member and cooling means arranged to cool the anode. The anode may comprise a plurality of anode segments aligned end to end, each in contact with the support member.

Description

technical field [0001] The present invention relates to X-ray tubes and in particular to the cooling of the anode of the X-ray tube. Background technique [0002] It is known to provide an X-ray tube comprising an electron source and a metal anode, wherein the anode is at a positive potential relative to the electron source. The electric field accelerates electrons emitted towards the anode. When they hit the anode, they lose some or all of their kinetic energy, most of which is released as heat. This heat reduces target life, so the anode is usually cooled. Traditional methods include: air cooling, where the anode is typically operated at ground potential, with heat conducted to the surroundings through air-cooled heat sinks, and rotating the anode, where the illuminated spot can cool as it rotates before being illuminated again. [0003] In some cases, a moving X-ray source is required, generated by scanning an electron beam along an arcuate or linear anode. These anod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J35/12H01J35/08
CPCH01J2235/081H01J2235/1204H01J2235/1262H01J35/12H01J2235/086H01J2235/083H01J35/08H01J35/13
Inventor 爱德华.J.莫顿拉塞尔.D.卢格马丁.亨特
Owner CXR
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