Preparation method of copper-niobium composite radio frequency superconducting resonant cavity
A technology of superconducting resonant cavity and superconducting cavity, which is applied in the direction of waveguide devices, accelerators, circuits, etc., can solve the problems of superconducting cavity purity control and difficult control of weld bead recombination, and achieve good mechanical strength and high bonding strength Effect
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[0042] Taking a spoke (Spoke) superconducting cavity with a frequency of 325 MHz as an example, the preparation method of the copper-niobium composite superconducting cavity involved in the present invention is described. Specific steps are as follows:
[0043] 1) Development of the Spoke pure niobium superconducting cavity: process a Spoke superconducting cavity with a wall thickness of 3 mm and a frequency of 325 MHz according to the standard processing specification for pure niobium superconducting cavity, as shown in the schematic diagram figure 1 shown;
[0044]2) Surface treatment inside and outside the Spoke pure niobium superconducting cavity: 1) Mechanical polishing; 2) Cleaning with alcohol, acetone and other cleaning liquids; 3) 50-minute ultrasonic ultrapure water cleaning to remove the grease on the surface of the material, wherein the resistivity during the ultrasonic cleaning process is The temperature of the 18.2MΩ*cm ultrapure water and cleaning agent mixture...
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