Reports until 15:59, Tuesday 17 December 2019
H1 IOO (IOO, PSL)
cheryl.vorvick@LIGO.ORG - posted 15:59, Tuesday 17 December 2019 (53950)
two beam blocks added to the PSL

The DBB, which is not currently on the PSL, was blocking some stray light, so a black metal panel was added to catch the llight instead.  A reflection from a PD has shifted, and a razor blade dump was added to catch some light that was hitting the edge of a lens, where the beam is dumped on the lens mount (IO EOM pickoff).   Image attached is of the new razor blade beam dump.

Images attached to this report