Gerardo M., Kyle R.

Today we transported pumps, variable alternating current source transformers and leak detector etc.. to the X-end station Residual Gas Analyzer (RGA), removed the redundant 1 1/2" valve and installed the 60 liter/second turbo molecular pump in its place.  At the next opportunity, we will need to vent the RGA volume and re-flange the RGA as it still has the "factory" fasteners which are inadequate to achieve the desired "metal-to-metal" connection (which has proven to be impervious to bake cycles as far as leaking is concerned).  We will then helium leak test all of the bolted joints and wrap up the assembly with aluminum foil and heat tapes. At that point we will await a five day window of opportunity to run the pumps 24/5 and do a 200C bake of the RGA assembly.  

In summary, the current WP is partially complete and will remain active until completed (dependent upon Interferometer downtime(s))