A kind of accelerating tube and linear accelerator

A technology of accelerating tubes and accelerating chambers, which is applied in the direction of linear accelerators, accelerators, electrical components, etc., can solve problems such as poor working stability and easy to damage the structural stability of accelerating tubes, and achieve the effect of improving stability
CN109496052BActive Publication Date: 2021-11-30SHANGHAI UNITED IMAGING HEALTHCARE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI UNITED IMAGING HEALTHCARE
Publication Date
2021-11-30

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Abstract

The invention discloses an accelerating tube and a linear accelerator. The accelerating tube includes: a waveguide and a plurality of accelerating cavities, the waveguide is coupled to one of the accelerating cavities; a coupling adjustment device, the coupling adjustment device is coupled to the waveguide, and is used to adjust the waveguide and the The coupling degree of the accelerating cavity. The embodiment of the present invention does not change the structure of the original acceleration cavity, but only adjusts the electromagnetic wave guided to the acceleration cavity without adjusting the electromagnetic wave in the acceleration cavity. Therefore, the stability of the acceleration cavity structure will not be damaged, thereby improving Accelerate the stability of tube work.
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Description

technical field

[0001] Embodiments of the present invention relate to the technical field of medical equipment, in particular to an accelerating tube and a linear accelerator. Background technique

[0002] Medical linear accelerator refers to an acceleration device that uses microwave electromagnetic fields to accelerate electron beams and has linear motion orbits. Electron beams accelerate in electromagnetic fields and gain energy, and bombard metal targets to generate X-rays. It has high dose rate, short irradiation time, and Large field, dose uniformity and small penumbra.

[0003] In the prior art, usually an accelerator only works optimally at one energy. When multiple levels of energy are required (for example, imaging energy and treatment energy), it is necessary to change the output power of the microwave source, so that the energy of the output electrons can be selected. 15MeV, 10MeV, 1.5MeV and 1.5MeV or less. However, the adjustment of different energy levels me...

Claims

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