X-ray tube with bonded target and bearing sleeve

A technology of X-ray tube and bearing sleeve, which is applied in the direction of X-ray tube, X-ray tube electrode, X-ray tube cooling, etc., can solve inefficient heat transfer, improper X-ray tube temperature, and does not allow continuous X-ray tube Operation and other issues

Inactive Publication Date: 2012-05-23
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, however, inefficient heat transfer to the shaft may not allow continuous operation of the x-ray tube, and may also cause unsuitable x-ray tube temperatures, which may reduce the projected useful life of the tube

Method used

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  • X-ray tube with bonded target and bearing sleeve
  • X-ray tube with bonded target and bearing sleeve
  • X-ray tube with bonded target and bearing sleeve

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Embodiment Construction

[0015] As noted above, heat conduction between the various components of the X-ray tube can be important to allow continued use of the X-ray tube and the utilization of high power (ie, high X-ray flux) imaging sequences. An example of an imaging sequence that would benefit from high X-ray flux is a computed tomography (CT) imaging sequence in which a source of X-ray radiation (i.e., a source including an X-ray tube) surrounds a patient or subject of interest on a gantry. The examiner moves. Due to the movement of the x-ray tube around the patient, it is desirable to provide a flux of x-rays sufficient to generate imaging through the subject of interest and at low noise levels. Accordingly, there is a continuing need for improved heat conduction away from an X-ray target in an X-ray tube.

[0016] For some x-ray targets, there may be several design considerations including heat conduction, retention of the target limiting target movement, and maintenance of bearing tolerances....

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Abstract

The embodiments disclosed herein relate to the thermal regulation of components within an X-ray tube by transferring heat between the anode and the rotary mechanism to which the anode is attached. For example, in one embodiment, an X-ray tube is provided. The X-ray tube generally includes a fixed shaft, a rotating bearing sleeve disposed about the fixed shaft and configured to rotate with respect to the fixed shaft via a rotary bearing, and an electron beam target disposed about the bearing sleeve and configured to rotate with the bearing sleeve. The electron beam target is permanently bonded to the bearing sleeve.

Description

technical field [0001] The subject matter disclosed herein relates to thermal regulation of components in an X-ray tube, and more specifically, to heat transfer between the anode and the rotating mechanism to which the anode is attached. Background technique [0002] Various diagnostic and other systems may utilize X-ray tubes as radiation sources. In medical imaging systems, for example, x-ray tubes are used as sources of x-ray radiation in projection x-ray systems, fluoroscopy systems, tomosynthesis systems, and computed tomography (CT) systems. Radiation is emitted in response to control signals during an examination or imaging sequence. Radiation passes through a subject of interest, such as a human patient, and a portion of the radiation strikes a detector or photographic plate that collects image data. In a conventional projection x-ray system, the photographic plate is developed to produce an image that can be used by a radiologist or attending physician for diagnos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J35/26H01J35/10
CPCH01J2235/1066H01J35/101H01J2235/1208H01J2235/1295H01J35/105Y10T29/49826H01J35/107H01J35/106H01J35/1024
Inventor D·R·艾伦M·赫伯特K·戴顿
Owner GENERAL ELECTRIC CO
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