Andres R. & Jeff B.

   We reglued the second magnet broken off the Intermediate Mass (the Lower Left). There were no problems encountered during the repair. We will remove the jig after 24 hours. If the bond is good, we will remount and align the BOSEMs and put the baffle (mover for access to the magnets) back into its position for ISI balance work. 

   Both broken magnets were removed from the chamber.


Particle Counts

Before Work: 
   Cleanroom Cover on: 0.3 = 0, 0.5 = 0, 1.0 = 0
   In Chamber Cover on: 0.3 = 0, 0.5 = 0, 1.0 = 0

During work
   In chamber: 0.3 = 17, 0.5 = 10, 1.0 = 0

After Work:
   Cleanroom Cover on: 0.3 = 0, 0.5 = 0, 1.0 = 0
   In Chamber Cover on: 03. =0, 0.5 = 0, 1.0 = 0  

Andres and Jeff to HAM5

Travis and Betsy to BSC1

Patrick ConLOG work

Arnaud working at EX with Gerardo

Hugh to work on BSC3

Cyrus working on script0

Hugh working at HAM4

eth0 on script0 was running at 100/Full instead of 1000/Full, so a number of things were likely taking longer to run on it (most notably the daily pull of the aLog and SVN backups).  I un/replugged it to get it to renegotiate at 1000/Full, and restarted the screenshot processes to ensure that the web pages will stay current.

The adapter spool at GV 5 has been removed and the hard cover with the custom slots for IAS placed on the Y arm tube.

Apollo Scott, HughR, GregG, JimW

The 3rd 3IFO BSC-ISI went into the can this morning, and is sitting in the SB garage waiting for transfer to the LVEA. No problems, we were done before it got too hot by 11. After Scott helped me flip and move the first plate for the 5th, and final, ISI onto the test-stand. Unit #4 is on the other test-stand and awaiting some parts from clean and bake, before we can start testing.

I went into ITMX to rebalance this afternoon. Largely uneventful, all I had to remove was optical table ballast that compensated for fiber-guards missing from the wire-hang, and everything went right to where it belonged. The ISI is now re-locked, and SUS's optic covers are re-installed. ITMY won't be so easy, because it is missing the compensating ballast. When we re-balance, it will have to be done by removing weight from the sides of stage 2. I would prefer we did that before we jammed the ACB in there, if at all possible.

After the alignment of the ITMX, I failed to do this to capture the 70urad yaw we are holding.  I was checking for tilts caused by the ACB swing out and notice some large position shifts wrt free hang locations.  There must have been a reboot/burtrestore ~ 1 July.  The ACB being swung out has tilted HEPI ~5urad RX an ~20urad RY.  This should not impact our balance but I can hold it with HEPI.  I set the location targets to the 70urad rz and these tilts and the otherwise free hang position.

OK so remember the safe.snap!

I placed the IR oz optics fiber coupled laser on ISCEX, with a colimator and two steering mirrors.  

When I first got there the green QPD cenering servos were not working, it seems that the matrix elements changed in early june so I did a burt restore to June 1st.  The servos worked fine after that.  

I only saw one green beam in the IR trans path at the PD this time, this is different from what I saw in May (alog 12161).  I aligned the IR laser along the path of the green light coming out of the chamber using the mirrors I had added to the table, and saw a retroreflected beam coming back out of the chamber.  This beam is somewhat large.  

I'm done using the laser at end X, and have returned the key to the control room.  If anyone wants to transition to laser safe while preparing for the vent, that's fine. 

Dan, Jim, Dave

Dan found a possible memory issue with h1ldasgw0. He forced a system core dump both in the bad and good states for follow up with Oracle. He then power cycled h1ldasgw0 and we restarted h1fw0 daqd process to see if a power cycle recovery differs from reboot.

added 164 channels
516 channels are unmonitored (see attached)

ongoing repairs to SR3 magnets

ITMX to be unlocked, rebalanced
ACB alignment needs to be checked

end X: (in laser hazard)
cleaning, preparations for pulling door
optical lever work
lightweight modifications to TMS

Y manifold:
first cleaning ongoing
spool to be removed after second cleaning today

electronics:
pulling AA chassis to send to LLO
TCS chassis fix

no safety meeting

model restarts logged for Tue 08/Jul/2014
2014_07_08 10:35 h1pemcs
2014_07_08 10:40 h1pemex
2014_07_08 10:48 h1pemey
2014_07_08 10:56 h1pemey
2014_07_08 12:15 h1pemmx
2014_07_08 12:16 h1pemmx
2014_07_08 12:18 h1pemmy
2014_07_08 12:23 h1broadcast0
2014_07_08 12:23 h1dc0
2014_07_08 12:23 h1fw0
2014_07_08 12:23 h1fw1
2014_07_08 12:23 h1nds0
2014_07_08 12:23 h1nds1
2014_07_08 12:56 h1asc
2014_07_08 12:58 h1asc
2014_07_08 13:01 h1iscex
2014_07_08 13:30 h1iscey
2014_07_08 13:35 h1iscey
2014_07_08 13:52 h1iscex
2014_07_08 13:53 h1asc
2014_07_08 13:53 h1iscey
2014_07_08 14:53 h1asc
2014_07_08 14:55 h1iscex
2014_07_08 14:55 h1iscey
2014_07_08 16:06 h1odcmaster
2014_07_08 16:29 h1ascimc
2014_07_08 16:55 h1ascimc
2014_07_08 17:45 h1dc0
2014_07_08 17:46 h1broadcast0
2014_07_08 17:46 h1fw0
2014_07_08 17:46 h1fw1
2014_07_08 17:46 h1nds0
2014_07_08 17:46 h1nds1
2014_07_08 17:48 h1pemcs
2014_07_08 21:52 h1fw0
2014_07_08 22:22 h1fw0
2014_07_08 22:28 h1fw0
2014_07_08 22:32 h1fw0
2014_07_08 22:36 h1fw0
2014_07_08 22:54 h1fw0
2014_07_08 22:59 h1fw0
2014_07_08 23:09 h1fw0
2014_07_08 23:21 h1fw0
2014_07_08 23:21 h1fw0
2014_07_08 23:26 h1fw0
2014_07_08 23:33 h1fw0
2014_07_08 23:39 h1fw0
2014_07_08 23:47 h1fw0

All times PDT. Maintenance day, PEM upgrades (dark green), ISC/ODC (teal) and their associated DAQ restarts. h1fw0's file system went unstable again at 21:52PDT

I have just restarted the DAQ to support ISC model changes. I was also getting a 0x2000 DAQ status on h1pemcs, so I restarted that model too to ensure DAQ sync.

work log:

- Broke the link in h1odcmaster.mdl (SVN revision 8350) to ODC_CHAN.mdl (odcmaster does not need the ADC/DAC part in its Guardian block.)
- recompiled and restarted h1odcmaster.mdl.
- changed ODC_CHAN.mdl: broke and terminated last 3 inputs (bit28-30) (termination there for easy compatibility) and added STATEWORD input with NOT statement. This serves bit 28: ADC saturations, bit 29 DAC saturations and bit 30 Excitations (remember: for ODC: 1=OK 0=bad).

- Changes to h1ascimc.mdl: added bit strings for bits 28-30, added ODC_WFS_NOMINAL_GAIN EPICS input (SVN revision 8351)
- Updated IMC_CUST_ODC.adl medm screen to include WFS_NOMINAL_GAIN (SVN revision 8352)

recompiled and restarted h1ascimc
verified that bits 28-30 work (ADC/DAC saturations and EXC)

burt restored h1odcmaster and h1ascimc to 7am
 

In case anyone cares, the HEPI locked position was different (slightly) from the optic (SR2) alignment position to the HWS alignment position.  This is because I wasn't watching the position as I locked it June 23 for the Septum removal; I got lucky though as these are small, likely enough.  You can see these in the trends of the cartesian locations:

dof                       DIFF

x                            20um

y                            50um

z                            80um

rx                           10urad

ry                           0urad

rz                           10urad

After a number of days where the lid was left off the laser, I looked into the high power oscillator this morning.  There was a small pool of water near the post that holds up the cooling hoses and flow sensors.  There was no sign of a leak from the flow sensor fitting that was repaired last week.  I wiped up the puddle of water (the volume of which was maybe a teaspoon).  I suspect that this was water that was originally between the top of the base plate and the bottom of the post that had oozed out.  I left a clean wipe there to wick up the remaining water, if any.

I inspected the optical surfaces, the output coupler, laser rods, and 4f lenses.  Forgot to examine the 45 degree turning mirrors.  I will do that at the next available opportunity.  The lid was replaced onto the laser.

The ante room and laser room were left in science mode, with respect to the air conditioning, fans and make up air.  The lights were switched off.

Andres R. & Jeff B.

   We reglued the UR magnet on the SR3 Intermediate Mass this morning. We will check the bond tomorrow. When all is well with the repair of the UR magnet, we will replace the LL magnet, which was also knocked off. Both missing magnets have been found and are not in or on the suspension. 

   To use the magnet repair jig we had to remove the baffle located behind SR3. Its location was marked. The baffle will be returned to its installed position when the magnet repairs are completed.     

[Stefan, Kiwamu]

As part of the CDS activity today, we placed new eight RFM senders in h1asc.mdl. It complied fine and I restarted the model. The ASC frontend was then manually burtrestored to 8:00AM this morning. The SVN revision is now at 8346.

This update had been already applied to the Livingston model (i.e. l1asc.mdl) but we had not until today for some reason. Anyway this update was needed not only for the ASC model but also for making the h1iscex(y) model(s) identical to that of Livingston as the iscex(y) were supposed to acquire these RFM channels. After the restart, we checked a couple of the new channels to see if they successfully send signals to the end station. We checked QPD1_PIT and QPD1_YAW of iscex and seemed fine. We didn't check iscey. We didn't edit the ASC master model at all.

The name of the RFM blocks:

• H1:ASC_ISCE(X|Y)_QPD(1|2)_(PIT|YAW)