Drift tube, drift tube linear accelerator and machining method of drift tube

Abstract

The invention provides a drift tube, a drift tube linear accelerator and a drift tube machining method. The drift tube comprises a drift tube main body assembly and a drift tube end cap; the drift tube main body assembly comprises a drift tube main body, and the drift tube end cap is fixedly arranged at one end of the drift tube main body through threaded connection. The drift tube can be appliedto the technical field of linear accelerators, and the drift tube main body and the drift tube end cover are connected through threads, so that when the drift tube is machined, a support rod can be firstly machined, then a permanent magnet quadrupole magnet is loaded, and the appearance size of the drift tube main body can be repaired and the permanent magnet quadrupole magnet can be assembled bytaking the support rod as a reference; therefore the machining difficulty of the drift tube main body is reduced, the assembly precision of the permanent magnet quadrupole magnet is higher, and the number of magnetic measurement times is effectively reduced, so that the processing of the drift tube is simpler, the cost is lower, the precision is higher, and the reliability of the drift tube and the overall yield of the machined part are improved.

Description

technical field [0001] The invention relates to the technical field of linear accelerators, in particular to a drift tube, a drift tube linear accelerator including the drift tube, and a processing method for the drift tube. Background technique [0002] In the prior art, the connection between the main body of the drift tube and the end cover is electron beam welding. Due to the structure of the drift tube itself, the welding joint between the main body of the drift tube and the end cover is within the projection range of the support rod. , the electron beam will be blocked by the support rod, which leads to the fact that the existing drift tube basically welds the end cap first, and then welds the support rod. The processing difficulty caused by this processing sequence is as follows: [0003] 1. The magnet should be installed into the main body of the drift tube before welding the end cover. Due to the reason of the magnet, the cutting fluid cannot be used in the process...

AI Technical Summary

Problems solved by technology

[0003] 1. The magnet should be installed into the main body of the drift tube before welding the end cover. Due to the reason of the magnet, the cutting fluid cannot be used in the processing process, which makes the overall shape of the drift tube difficult to process and difficult to meet the smoothness requirements;

[0004] 2. First install the magnet and weld and fix the main body and end cover of the drift tube, and then process the support rod based on the completed assembly. Because the size of the alignment reference is small, when using a small reference to process a distant entity, in order to ensure the size and tolerances, it is necessary to process precision tooling in the process of processing, and strictly control the processing parameters, resulting in difficult processing

[0005] Therefore, the overall processing accuracy of the existing drift tube is reduced and the processing cost is increased.

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