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.

1405--1411:  HEPI was locked so I unlocked it.  1427--1438 C3 Covers opened, purge opened.

1440--1610: The ISI was locked and it too was then unlocked.  The balance wasn't too bad but it could be made better so it was.  Haven't exactly tallied the totals but the weight change was small, just moved.  Lock/Unlock change is within spec except H2 with 1700 counds(1600 spec.)

1614: Chamber covered, purge choked down.

ISI left Unlocked, HEPI left Unlocked.

Installed a dust monitor (Location 13) in the cleanroom covering the Y-Arm spool piece. This dust monitor will remain in place until the spool is reinstalled after the alignment of ITM-Y 

- 8:30 am, Apollo crew prep work to move cleanroom over GV5 and removal of spool piece.
- 8:35 am, Peter K. to CS VEA H1-PSL, install lid on HPO.
- 8:39 am, Aaron to Y-End VEA, Chassis installation.
- 9:15 am, Kyle to CS VEA GV7, pump annulus for gate valve.  Then to GV5 to vent annulus for gate valve.
- 9:15 am, Jeff and Andres to CS VEA, HAM5 for SR3 magnet gluing.
- 9:30 am, Thomas and Arnaud to CS VEA, strip ITMY optical lever leaner
- 9:38 am, Peter K done.
- 9:38 am, Hugh to visit both end stations for HEPI work.
- 10:00 am, Betsy to CS VEA, BSC3 for ITMX payload.
- 10:20 am, Jim B from CS CR, update of dataviewer.
- 11:51 am, Betsy, Done with payload work.
- 12:22 pm, Dave B from CS CR, DAC restart.
- 1:12 pm, Karen to Y-End VEA, cleaning work.
- 1:39 pm, Betsy to CS VEA, HAM3 --- start of MC2 adjustment in length.
- 1:49 pm, Hugh to CS VEA, HAM4 work.
- 2:12 pm, Jeff and Andres to CS VEA, dust monitor work.
- 2:19 pm, Karen done with Y-End work.
- 3:00 pm, Apollo crew set cleanroom over GV5.
- 3:55 pm, Andres to CS VEA, stagging of items by HAM4/HAM5 area.

Found and removed the fiber pictured below in one on the 3/8 bolt counter sinks on the HAM5 ISI. No other fiber were found in the chamber. 

   A lighted visual inspection and clean as you go wipe down of the ISI did not show any significant surface contamination.    

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.     

This afternoon, we used a 2mm guage block and HXTS pushers to slide the MC2 structure towards MC1/3 (to make a shorter MC) as per ISC instruction.  We reclamped all of the dog clamps in hope that we did not introduce much yaw error while pushing it.  We'll wait until the MC beam bypass is removed to flash the MC and confirm.

In order to make way for SEI to float and balance the ISI, we attached this full payload to the ITMx QUAD:

- Sleeve

- Sleeve wedges

- Vibration Absorbers

- LS Cross Braces

- Witness plate holder

- Witness optic holder (for 1")

The ACB is in it's swing back state (wedge in place) since we need it that way for test mass cleaning ~next week.  However, SEI may choose to drop it back into place if needed until then.

As well, some of the masses are clamped in the QUAD such that they don't knock much while rebalancing is taking place.

[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)