Abstract
The technology of high vacuum brazing for fabrication of S-Band RF coupling cell unit is given. The brazing in high vacuum conditions provides a vacuum-tight and more precise connection with the use of special high-purity fillers. Based on the material and design of the part, as well as the shape of the filler, it is necessary to develop filler channels and gaps that will be of the most optimal shape and size. High-purity silver-copper alloys of the BV Ag-30, BV Ag-8, and BV Ag-29 brands were used as fillers. Rectangular flanges for brazing with waveguides are made of GlidCop AL-25, and the CF flange for the beamline tube is made of stainless steel. Brazing processes were carried out under high vacuum conditions in an upgraded precision vacuum brazing system, which is developed at CANDLE Synchrotron Research Institute. Using the recorded data and experimental results, optimal modes for fine-advancement of vacuum brazing processes for fabrication of S-Band RF coupling cell unit are developed.
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