After many changes to the pumping configuration we appear to be on a downward curve again. During the last 20 days of this pumpdown we have valved in main ion pumps, pumped and leak tested numerous annuli, valved in and out the main turbo and leak tester, changed out a few annulus ion pumps, and cycled the beam tube valves.

So far Kyle has not seen a significant response to helium testing. It is possible that we are now seeing the outgassing of all the assemblies in the vertex volume - 1xBSC, 1xITM, 3xHAM