Improvement of the Assembly between Cavity Flanges and the BCP Facility at IMP

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The Buffered Chemical Polishing(BCP),consisting of one volume of 40%HF,one volume of 65%HNO3 and two volumes of 85%H3PO4,has been considered as a popular method for etching the inner surfaces of niobium cavities after its fabrication,especially for lowβ(β
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