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SRF2003 Show Abstract

Title Accomplishment of Re-plating ANU LINAC
Type Poster cavity design / fabrication / treatment
Abstract The performance of the twelve split-loop resonators (SLRs) of the ANU LINAC has been substantially improved by re-plated with 96%Pb-4%Sn. The re-plating with Pb-Sn Schlotter MSA solution was initially plagued by the appearance of dendrites on the surface plated.  Reverse-pulse-plating at modest currents eliminated the dendrites.  In addition, a new technique has been demonstrated of mechanically polishing the unsatisfactory PbSn surface and then re-plating, rather than laboriously chemically stripping the old PbSn and hand polishing the Cu substrate. It is enormously easier, faster and does not put at risk the thin cosmetic electron-beam-welds or the solder-repaired welds. An average acceleration field of 3.5 MV/m has been achieved in off-line tests. Twelve SLRs are currently installed and operated in the ANU LINAC.

List of authors...

Principle author first.

Last (Family) Name First Name (Initials only) Affiliation or Organization (abbreviations if possible)
Lobanov N R RSPhSE ANU
Weisser D C RSPhSE ANU

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