Manufacturing method of four-channel special-shaped deflection magnet in vacuum

Abstract

The invention relates to the technical field of the technologies for manufacturing ion beam deflection electromagnets-four-channel special-shaped deflection magnets, in particular to a method for manufacturing a vacuum special-shaped deflection magnet with four internal channels. The method for manufacturing the vacuum special-shaped deflection magnet with the four internal channels comprises the steps that the periphery, the upper surface and the lower surface of a left magnet body, the periphery, the upper surface and the lower surface of a right magnet body and the periphery, the upper surface and the lower surface of a middle magnet body are respectively machined, and oblique planes of the three magnet bodies are machined on a large CNC machining center; with the bottom surfaces of the magnet bodies as the criterion, coil grooves are machined in the three magnet bodies respectively on the large CNC machining center; the machined magnet bodies are preassembled; a coil is wound around a machined coil winding die; epoxy vacuum pouring is conducted on the coil; the coil is packaged in a vacuum box after epoxy vacuum pouring is completed; helium mass spectrometer leak detection is conducted on the vacuum box containing the coil, wherein the vacuum degree reaches 1*10<-8> Pa, and the vacuum leak rate is not higher than 1*10<-9>Pa.L / S; the vacuum box, containing the coil, judged to be qualified through leak detection and an iron core are assembled together, and magnetic field testing is conducted. According to the method for manufacturing the vacuum special-shaped deflection magnet with the four internal channels, the magnet manufactured according to the method is simple in structure, assembly is easy and fast, adjustment is convenient, the machining precision is high, and the boundary dimension error and the shape error are small.

Description

technical field [0001] The invention relates to the technical field of manufacturing process of ion beam deflection electromagnet---four-channel special-shaped deflection magnet, especially relates to a manufacturing method of four-channel special-shaped deflection magnet in vacuum. Background technique [0002] The deflecting dipole magnet is a magnet structure widely used in particle accelerator magnet systems. With this structure, the ion beam can be subjected to a certain Lorentz force when passing through the magnetic channel formed by the two magnetic poles. Under the action of this force, it deflects at a certain angle. If multiple ion beams need to be deflected at the same time and do not interfere with each other, multi-magnetic channels, that is, multi-channel special-shaped deflection magnets, are used to ensure that the ion beams can run according to the designed orbit. The four-channel special-shaped deflection magnet in the vacuum is placed in a vacuum with a...

AI Technical Summary

Problems solved by technology

[0003] For the manufacturing method of magnets, the existing technology is very effective for the manufacture of ordinary deflection dipole magnets, but for multi-channel special-shaped deflection magnets in a vacuum environment, especially for those that require the beams passing through the channels to meet the spatial focusing angle For four-channel special-shaped deflection magnets, it is difficult to control the shape, the relative position between multiple channels is difficult to control, and the repeated positioning is difficult.

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