Attached are plots of dust counts > .3 microns and > .5 microns in particles per cubic foot from approximately 6 PM Nov. 19 to 6 PM Nov. 20. Also attached are plots of the modes to show when they were running/acquiring data.

The plots of counts for the LVEA are missing. There were errors trying to plot them. They were not running for a time yesterday, (the power was unplugged, they probably glitched, and I didn't check for a while to see if they had come back). When they were being rebooted the channels for the calibrated counts were '-nan'. The edcu probably can not record this.

Attached are plots of dust counts > .3 microns and > .5 microns in particles per cubic foot from approximately 6 PM Nov. 18 to 6 PM Nov. 19. Also attached are plots of the modes to show when they were running/acquiring data.

- Keita, Kiwamu, Cheryl


Mode Cleaner:
The beam is centered as it comes through MC1 and centered on MC2.  We were able to center the beam on MC3 using the alignment sliders on MC2.  The beam made it back around to MC1 and is separated from the input beam by about 1cm.  Then it was time to go home.

The alignment was made using irises placed on HAM2 and HAM3 according to the dimensions of alignment tools that Luke made.

One thing we ran into was that one OSEM on MC2 was basically railed, so the watchdog kept tripping.  When MC2 tripped, it moved mostly in yaw which suggests it might be bumping into an EQ stop.


Other work in HAM2:
The beam from the PSL had to be adjusted from inside the PSL, because the centering on the upper periscope mirror was off.  After centering on the upper periscope mirror, the periscope had to be rotated to align the beam to the lower periscope mirror.  The rotation was maybe 1-2 degrees.  The position and angle of AROM RH1 and ROM RH1 were adjusted.  The clamp on ROM RH1 was moved 180 degrees, after seeing that the screw in the clamp was at the far end of the slot, and after finding available space on the top level HAM2 layout drawing.

(Margot P, Gerardo M)

Both primary prisms were finally removed from PR3-01, the adventure started on Wednesday, 11/14/2012.  After roughly 32 hours of soaking (in acetone, a very rare commodity around LHO lately), both primary prisms are off.

The only secondary prism was removed on Thursday, within 9 hours of soaking.

PR3-01 is now ready for its prisms to be glued.

Transferred wall target 501 elevation to new location for better line of sight for the autolevel. I named it 501B
I mounted a scale vertical next to 501B (501B = -26.9mm below Z0 at BSC2, beam tube centerline) and centered the scales 300mm line with the new wall target horizontal line.
I set the autolevel zero on the vertical scale at 500mm (200mm above 501B)
Panning over to BSC2 to the elevation height gage, the scale mounted to the precision rod which Jim W. held against the ISI optical table surface, the autolevel zero read 244.0mm near to the south side of the table.
Note: the distance down from the ISI table requirement is 1661.7mm to the beam tube centerline. So height gage length = 1488.6mm [1244.6mm (49.0") + 244mm on scale = 1488.6mm] + 200 on wall target + -26.9 = 1661.7mm 

Results:

HEIGHT: AVERAGE FROM SCALE 243.45mm (244mm = PERFECT ELEVATION)REQUIREMENT +/- 1.0mm FOR BEAM CENTERLINE so the closer the better (<1.0mm ?)

LEVEL REQUIREMENTS: ACCURACY REQUIREMENT:+/- 100urads (0.1mm DIFFERENTIAL HEIGHT) 

SCALE READINGS:
SE CORNER: 243.0 RAISE UP 1.0mm 
SW CORNER: 243.0 RAISE UP 1.0mm
NE CORNER: 243.6 RAISE UP 0.4mm
NW CORNER: 244.2 LOWER DN 0.2mm

WP#3574

Greg, Dan, Dave.

LDAS upgraded the QFS writer for the H2DAQ primary system (h2ldasgw0 machine) to Solaris11.0 this afternoon. I have just remounted this file system on h2fw0 and h2nds0. The h2fw0 is writing frames to the QFS file system.

A bad 2GB mem DIMM was found in h2ldasgw0, this was replaced with a spare. Also, one of the fibre channel cards is showing a fault and we are running on the second card.

WP#3571

The SUS and ISI models to support BSC1 install work were started today. These were non-standard installs due to the following constraints:

• all Dolphin IPC was removed from the new models, we have hit the 64 channel limit imposed by RCG2.5.1
• no new channels were added to H1 DAQ, we have maxed out the DC and NDS memory

Both of these limitations are temporary. When we upgrade to RCG2.6 the IPC limit will be raised. Tomorrow I will receive more memory for the H1DAQ (most probably wont install till next Tuesday).

I created IOP models for the SUS and SEI BSC1 frontends (h1susb123 and h1seib1). These were copies of the H2 equivalents minus the Dolphin IPC.

I copied H1SUSETMY model to become H1SUSITMY. The appropriate DCUID/computer changes were made and all Dolphin IPC was removed.

I copied the H1ISIETMY model to become H1ISIITMY. Again DCUID was changed and Dolphin IPC was removed. We had some confusion about the ADC distribution between HEPI and ISI. The models we have been using give ISI the first three ADCs and HEPI the fourth. Drawings indicate the opposite, HEPI getting the first ADC and ISI the last three. We will work on resolving this with team SEI.

As stated earlier, no H1DAQ changes were made. None of the BSC1 channels are being recorded by the DAQ.

Remotely; will be finished by ~5:30p, regardless of whether I'm actually done or not!

(Doug, Jason)
We took some quick measurements of the BS on TS2 to determine its postion in order to help resolve the interference between the strut mounting and the trim masses locations verses those at LLO.
Distance;
We measured to H1 BS position in relation to TS2-18 monument back  sighting to TS2-25 monument.
The required distance is 3734.9mm +/-3.0mm from the TS2-18 monument to the AR side of the optic with the glass mass installed. however, the metal dummy mass was installed for this measurement.
Note: the glass mass is 60.0mm+/-.0.5 thick verses 57.09mm +/- 0.5mm. So to adjust for the difference the distance measurement is shorter by 1.46mm (60.0 - 57.09 = 2.91/2 =1.46mm).
Measured distance was total station EDM to corner cube = 3694mm; corner cube to BS AR face = 49.4mm=> 3743.4mm => - 1.46mm correction for the dummy mass = 3742.mm total = 7.04mm error (long)

Translation:
Total Station set over the TS2-18 monument total station pointing at 45deg, 6min, 17 sec (perpendicular to AR)
Measured angle to the left edge of structure frame = 41deg,29min, 53sec. (3deg 37min,24sec from centerline)
Measured angle to the right edge of structure frame =48deg, 42min,54sec (3deg 36min 37sec from centerline).
Note: for calculation purposes needing the distance to the structure face where the edge measurement were taken we added: 3694mm (TS - CC) + 10mm (reference plain to CC mnt) + 4.90mm (mount thickness) =3708.9mm
Results: tan[3.6067-3.6103]/2 * 3708.9 =-0.1mm (right) (requirement is +/- 1.0mm

The 7.04mm is not the whole story I don't think
We should revisit templates? Changes in rev number of templates? Same version used in LLO?

Yesterday I swapped the dust monitor in the optics lab labeled 'N', which was intermittently giving calibration alarms, for the one labeled 'U'.

First Contact has been removed from the previously troublesome HR side of the MC2 optic.  The optic has been released and is now fully suspended. 

Cheryl notified me of a high temp alarm for the Y-mid supply ~74F return ~78F -> I confirmed that the chilled water circulating pump was running and noted 20psi was indicated at the pump inlet.  There were no alarms on the chiller control panel and the the display showed "Auto" and "Local".  The compressor did not run while I was present.  I walked through the building and the temp seemed "normal" i.e., not noticeably warm.  

The ambient temp outside is unseasonably warm today.  Neither Ski nor John are here today and I am not privy on the current FMCS settings etc. so, I'll not jump to rock the boat unless the building temperature rises noticeably.

With SEI continuing work on BSC1, I had the afternoon free to get a jump start on HAM3 work that Cheryl will be doing tomorrow.  The optic was locked and (after swapping controllers on the nitrogen due to non-functionality), I began pulling First Contact.  The AR side of the optic came off with no problems.  However, moving to the HR side, I noticed as I began pulling the PEEK tab that it had not be FC'd all the way to the edge of the FC area (about 5mm from the edge in fact).  After pulling hard enough to rip a few strands of the PEEK with no success on pulling down the FC, I resorted to applying more FC to the tab such that it is connected at the edge.  I'll try again in the morning.  Current state: optic is locked, AR is naked, HR is drying.  Side note: Before beginning, I noticed that SEI had 'testing in progress' signs posted on the chamber.  After consulting with the operator (Cheryl), attempting to contact Hugo by phone, talking to Vincent, checking the aLog, and physically checking that the ISI was locked down myself, it was decided that the signs were false and that I could work in the chamber.  Apologies if I did interrupt any measurements.

In the past week I have powered up an IFR 2023A signal generator which has been in the C4 remote rack.

This one will be temporarily used as a 9 MHz RF seed source for the interferometer sensing and control (ISC) until we get a cool crystal oscillator.

SInce the 2023A needed an AC power, I laid down a long yellow power cord from wall to the C4 rack. Although this cord will be gone in some future, please be aware of it.

- - Current settings:

 Carrier freq = 9099471 Hz

 RF level = 10 dBm

 Modulations = OFF

 no SYNC

I have filled out H1 SUS ETMY's new infrastructure, including
(1) Filling in the ISI to SUS WIT and SUS to ISI OFFLOAD paths, installed as was described for H1 SUS PR2 in LHO aLOG 4553. Nothing new -- same exact filters -- just using the H2 SUS ETMY (yes, H2 -- the SUS hasn't moved yet) matrices from
/opt/rtcds/userapps/release/isc/common/projections/ISI2SUS_projection_file.mat

(2) Installing the OPTICALIGN alignment offset calibration gain, as described in LHO aLOG 4563. Here, for this and all QUADs, the gain is

OPTICALIGN GAIN [cts/urad] = ( DAC [V/ct] * Coil Driver [A/V] * Coil/Magnet [N/A] * HSTS M1 to M3 [rad/N.m] * 1e9 [nrad/rad] )^-1
                           = ( (20/2^18)  * 0.009943          * 1.694             * 0.033514 (for Pitch)    * 1e9            )^-1
                           = 0.023219 [cts/nrad] for Pitch

                           = ( (20/2^18)  * 0.009943          * 1.694             * 0.015055 (for Pitch)    * 1e9            )^-1
                           = 0.051689 [cts/nrad] for Yaw

Note that I've gone with nanoradians instead of microradians (as was done for PR2), because the alignment offsets needed to align (at least the H2OAT) were already quite large (~75% of the M0 BOSEM range), so calibrating this gain into microradians (or any gain larger than 1, really) would have saturated the DAC. This provides for annoying large EPICS values, (retaining the -3027 and +5405 [ct] offsets needed for the H2OAT, means that these offsets are 58562 and 232783 [nrad]), but I think we can deal. I still need to adjust the OPTICALIGN screen to account for this difference (make the sliders have bigger default range and step size, as well as changing the legend to match).

(3) With further quantitative assessment pending, I've installed Rana's 2k to 16k anti-imaging filter in the 

L3_ISCINF_P
L3_ISCINF_Y

filter banks, in order to filter any imaging noise that arises from the inter-process-communication between the ASC model (running at 2k) and the SUS model (running at 16k). I attach a bode plot of the filter as installed (again, identical to Rana's).