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Sealing structure of cryostat for superconducting cyclotron

A cryostat and cyclotron technology, applied in the direction of magnetic resonance accelerators, accelerators, electrical components, etc., can solve problems such as inability to disassemble, use, and inconvenient maintenance, to achieve convenient maintenance operations, meet positioning accuracy requirements, and seal stable effect

Active Publication Date: 2016-11-16
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing vacuum sealing method is sealed by argon arc welding, which cannot be disassembled, inconvenient for maintenance, and cannot meet the positioning accuracy requirements of the suspension system, so the existing vacuum sealing method cannot be used

Method used

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  • Sealing structure of cryostat for superconducting cyclotron
  • Sealing structure of cryostat for superconducting cyclotron
  • Sealing structure of cryostat for superconducting cyclotron

Examples

Experimental program
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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Such as figure 1 As shown, the cryostat includes a hollow ring structure composed of an annular inner cylinder 3 and an outer cylinder 4, and also includes an upper flange 2 and a lower flange 5 arranged on the upper and lower end surfaces of the ring structure. The inner cylinder 3, the outer cylinder 4, the upper flange 2, and the lower flange 5 together form an annular sealed chamber for placing superconducting coils of a superconducting cyclotron. In addition, the cryostat also includes an upper support cylinder 1 of the suspension system and a lower support cylinder 6 of the suspension system arranged on the upper flange 2 and the lower flange 5; , beam extraction system support tube 8, radial beam detection target support tube 9, suspension system lateral support tube 25,. A sealing structure of a cryostat of a superconducting cyclotron p...

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Abstract

The invention belongs to the technical field of a superconducting cyclotron, and specifically relates to a sealing structure of a cryostat for the superconducting cyclotron. The cryostat comprises an annular sealing cabin which is used for placing superconducting coils, wherein the annular sealing cabin comprises an inner cylinder body, an outer cylinder body, an upper flange and a lower flange; the cryostat also comprises a suspension system upper supporting cylinder and a suspension system lower supporting cylinder which are placed on the upper flange and the lower flange, and an electrostatic deflecting plate extraction electrode supporting cylinder, a beam extraction system supporting cylinder, a radial beam detection target supporting cylinder and a suspension system transverse supporting cylinder which are arranged on the outer cylinder body; and the sealing structure comprises a sealing structure between the upper flange and the lower flange, and the inner cylinder body and the outer cylinder body. The sealing structure can be detached and overhauled, is stable in the sealing effect, and capable of ensuring that the superconducting coils can be adjusted and positioned in a vacuum environment.

Description

technical field [0001] The invention belongs to the technical field of superconducting cyclotrons, and in particular relates to a sealing structure of a cryostat of a superconducting cyclotron. Background technique [0002] A cyclotron is a device that makes use of a magnetic field and an electric field to make charged particles undergo cyclotron motion, and is repeatedly accelerated by a high-frequency electric field during the motion. It is an important instrument in high-energy physics. The superconducting cyclotron is the core equipment of the current medical proton therapy accelerator. Medical proton therapy accelerators can treat tumors with protons and heavy ion rays in the microscopic world. It is the most advanced radiation therapy technology in the world today, and only a few developed countries have mastered and applied this technology. The research and development of superconducting cyclotrons has been launched in China, but has not yet been completed. [0003] ...

Claims

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Application Information

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IPC IPC(8): H05H13/00H05H7/00
CPCH05H7/00H05H13/00
Inventor 尹蒙王川张素平
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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