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Reports until 20:36, Tuesday 16 June 2015
H1 SYS (SUS, VE)
betsy.weaver@LIGO.ORG - posted 20:36, Tuesday 16 June 2015 (19188)
End Station Vent Status

As of COB today, we are on-schedule for the 4 day EX and EY vents.  So far no major surprises or issues.  Further dust monitor data to be posted later.

As per the schedule:

- The ISI's have been locked on both ETMx and ETMy.

- 2 CC witness samples have been pulled from each BSC9 and BSC10.

- The VE port work has finished at ETMy.

- The TMS work has finished at both stations.

- The ETMx debiasing has been completed (removed ~440 uRad of pitch mechanically at the suspension using the optical lever as the monitor.)  Bias is now at zero.  This is where commissioners should start looking for beams in a few weeks.  Yaw bias remains unchanged (and non-zero).

- Local charge measurements taken on ETMx with in-chamber equipment in prep for discharge procedures. 

- ESD feedthru swap has started.  Filiberto and Gerardo have pulled the flange and have it out and ready to reterminate with the new connector.

- Quick P and V TFs of ETMx show healthy suspension - Arnaud launched matlab overnight TFs of SUS-ETMx for further check.

 

First up tomorrow:

- Finish ETMx ESD feedthru work.

- Finish VE port work at ETMy.

- Move equipment to ETMy and Discharge ETMy.

- Close ETMy chamber.

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