[Jeff, Daniel]

We cleaned the top and inside of a 10 in vacuum cube that is slated to hold the power recycling optics for the power recycling cavity. We used the TWTX8410 (Pre-wetted Vectra Wipes (Alpha Red Wet)) for the knife edge and inside of the vacuum chamber. While opening this bag, we seemed to break the resealing mechanism, so we wrapped the bag in UHV foil and put it in an anti-static bag. We put in a new copper gasket since the old one was very dirty. We inspected the bottom of the top 10" flange, and it was clean enough to put back on the cube. The next step is the tip over the cube and replace the bottom 10" flange with the one I machined (with tapped holes).