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Modeling And Simulation Of The Chemical Etching Process In Niobium Cavities, Qin Xue
Modeling And Simulation Of The Chemical Etching Process In Niobium Cavities, Qin Xue
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Niobium Cavities are important parts of the integrated NC/SC high-power linear accelerator (linac) that can accelerate over 100 mA of protons to several GeV. Surface finish of the niobium cavity plays an important role of achieving the best performance of niobium cavity. The chemical etching techniques have been widely used.
Chemical etching of the inner surface of the cavity is achieved by circulating acid through it. The acid interacts with the surface and eliminates imperfections. During the etching process, a pipe with baffles is inserted within the cavity to direct the flow along the surfaces.
A 2-D, axisymmetric, steady state, …