Superconductive proton cyclotron beam deflector

A technology of cyclotron and deflection device, applied in magnetic resonance accelerators, accelerators, electrical components, etc., to achieve the effects of reducing processing difficulty, improving working ability, and optimizing structure

Active Publication Date: 2017-11-07
HEFEI CAS ION MEDICAL & TECHNICAL DEVICES CO LTD
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  • Abstract
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Problems solved by technology

[0004] Aiming at the problem of beam extraction in a superconducting proton cyclotron,

Method used

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  • Superconductive proton cyclotron beam deflector
  • Superconductive proton cyclotron beam deflector
  • Superconductive proton cyclotron beam deflector

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Embodiment Construction

[0019] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] A superconducting proton cyclotron beam deflection device, such as figure 1 As shown, it is mainly composed of a grounding shell 3, a beam cutting plate 7, an outer beam cutting plate clamping ring 6, an inner beam cutting plate clamping ring 5, an insulator 2 and a high voltage electrode 1. Since high voltage devices may spark when operating in a vacuum environment, it is required to keep a safe distance between the surface of the high voltage electrode and the grounded metal surface.

[0021] Among them, the groun...

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Abstract

The invention discloses a superconductive proton cyclotron beam deflector, which comprises a space formed by a grounding housing, a beam cutting board, an outer beam cutting board clamp ring and an inner beam cutting board clamp ring. The space is internally provided with a high-voltage electrode; and the high-voltage electrode is fixedly arranged to the grounding housing through an insulator. The thickness of the beam cutting board is 0.1-0.3 mm at a beam inlet end, the thickness of the middle portion of the beam cutting board changes continuously, and the thickness of the beam cutting board is 1-3 mm at a beam outlet end. A sine gap is designed on the beam cutting board; and the outer beam cutting board clamp ring is provided with a water cooling loop. The structure of the beam deflector in a superconductive proton cyclotron is optimized; and through design of the cutting board structure provided with a replaceable striking plate and the water cooling loop and capable of resisting beam heat deposition, work capability of the beam deflecting mechanism can be improved, meanwhile, processing difficulty of beam deflecting mechanism can be reduced and manufacture cost is reduced.

Description

technical field [0001] The invention belongs to the field of cyclotron design, in particular to a beam deflection device suitable for the extraction of the beam of a 200 MeV superconducting proton cyclotron. Background technique [0002] Superconducting proton cyclotrons are widely used in nuclear medicine, nuclear physics basic research and other fields. Compared with normal temperature cyclotrons, superconducting proton cyclotrons have the advantages of compact structure and low operating power loss. Among them, the beam deflection device in the beam extraction area is one of the key components of this type of accelerator. Due to the limitation of space, in superconducting proton accelerators, the beam deflection device used mostly adopts the electrostatic deflection method. The electrostatic deflection method of beam extraction uses electrostatic deflection voltage to exert an outward force on the beam, so that the beam leaves the acceleration region and enters the frin...

Claims

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Application Information

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IPC IPC(8): H05H7/00H05H13/00
CPCH05H7/001H05H13/005H05H2007/002
Inventor 裴坤常佩丁开忠李君君宋云涛
Owner HEFEI CAS ION MEDICAL & TECHNICAL DEVICES CO LTD
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