Rick S, Peter K, Matt H

More detailed report to come, but quickly... after a lot of long long days, I think we can mostly claim success that we think we have the ISS array aligned with ~50mV DC readouts from all 8 phtoodiodes (more detailed alog will hopefully have a description of the  temporary setup had to get this). We still dont see anything on the QPD though. Maybe as not enough power. Will have one last look tomorrow.

So just some tidy up work now to do on it before claim success (ie lid back on, put baffle back in place (which will need laser light for). I would say 30mins (lets say an hour to be safe :-)). Just to tired to finish it tonight.

Also before we attempt the LLO one I think we need a few modifications/solutions to make it a more efficient process. But we/I have learned alot from this one.

Start of session in cleanroom:

All zero

Start of session in chamber:

0.3um...10 counts

remainder zero

End of session in chamber 6 hours later

0.3um..0 counts

remainder...zero

Earlier today I updated it and added a GPS time channel for testing. I just updated it again.

There are 34 unmonitored TCS channels. (see attached)

ISI ST1 and ST2 ACT tripped at 1088286405 GPS. (Jul 01 2014 14:46:29 PDT)
HPI ACT tripped at 1088286647 GPS. (Jul 01 2014 14:50:31 PDT)

Plots are attached.

08:34 Karen at end Y
08:48 Peter to H1 PSL enclosure to check problem with laser
08:48 Jeff B. to HAM 2,3,4 to work on contamination control
08:49 Filiberto to end Y to work on TCS cabling
09:11 Cyrus restarting the EPICS gateway for the vacuum subnet
09:16 Jeff B. out of the LVEA
09:21 alarm for end Y rollup door open
09:31 Karen leaving end Y
09:43 Cyrus done with EPICS gateway restarts
10:06 Dave restarting the IOP and user models for SUS and SEI BSC 1,2,3 to complete software WD updates
10:32 Dave done with model restarts
10:32 Justin transitioned the LVEA to laser safe
10:35 Call from Praxair driver to inform delivery is ~15 min away
10:51 Dave, Jim B. to end X to install HWS computer
11:08 Rick to join Matt and Peter in the H1 PSL enclosure to help address a water leak on the laser table
11:55 Jeff B. and Andres out of the LVEA
11:55 Dave and Jim B. back to end X
12:12 Jim B. back from end X
13:05 Matt to HAM2 to start ISS alignment work
13:57 Jeff B. and Andres to HAM 4,5 to work on contamination control
14:09 Cyrus to end X to install a patch panel and check the HWS computer
15:19 Cyrus done at end X, going to install patch panel at end Y
15:19 Justin transitioning the LVEA South and East bay to laser hazard
15:33 Jeff B. and Andres done in LVEA
15:39 Arnaud starting measurements on SUS ITMX

I received the patch panels required to finish the wiring at EX and EY, so I installed them this afternoon.  I had to briefly disconnect the vacuum rack switch at EX to re-route a fiber that was in the way.  This closes out WP 4684.

will be running overnight

This morning I changed the configuration of the EPICS gateway processes that serve the vacuum subnet IOC PVs to limit the allowed PVs to those actually available from the vacuum IOCs.  This is to eliminate the additional broadcast traffic that occurs when the gateway searches for PVs that do not exist in this subnet (and it does this a lot, each time a client broadcasts for a non-vacuum channel).  Searches are now limited to channels starting with "HVE-" or "H0:FMC-" (this last should probably be constrained further, but this is a good start).  Attached is a plot of the reduction in broadcast traffic as a result; the 'mini-peaks' that still occur near the start of the hour are probably from the hourly burt backup for H0:FMC channels not in the vacuum subnet.

J. Kissel, A. Pele

Given the confusion of installation status vs what guardians are running what and why, I've brought all corner station guardians down to their equivalent SAFE or OFFLINE or UNLOCKED or DOWN state, and then paused them. These should not be unpaused again until we close up a given chamber and the install is complete. 

ETMX and EMTY should still be maintained under guardian control, and operators should make sure that they are fully isolated / aligned at all times until further notice.

The latest results from the X1 QUAD08 tfs -after Joe Odel/Jeff B/Andres R reworked on the quad to replace the top mass blades and rebalance the masses- are attached below and compared with the previous measurements from last week. This work was initiated to resolve the 10% discrepancy seen between the measured and modeled 2nd pitch mode frequency (1.32Hz) cf 5th page of 1st attachment. Though, the comparison shows this mode has stayed unchanged, except for a new pitch to vertical coupling at 2.25Hz.

PeterK, MattH, ChrisM, RickS

This morning, Peter found that the Crystal Chiller would not restart (apparently the laser has been down since last Friday).

He went to the Laser Area Enclosure and found a puddle on the floor near the High Power Oscillator.

Removing the HPO covers revealed that a small (~3/16" ID) hose had separated and was leaking.

Hose was replaced, water mopped up, chiller restarted, water level topped off.

More details and photos to follow.

model restarts logged for Mon 30/Jun/2014
2014_06_30 10:45 h1iopsush2a
2014_06_30 10:46 h1suspr3
2014_06_30 10:46 h1susprm
2014_06_30 10:48 h1susmc1
2014_06_30 10:48 h1susmc3
2014_06_30 10:49 h1iopsush34
2014_06_30 10:50 h1suspr2
2014_06_30 10:50 h1sussr2
2014_06_30 10:52 h1iopsush56
2014_06_30 10:52 h1susmc2
2014_06_30 10:54 h1susomc
2014_06_30 10:54 h1sussr3
2014_06_30 10:54 h1sussrm
2014_06_30 10:56 h1hpiham1
2014_06_30 10:56 h1hpiham6
2014_06_30 10:56 h1iopseih16
2014_06_30 10:56 h1isiham6
2014_06_30 10:58 h1iopseih23
2014_06_30 10:59 h1isiham2
2014_06_30 10:59 h1isiham3
2014_06_30 11:01 h1hpiham2
2014_06_30 11:01 h1hpiham3
2014_06_30 11:02 h1iopseih45
2014_06_30 11:04 h1hpiham5
2014_06_30 11:04 h1isiham4
2014_06_30 11:04 h1isiham5
2014_06_30 11:06 h1hpiham4

no unexpected restarts. Install of SWWD on HAMs

Jeff, Patrick, Dave.

I installed the latest IOP SWWD models on the following systems: h1iopsusb123, h1iopseib1, h1iopseib2, h1iopseib3. All SUS and SEI models on these front ends were stopped (using guardian to first put them into a safe state) and then restarted.

This completes the SWWD FE install, I am now cleaning up the MEDM screens.

In the corner of the "cleaning area" adjacent to the door to the LVEA there is now a fully stocked Contamination Control (CC) Area and 3x fully stocked Contamination Control Portable Kits.

These are available for all to use. In fact if you have an open chamber there is no reason you shouldn't have a Contamination Control Portable Kits. How do I know what a Contamination Control Portable Kits looks like? Don't worry they are the BIG PINK Really Useful boxes, and as such pretty noticeable. See attached pdf  for picutres of the portable kits and the main CC area.

Further details can be found here LIGO-T1400310: Contamination Control Kits - Parts list, poster and kiting plan and use. At this DCC link you will find slides descirbing the area, a poster of all of the items included in the kits, a correspoding parts list, labels and a chamber entrance guide.

Please see Jeff Bartlett if you have any questions and liaise with Jeff for re-stocking of the portable kits and areas.

Calum Torrie

Last week at LHO (Travis, Betsy, Kate and Calum) tested the TM Green Lantern, LIGO-D1400060-v4, on the ITM in the WBSC3 chamber. The Test Mass (TM) Green Lantern gives a system which allows us to: -

i) Illuminate the optic (in chamber) in a consistent manner at grazing angle to face of optic. (The TM Green Lantern can be installed while first contact (FC) in place. In addition the FC can be removed while TM Green Lantern is in place.)

ii) Highlight dust on the surface of the optic cf. previous methods of illumination (flashlight) which couldn't operate at grazing angle. As such the previous methods illuminatated substrate defects instead of dust on the surface.

iii) Image the dust on the optic (as a result of the effective illumination).

iv) See (and image) the effectiveness of the FC on a dusty optic. (This has not yet been tested.)

The TM Green Lantern is now on site at LHO (class B) under Betsy's ownership. See attached image below.

Calum Torrie (and team listed above).

After this mornings boots (just happened, see more from Dave I suspect shortly), I see that the guardians for all of the SUSes come back in EXEC mode.  THey were previously set to PAUSE or other state.  Why does it reset to EXEC after boots?

Joe and Andres finished adjusting QUAD08 so I started a round of TFs on both chains at 12:52. Order is undamped M0, R0, then damped M0 and R0.