Reflective X-ray tube cooling mechanism

Abstract

The invention relates to the technical field of X-ray tubes, and discloses a reflective X-ray tube cooling mechanism. The reflective X-ray tube cooling mechanism comprises a glass cover, an anode target and a cooling cover, wherein the top end of the glass cover is provided with an expansion cover at the position corresponding to the anode target, the expansion cover is located in the cooling cover, and a heat conduction crystal evaporated by heating is placed at the inner bottom of the expansion cover. According to the invention, the top end of the glass cover is provided with the expansion cover at the position corresponding the anode target in the cooling cover, the heat conduction crystal is placed at the inner bottom of the expansion cover, the characteristic that thermal decomposition of the heat conduction crystal is reversible reaction is utilized, the heat generated by the anode target is absorbed, the gas generated by thermal decomposition of the anode target rises to an upper space in the expansion cover, is cooled by circulating water in the cooling cover and then is subjected to chemical combination reaction for crystallization, and the circulation can diffuse the heatdissipation area to the surface of the whole expansion cover on the basis of the original heat dissipation area, so that the heat dissipation area can be greatly increased.

Description

technical field [0001] The invention relates to the technical field of X-ray tubes, in particular to a reflection type X-ray tube cooling mechanism. Background technique [0002] The basic structure of an X-ray tube is composed of a cathode (filament), an anode (target), a focusing system, an anode cover and a window, and they are sealed in a high-vacuum glass (ceramic) casing. The exit window of the reflective X-ray tube is mostly located on the side of the light tube, such as figure 1 As shown, it includes a glass cover 1, a tungsten wire 2, a high-voltage plug 3, an anode target 4, a beryllium window 5 and a cooling cover 6. After the high-voltage plug 3 is connected to electricity, the tungsten wire 2 is energized to heat up and generate an electron cloud. Under the action of high voltage, the electrons are accelerated to the anode target 4, during the process of electron bombardment of the anode target 4, X-rays will be generated, and the X-rays will be obtained from t...

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the use of the existing X-ray tubes proposed in the background technology, the present invention provides a reflective X-ray tube cooling mechanism, which has the advantage of better cooling effect and solves the problems raised in the above background technology

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