This morning, the door crew was at it early and had the doors off of HAM2 (E and W) by 9:30am. Hugh and Jeff B started the entry contamination control, Hugh locked the ISI, and I locked the 4 large SUS (PRM, PR3, MC1, MC3) in order to put the face caps on for protection over the first few days of ISI work. (The optics are the only masses locked, and somewhat lightly in order to just support the addition of the caps on.) WHile there, Hugh and I also removed the 2 MC free-standing arc baffles which are going to be replaced, and the OPLEV 2" mirror/mount which is going to be replaced.
Hugh started the HAM2 ISI damper work mid morning, which is expected to run the next couple of days with Jim.
Since they were all geared up and ahead of schedule, Bubba and crew went ahead and pulled the BSC3 W door in the biergarten.
attached is a striptool trend of dust monitor 300 (BSC3) 0.3um counts while the BSC3 door was removed.
The Y scale dotted lines are 200 and 400 counts, the max number is 435
We also turned off the PR3 OPLEV, hence why that SUM is near zero.
I also unplugged the power supply adapter box for HAM3 Optical Lever Transceiver to get an open power port to power the B&K setup. For pictures of today's work, check out 38716. I attach the two money shots I got here though, 'cause they're great. For future reference, it's Betsy and Hugh in garb.
