Sealing transmission rod for self-sealing protective heavy ion accelerator storage chamber stripping film

Abstract

The invention discloses a sealing transmission rod for self-sealing protection of a stripping film of a storage chamber of a heavy ion accelerator, the front end of the transmission rod is connected with a film clamping assembly used for replacing a film, the transmission rod is connected with a sealing assembly at the position behind the film clamping assembly, and when the front end of the transmission rod extends into a dipolar iron vacuum chamber, the sealing assembly is connected with the film clamping assembly. The sealing assembly is located in a synchrotron dipolar iron vacuum pipeline, one end of the dipolar iron vacuum pipeline is communicated with a dipolar iron vacuum chamber, and the other end of the dipolar iron vacuum pipeline is communicated with a stripping film storage chamber. The sealing assembly is used for sealing and separating the two sections of dipolar iron vacuum pipeline cavities in front of and behind the sealing assembly, and then the dipolar iron vacuum chamber and the stripping film storage chamber are separated. The base and the sealing ring are low in cost and convenient to produce and purchase, and the equipment construction cost is reduced; the sealing structure is simple, the sealing effect is outstanding, and the complexity of equipment can be greatly reduced, so that the reliability of the equipment is improved, and the construction and maintenance cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of heavy ion accelerators, and in particular relates to a sealing transmission rod for self-sealing and protecting the peeling film of a heavy ion accelerator storage room. Background technique [0002] HIMM (Heavy Ion Medical Machine) is the first carbon ion therapy equipment with independent intellectual property rights in my country. Its main part mainly includes an isochronous cyclotron injector, a synchrotron with acceleration energy up to 400Mev, and a beam transmission line connected with 5 treatment terminals. [0003] The synchrotron adopts the method of stripping and injecting, that is, using C 5+ The ions bombard the carbon membrane (stripped off the membrane) to strip off its last extranuclear electron, transforming into C 6+ ion. In order to ensure the efficiency of beam injection into the synchrotron, the thickness of the carbon film is only 15μg / cm 2 (about 0.1 μm), its material is a britt...

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a self-sealing seal transmission rod that protects the peeling film of the heavy ion accelerator storage room, the purpose is to solve the problem between the existing heavy ion synchrotron system and the storage room. The partition equipment is more complicated, takes up a lot of space, is difficult to control, and has a higher risk of equipment failure

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