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X-ray spherical tube

An X-ray and tube technology, which is applied in the field of X-ray tubes, can solve the problems such as the inability of current to form a loop, shorten the service life of the filament, and the inability of electrons to overflow, so as to reduce the cost of use and failure cycle, reduce performance degradation, and extend the The effect of service life

Pending Publication Date: 2019-09-06
KUNSHAN TRADITIONAL CHINESE MEDICINE HOSPITAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the long-term and excessive use of the filament will shorten the service life of the filament. Once the filament breaks, the current cannot form a loop, and the electrons cannot overflow, so X-rays cannot be generated, and it can only be shut down for maintenance.

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  • X-ray spherical tube
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Examples

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0025] refer to figure 1 As shown, an embodiment of an X-ray tube of the present invention includes a cathode, an anode and a vacuum space, and the cathode provides a sufficient number of electrons to obtain a high-speed electron flow. When the electrons hit the anode that cooperates with the cathode, X Rays; and in order for the electrons to not be blocked by gas molecules during high-speed motion and reduce energy, the cathode and anode need to be placed in a vacuum space.

[0026] The cathode includes at least four groups of independently arranged emission units 1 , and the emission units 1 are distributed in at least two planes; the emission units 1 are provided with several i...

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Abstract

The invention discloses an X-ray spherical tube comprising a cathode, wherein the cathode comprises at least four sets of independently arranged emission units, a plurality of independently controlledemitters are arranged in any one emission unit, and the emission units are distributed in at least two planes; an anode cooperating with the cathode, wherein the anode comprises a plurality of targetbodies cooperating with the emitter, the target bodies are arranged to be corresponding to the emitters, and the target bodies receive the electrons emitted from the emitters to generate an X-ray beam to converge for imaging; and a vacuum space in which the cathode and the anode are located. The electrons can be emitted by using the nano semiconductor material so as to reduce the restriction to the cathode caused by the performance degradation and the instability of filaments after long-term use in the prior art.

Description

technical field [0001] The invention relates to the field of medical imaging equipment, in particular to an X-ray tube. Background technique [0002] X-rays are widely used in CT scanners. The core component for generating X-rays is the X-ray tube. There are four main conditions for the tube to produce X-rays: 1. The cathode filament, which is used for current to pass through the filament and heat the filament, so that the filament overflows with electrons. ; 2. The anode target surface is divided into a fixed anode target surface (lower power) and a rotating anode target surface (higher power). , tungsten, rhodium, molybdenum, etc. or their alloys; 3. The high vacuum environment of the ball tube is to make the electrons unimpeded in the process of advancing, and the anode and cathode metals are not easy to oxidize in the vacuum environment; 4. The metal between the cathode and the anode The function of clamping high voltage is to accelerate the electrons overflowing from t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J35/06H01J35/14H01J35/24
CPCH01J35/06H01J35/14H01J35/24
Inventor 陈基炜涂彧黄圣雁
Owner KUNSHAN TRADITIONAL CHINESE MEDICINE HOSPITAL