Reports until 13:47, Thursday 04 January 2018
LHO General
thomas.shaffer@LIGO.ORG - posted 13:47, Thursday 04 January 2018 (39991)
Thursday Vent Meeting Minutes

IO and TCS/HWS Tables are back in place and being aligned.

VAC

     CS pump down is around 10-6Torr. ITM TMDS is waiting till we are confident that we will not have to vent again. Vac crew wants to pop off the HAM6 S door to place a stopper so the HAM5 doors can be tested. Monday morning hard closing MY gate valves. Hoping to vent EY early next week. North door will be coming off and the clean room is set up. Will need to isolate Y-beam manifold to leak check, perhaps a few weeks out. Short one ion pump in the CS until it is repaired. Kyle will want to commissioning the neg pumps this month, which will be climbing on chambers and running pumps.

SQZ

    Cabling is continuing, what is here is installed but more to come. VIP is still waiting for the OPO and a few other parts before further progress can continue. The slow controls testing in the SQZr Bay for the table can start. Siskyou mounts being built in the Opt Lab.

COMM

    IMC locking this week. OM alignment, DRMI, and peak down the arm coming up in the next week or two.

SUS

    Jeff K has been running transfer functions on the vented sus and checking for rubbing and other issues.

CDS

    Security patch needed, this will mean that all control room work stations and many of the CDS machines will need reboots. Tuesday all of the "big" machines will be rebooted, this will take some time, expect much of the day. H1IOPLSC has been glitching lately, could be caused by work around the machine but CDS will be looking into it. Restarting the models has solved the issue in the past, but still under investigation.

SEI

    EY HEPI locked up. EX HEPI is still operational and there will be some testing and filter maintenance. Been relieving HEPI biases, this will relieve harsh trips and hopefully have fewer trips.

TCS

    Seal on one of the TCS Y chiller pumps failed, spare is being hooked up. This was the same one that we have been having leaking issues with previously, could have been the issue (or part of). More TCS maintenance will happen during PSL upgrade.

 

Please take some time to go through the LVEA and put stuff away. It's nobody's stuff, which means it's everybody's stuff