Double-spoke column spoke superconducting cavity and manufacturing method thereof

Abstract

The invention discloses a double-spoke column spoke superconducting cavity and a manufacturing method thereof. The double-spoke column spoke superconducting cavity is characterized by comprising end covers, spoke columns and an outer conductor, wherein the two spoke columns are arranged in the outer conductor, and drift tubes of the two spoke columns are coaxial; a first opening matched with a cleaning observation port of the double-spoke column spoke superconducting cavity is formed in the outer conductor, and the first opening is connected with the cleaning observation port through a first adapter ring; a second opening matched with a coupler coupling port of the double-spoke column spoke superconducting cavity is formed in the outer conductor, and the second opening is connected with the coupler coupling port through a second adapter ring; two ends of the outer conductor are respectively connected with one end cover; and the drift tubes of the spoke columns are coaxial with beam tubes in the centers of the end covers. According to the double-spoke column spoke superconducting cavity, the design of the manufacturing and processing technology of the double-spoke column spoke cavity is solved, and the manufacturing of the double-spoke column spoke cavity applied to the accelerating section of the proton accelerator is successfully realized.

Description

technical field [0001] The invention relates to the technical field of accelerators, in particular to a design of a double-spoke-post-spoke superconducting cavity and a manufacturing method thereof. Background technique [0002] Double spoke cavity (Double spoke cavity) is a commonly used accelerating structure in the accelerating section of proton accelerator. The present invention proposes a double-spoke-post spoke cavity with a frequency of 325 MHz and accelerated particle velocity at β=v / c=0.5 (v is particle velocity, c is light velocity) and its manufacturing process. [0003] The double-spoke-post-spoke cavity with β of 0.5 is a kind of superconducting acceleration structure suitable for the energy segment acceleration module of the spallation neutron source. Such as figure 1 shown. [0004] According to the number of spoke posts, the spoke chambers are divided into single-spoke-post spoke chambers, double-spoke-post spoke chambers and multi-spoke-post spoke chamber...

AI Technical Summary

Problems solved by technology

[0005] Due to the large physical size of the spoke cavity of the double spoke post (the diameter of the vacuum body is 560mm, and the length is 729mm), and the structure is complex

Therefore, in the manufacturing process of the double-spoke-post spoke cavity, there are difficulties such as difficult part forming, high machining precision, high welding quality, and no manufacturing experience.

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