Optimization of BCP Processing of Elliptical Nb SRF Cavities

C. Boffo[1], C. Cooper[1], G. Galasso[2], and A. Rowe[1]
[1] FNAL, Batavia, IL 60510, U.S.A.
[2] Università degli Studi di Udine

Buffer chemical polishing is a cheap, simple and effective processing technique for single grain high gradient and polycrystalline lower gradient cavities.

This paper describes the thermal-fluid finite element model adopted to simulate the process, the experimental flow visualization tests performed to verify the simulation and a novel device fabricated to solve the problem.