Inclusive light ion tumor treatment device

Abstract

The invention relates to an inclusive light ion tumor treatment device. The inclusive light ion tumor treatment device comprises an ion source, a linear injector, a synchrotron, and a treatment terminal; the ion source comprises a shell and further comprises an air inlet pipeline, an evaporation furnace and a waveguide tube which are arranged in the shell; the input end of the linear injector is connected with the output end of the ion source through a low-energy beam transport line; the linear injector comprises an acceleration cavity and a magnetic focusing element sleeving the outer part of the acceleration cavity; the input end of the synchrotron is connected with the output end of the linear injector through a middle-energy beam transport line; a beam input end of the synchrotron is provided with an injection cutting magnet, an injection convex rail magnet and an injection electrostatic deflection plate; and the treatment terminal is connected with the synchrotron through a high-energy beam transport line. The device provided by the invention not only can utilize protons to carry out systemic treatment, but also can utilize light ion beams such as 3He, 4He and 7Li to carry out superficial layer (less than or equal to 8cm) tumor treatment.

Description

technical field [0001] The invention relates to an inclusive light ion tumor treatment device, which belongs to the technical field of medical equipment. Background technique [0002] Because the irradiation of ion beams on organisms has an inverted depth dose distribution and a relatively high relative biological effect, it can better avoid damage to normal cells while killing tumor cells, making ion cancer treatment an advanced international technology. Effective radiation therapy for cancer. At present, the most commonly used ions for ion cancer treatment are protons and carbon ions, both of which have their own advantages and disadvantages in terms of indications and cost. [0003] Carbon ion linear energy density, relative biological effect, and side scattering advantages are more significant, and can produce DNA double-strand breaks (DSBs) that are difficult to repair, and are usually used as the best choice for cancer treatment. Above 430MeV / u, the magnetic rigidity...

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Problems solved by technology

At present, the most commonly used ions for ion cancer treatment are protons and carbon ions, both of which have their own advantages and disadvantages in terms of indications and cost.

[0003] Carbon ion linear energy density, relative biological effect, and side scattering advantages are more significant, and can produce DNA double-strand breaks (DSBs) that are difficult to repair, and are usually used as the best choice for cancer treatment. Above 430MeV / u, the magnetic rigidity is relatively large, the device occupies a large area, and the investment scale is relatively high; the proton therapy device requires low magnetic rigidity, and usually uses a fixed energy accelerator, which is low in cost, relatively mature in technology, and occupies a small area. It is relatively difficult to promote in the market, but the linear energy transfer density (LET) of the proton beam is low, and it can only break the single strand of DNA, so the therapeutic effect on tumors is slightly worse

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