Superconducting proton device energy selecting system and realizing method thereof

Abstract

The invention discloses a superconducting proton device energy selecting system and a realizing method thereof. The energy selecting system comprises the components of an energy reduction segment which performs energy reduction, energy spreading and divergency adjustment on an entering photon beam; a focusing and correcting segment B which detects divergency of the beam, performs signal feedback to a control system, wherein the control system adjusts magnitude of a magnetic field and corrects the movement track of the beam; a deflecting segment C which realizes higher amplitude of the protonswith higher energy spreading degree from the central track of the beam in a radial direction; a secondary focusing segment D which focuses the beam again; and an energy selecting segment E which realizes passing of the proton beam at the designed central position, thereby realizing preliminary screening of the beam. According to the superconducting proton device energy selecting system and the realizing method thereof, the energy and divergency of the proton beam, screening quality of the proton beam and making the making satisfy the requirement of a treatment end.

Description

technical field [0001] The invention relates to the technical field of proton cyclotron energy selection device engineering, in particular to an energy selection system for a superconducting proton device and an implementation method thereof. Background technique [0002] Proton radiotherapy is currently internationally recognized as the most cutting-edge radiotherapy technology. Different from the previous radiotherapy method of "shooting birds" with X-rays, when the protons are accelerated to about 70% of the speed of light by the synchrotron, the proton rays are drawn out and injected into the human body, and at the moment when they reach the lesion precisely, they "three-dimensionally" treat the tumor. "Directional blasting" does not harm normal cells "one soldier, one soldier", especially for head and neck, ophthalmology, chest, digestive tract and other recurrent and refractory malignant tumors. [0003] The energy selection system is a very important part of proton r...

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Problems solved by technology

[0004] The research and development status of the energy selection system is relatively mixed. At present, there are more than a dozen production and research institutions abroad, and their technical products are currently in a state of confidentiality, and there is still a blank in China; moreover, the product performance and shape of different manufacturers are quite different, which is serious. It affects the standardized production of the product, which is not conducive to the promotion and application of the equipment

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