J. Kissel, B. Lantz, E. Bonilla, D. Barker
ECR E2400405 
IIET 32526
WP 12459

Using a linear combination of LHO:83724, the google slides in G2402303, and talking to Brian/Edgard who arrived for their week long visit today -- we installed the OSEM estimator infrastructure today on PR3 *and* SR3. 

We've only filled in enough infrastructure to ensure that it's function is entirely OFF.
Hopefully we'll get further this week.

The new channels have been initialized in the safe.snap for PR3 and SR3. 
    /opt/rtcds/userapps/release/sus/h1/burtfiles/
        h1suspr3_down.snap
        h1sussr3_safe.snap

We made edits to Brian / Edgard's work on common library parts,
    /opt/rtcds/userapps/release/sus/common/models
        HLTS_MASTER_W_EST.mdl
        SIXOSEM_T_STAGE_MASTER_W_EST.mdl
medm screens
    /opt/rtcds/userapps/release/sus/common/medm/hxts
        SUS_CUST_HLTS_OVERVIEW_W_EST.adl
    /opt/rtcds/userapps/release/sus/common/medm/estim/
        ESTIMATOR_OVERVIEW.adl
        CONTROL_6.adl
(see attached notes for details).

And then I made edits to
    /opt/rtcds/userapps/release/isi/h1/models/
        h1isiham2.mdl
        h1isiham5.mdl
to add PCIE Dolphin IPC senders to send out the calibrated ISI HAM ST1 GS13s that are pre-projected into the PR3 and SR3 suspension point euler basis, and then modified
    /opt/rtcds/userapps/release/sus/h1/models/
        h1suspr3.mdl
        h1sussr3.mdl
top level models to receive those IPC, and pipe them in to top of the new main libary part, the HLTS_MASTER_W_EST.mdl

Finally, after Dave installed the model changes and restarted the ISIs and HLTSs, we edited the sitemap
    /opt/rtcds/userapps/release/cds/h1/medm/
        SITEMAP.adl
 to use the HLTS_OVERVIEW_W_EST.adl.

Everything file I mention above has been committed to its respective location in the svn.
Screenshots of stuff will come in the comments.

Edgard, Oli

In 83662 it was discussed that the osem compensating filter z:p = 10:0.4 wasn't as accurate as it should be. Jeff worked out that the zero and pole from the satamp are 0.3835 Hz and 10.6103 Hz, respectively, so our compensating filter should be the opposite of that, with a zero at 10.6 Hz and a pole at 0.38 Hz.

Today we updated those filters for PR3 and SR3. They appear in all three stages in the initial OSEMINF filter bank (FM1) (H1:SUS-PR3_M{1,2,3}_OSEMINF_{sensor})  as well as in all three stages of the watchdog bandpass filter bank (FM6) (H1:SUS-PR3_M{1,2,3}_WD_OSEMAC_BANDLIM_{sensor}). So where before those filters there were 10:0.4, they now read 10.6:0.38 and have these updated zero and pole values. We've loaded in the coefficient changes.

I've attached the script that we used to update these filters below. It's an edit of Jeff's script in 80189

WP12459 Prototype Estimator

Jeff K, Brian L, Edgar B, Jonathan H, Erik VR, Dave B

We installed new models for h1isiham2, h1isiham5, h1suspr3 and h1sussr3. DAQ restart was required.

WP12458 New ISI HAM1 Guardian nodes

TJ, Dave B

TJ installed four new guardian nodes, these were added to EDC and a DAQ restart was required.

DAQ Restart

Jonathan H, Dave B.

DAQ was restarted for model changes and EDC additions. Because we are in a vent we elected to do an old-fashioned restart whereby the Trend Writers are not turned off prior to the restart of the EDC in order to maximize the vacuum trend data stream. This does mean that systems following guardian in the edcumaster.txt file will see outliers when using NDS1.

Restart sequence was: 0-leg + EDC, then 1-leg when fw0 had restarted.

In preparation for the new HAM1 ISI and the new PM1 suspension, I've created and started 3 SEI Guardian nodes - ISI_HAM1, SEI_HAM1, ISI_HAM1_BLND. I've also created and started SUS_PM1. These have been added to the Guardian overview screen, and a DAQ restart is immanent. Total node count is now 173.

While prepping the code for the other SEI nodes I noticed that ISI_HAM3 was the only ISI node that was still on common code. The H1 specific versions of the other nodes will redefine a few of the dofs that get paths turned on and off. I spoke with Jim and we decided to bring HAM3 in line with the rest and made a copy of H1 HAM2. Needed to restart this node to pick up the changes since it's a SEI node.

TJ, Sheila, Matt, Andrew (job shadow today), Camilla. WP12433. Table layout D1400241.

Following on from other beam profile work at the end stations 81358, Madi Simmonds models G2500646 and the ideas we had for understanding ETM mode matching better (googledoc), today we took some beam profiles of the EY ALS beam reflected of ETM HR in the HWS path.

We added a 532nm quarter waveplate downstream of the beamspiltter (ALS-M11) and tuned it to maximize the light reflected into the HWS path. This was removed when we were finished and left with Nanoscan beam profile.

We first took some beam profile measurements (photos 1-4) first with the QPD offsets on nominally, and then with the offsets zero'ed (phots 5-9). Unless the beam has been pico-ed (which it may have) the zero offsets should have the beam more centered on the Transmon parabolic mirrors. The beam changed when the offsets were turned off but did not look better/worse, just different. Compare photo 4 (QPD offsets on) and photo 5 (offsets off).

I double checked the positions of PR3 and SR3 before the DAQ restart that's planned for today, SR3 seems to have done a bit of drifting from the LVEA zone4 temperature increasing by ~ 2 degrees. The T cursers denote the power outage. PR3s YAW oplev looks a little different post power outage but its' top mass osems don't really seem to have moved.

Mon Apr 14 10:08:47 2025 INFO: Fill completed in 8min 44secs

FAMIS 31081 (this also serves as a checkup on the PSL following the large power outage early last week)

Generally things are behaving as expected with just a few exceptions. Most notably, both amplifier output powers are ~1W lower than before the outage, likely due to the current being lower on the pump diodes in AMP1 by ~0.1A each. We had set the currents for AMP1 (power supplies 1 and 2) back to pre-outage levels of 8.7A, but perhaps due to rounding issues coming out of Beckhoff (?) the actual current is apparently lower. We may bump these up by another tenth of an amp to see if this brings the output power back up.

PMC transmitted power is lower by ~1W (and noisier), either due to the lower power out of the amplifiers or the misalignment I can clearly see on the PMC REFL camera. I'll plan to try and touch that up, along with RefCav alignment, before the work in the enclosure for the installation of the SPI pickoff starts tomorrow.  Edit: I forgot that the picomotor driver for the PSL is shared with IOT2L and lives on that table which is fully disconnected for vent work.

Morning dry air skid checks, water pump, kobelco, drying towers all nominal.

Dew point measurement at YBM , approx. -44C

Closes FAMIS26372, last checked in alog83723.

Nothing of note on the scopes, everything looks like it did during the last check.

Elenna, Matt, Camilla. Continuing ISC component inspection and prep for re-installation from 83858. 

Elenna, Matt and I continued to first contact the optics in pans 1 and 2:  M7, M11, M12 (new 90/10 BS), M13, M15 (New 50/50 BS), M16, M17, M18. After again inspecting some of those we cleaned yesterday, we decided to re-clean some. Some needed multiple first contacting, they aren't all perfect (there is a 1" long incredibly hard to see line on M15 and a mark in the center of M18 photo that I will ask a second option on), but otherwise we are calling these two pans of optics ready for re-installation. 

For M15, I installed the picomotors that I removed from the right handed mount into a left handed siskiyou mount. I installed the manually adjustable actuators removed from the left handed mount into the right handed mount, this will be stored. Notes on how to do this are attached.

Still to be done: decide if M15 and M18 are okay or need swapping, clean optics in pan 3; inspect periscope mirrors; swap out any glass beamdumps we can. 

Today's activities:

• HAM1 feedthrus were installed according to D1002872-v10.  D6 is completely populated.  D1 was populated with everything except the feedthrus on the 5-way cross.  Those will be added in the next days.  The 3-port adapter (currently on D4 but destined for D3) has completed 1 of 2 feedthru swaps.  
• CP1 RGA is being revisited.

[Betsy, Keita, Camilla, Richard M., Elenna]

After the power outage, we wanted to get some confirmation of PZT pointing out of the PSL. Betsy, Keita and Camilla went in the cleanroom with the IR viewer and indicator cards and took the covers off the IMC refl and trans viewports on HAM2. Keita found the beam out of the IMC REFL viewport, and I adjusted the IMC PZT in pitch and yaw under direction from Keita. I accidentally moved the pitch slider a bit at the beginning due to user error. Then, we took large steps of 1000 or 2000 counts to move the offsets in pitch and yaw.

Start values: pitch: 22721, yaw: 5488

End values: pitch: 21192, yaw: 6488

Then, Betsy found the beam out of the IMC TRANS viewport and Richard marked the beam spot approximately on the outside of the cleanroom curtain with a red sharpie. This is super rough but gives us a general location of the beam. We think this is a good enough pointing recovery to proceed with vent activities.