Carbon-ion-beam superconductive rotary Gantry

Abstract

The invention relates to a carbon-ion-beam superconductive rotary Gantry. The carbon-ion-beam superconductive rotary Gantry comprises a rotary bracket, a vacuum channel, a combined magnet and scanningmagnets, wherein the vacuum channel is formed in the rotary bracket and is used for providing a vacuum environment for transmission of ion beam currents; the combined magnet is arranged on the periphery of the vacuum channel and is used for carrying out direction guiding and envelope control on carbon ion beams; and the scanning magnets are arranged in front of the last magnet entrance of the combined magnet and are used for regulating positions of ion beam spots in an irradiation field plane at the tail end of the rotary Gantry. Compared with a traditional normal-temperature rotary Gantry, the small-sized and light-weight carbon-ion-beam superconductive rotary Gantry provided by the invention has the advantages that a system adopts currently the most forefront thermo-iron superconductingtechnique in the world, and the volumes and weights of all magnets are substantially reduced except the scanning magnets.

Description

technical field [0001] The invention relates to a miniaturized and lightweight carbon ion beam superconducting rotating Gantry (frame) applied to a cancer treatment accelerator, and relates to the application field of nuclear technology. Background technique [0002] Ion beam rotation Gantry is a cancer treatment accelerator terminal delivery system that uses pencil-shaped ion beams to treat tumors. It can rotate from 0゜-180゜ or 0゜-360゜ during the treatment of patients to effectively implement multi-directional tumor treatment. Horn therapy while mitigating the radiation damage caused by the ion beam to normal tissues and organs. Since R.R. Wilson proposed proton beam therapy for tumors in 1946, developed countries have successively built dedicated ion accelerator devices, aiming to provide variable-energy, finely adjustable ion beams to achieve conformal treatment of lesions. The conformal therapy refers to the process of high-precision operation of the ion beam that match...

AI Technical Summary

Problems solved by technology

Due to the large size and heavy weight of the Gantry, its actual debugging convenience and operating efficiency are not ideal. Therefore, Japan plans to start the development of the second-generation more compact superconducting carbon ion beam rotating Gantry.

Except for Japan, the research and development of miniaturized and lightweight superconducting carbon ion beam rotating Gantry in other countries at home and abroad has not yet started, while the design and construction of traditional carbon ion beam rotating Gantry is too large and heavy. The problem leads to a series of unsolvable problems such as material selection, structural design and fine control in practical application.

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