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Energy switch accelerating tube and application thereof

An energy switch, accelerating tube technology, applied in linear accelerators, X-ray/γ-ray/particle irradiation therapy, electrical components, etc., can solve the problems of inaccuracy of treatment, the inability of imaging system and treatment system to be coaxial, etc. To achieve the effect of improving tumor control and precise radiation therapy

Active Publication Date: 2021-06-22
中科超精(南京)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the radiotherapy accelerator in the prior art has the defect that the imaging system and the treatment system cannot be coaxial and coaxial during the radiotherapy process, so the position deviation between the imaging system and the treatment system will introduce treatment inaccuracy

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  • Energy switch accelerating tube and application thereof
  • Energy switch accelerating tube and application thereof
  • Energy switch accelerating tube and application thereof

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with specific implementation methods and accompanying drawings.

[0020] Such as figure 1 As shown, the energy switch accelerating tube of the present invention includes an electron gun 1 and an accelerating tube 2 . The accelerating tube 2 can provide therapeutic beams with various energies, and the beam energies are 6 MeV, 10 MeV and above 10 MeV. In this embodiment, the accelerating tube 2 adopts a medium-to-high-energy standing wave linear accelerating tube, which can generate a treatment beam with higher energy and higher dose rate; at the same time, compared with the traveling wave accelerating tube, the standing wave accelerating tube has a high shunt impedance. Large quality factor and higher acceleration efficiency. The waveguide coupler 14 is vertically connected above the accelerating tube 2 , the transmission waveguide 16 is connected above the waveguide coupler 14 , the magnetr...

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Abstract

The invention discloses an energy switch accelerating tube and application thereof. The energy switch accelerating tube comprises an electron gun and an accelerating tube connected to the electron gun; a waveguide coupler is connected to the upper portion of the accelerating tube, a transmission waveguide is connected to the upper portion of the waveguide coupler, a magnetron is connected to the upper portion of the transmission waveguide, the magnetron is connected with a modulator, and microwave power output by the magnetron is controlled by adjusting the modulator; the upper portion and the lower portion of the accelerating pipe are vertically connected with energy adjusting devices, and the two energy adjusting devices are arranged in a staggered mode. A plurality of accelerating cavities are formed in the accelerating tube, each energy adjusting device comprises a coupling side cavity and an adjusting ring located in the coupling side cavity, and the adjusting rings are rotated to change the electric field distribution of the upstream and the downstream of the accelerating cavity coupled with the coupling side cavity. According to the invention, the imaging beam and the treatment beam are coaxial, the dose rate is higher, and imaging rays less than 1.5 MeV and treatment rays with various energies are obtained; the annular radiotherapy accelerator can ensure that imaging and treatment are coaxial, and has treatment beams with large dose rate and high energy.

Description

technical field [0001] The invention belongs to medical equipment, in particular to an energy switch accelerating tube and its application. Background technique [0002] Radiation therapy accelerators can be divided into ring machines and C-arm machines according to their rack forms; according to the output energy of their accelerator tubes, they can be divided into low-energy machines (4-6MeV), medium-energy machines (8-15MeV) and high-energy machines. Machine (20-25MeV) three kinds. [0003] During radiation therapy, the precision of radiation delivery is critical. At present, radiation therapy accelerators all use therapeutic-grade beam (6MV) imaging for setup verification, and the attenuation difference of different tissues of the human body is small, so the imaging effect of this method is poor. Therefore, the current radiotherapy accelerators have two sets of systems, which are used for imaging and treatment respectively: the imaging system is mainly a ball tube and ...

Claims

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Application Information

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IPC IPC(8): H05H9/04A61N5/10
CPCA61N5/10H05H9/04A61N2005/1092
Inventor 不公告发明人
Owner 中科超精(南京)科技有限公司
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