Mitchell, Robert

Mitchell and I completed our baffling work on HAM3 on Thursday. This included installing and aligning baffles on the +X and -X sides of HAM3 and baffle extensitons of the PR2 scraper baffle. In addition, we fixed a retroreflection of light scattered from the PRM by an optic on the POP path (90193) and we "baffled" two of the SPI baffle bracket ends that were retroreflecting light to the BS (90787). The figure shows "before" and "after" these two fixes. Alignment was checked with beamspot photos from PRM, PR3, MC1 and 2 and BBS.  I also checked the baffling of the CRS, and I found no significant problems. I have examined the photos, but most of the figures are not finished and will have to be in a subsequent log.