| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
16927
|
Fri Jun 17 12:05:32 2022 |
Yehonathan | Update | BHD | Comparison of MICH OLTF model with measurement | I should write down what I didn't include
for completeness:
1. AA filters |
|
|
16926
|
Thu Jun 16 19:49:48 2022 |
Cici | Update | General | Using the SR785 | [Deeksha, Cici]
We used a python script to collect
data from the SR785 remotely. The SR785 is |
|
|
16925
|
Thu Jun 16 18:30:07 2022 |
Anchal | Update | SUS | New diagonalized input matrices applied | I used the same fre swing data to diagnolize
input matrices of following optics:
MC1, MC2, MC3 |
|
|
16924
|
Thu Jun 16 18:23:15 2022 |
Paco | Configuration | BHD | Recovering LO beam in BHD DCPDs | [Paco, Yuta]
We recovered the LO beam on the
BHD port. To do this, we first tried reverting |
|
|
16923
|
Thu Jun 16 17:40:15 2022 |
Yehonathan | Update | BHD | Comparison of MICH OLTF model with measurement | I made some progress in modeling MICH loop.
Putting all the LSC and SUS filters
together with the MICH Finesse model I constructed |
|
|
16922
|
Thu Jun 16 15:29:03 2022 |
yuta | Update | PSL | PMC input beam aligned again, IMC | [Paco, Tomislav, Yuta]
Somehow, when we were trying to measure |
|
|
16921
|
Wed Jun 15 17:12:39 2022 |
Cici | Summary | General | Preparation for AUX Loop Characterization | [Deeksha, Cici]
We went to the end Xarm station
and looked at the green laser setup and electronics. |
|
|
16920
|
Wed Jun 15 17:03:17 2022 |
yuta | Update | SUS | ITMY ULCOIL issue solved, loose connection in sat amp box | [Anchal, Yuta]
We fixed the issue of ITMY ULCOIL |
|
|
16919
|
Wed Jun 15 15:45:37 2022 |
yuta | Update | SUS | LO1 LLCOIL now working, it was loose connection | We tracked the issue of LO1 LLCOIL not
actuating LO1, and found that the DB9 cable
from the coil driver to the sat amp was loose. |
|
|
16918
|
Wed Jun 15 15:07:07 2022 |
Koji | Update | SUS | LO2 SUS stuck fixed | I checked the state of the LO2 suspension.
I found that the coil driver Enable
Mon was all red. |
|
|
16917
|
Wed Jun 15 15:03:41 2022 |
Koji | Update | PSL | PMC input beam aligned | The commissioners complained about the
PMC alignment. The PMC input beam was aligned.
It made the transmission improved from 0.72 |
|
|
16916
|
Wed Jun 15 07:26:35 2022 |
JC | Update | VAC | Beginning Pumpdown | [Jordan, JC]
Jordan and I went in to retore
the Vacuum System back to it's original |
|
|
16915
|
Tue Jun 14 20:57:15 2022 |
Anchal | Update | ASC | Yarm ASS working now | I finally got YARM AS to work today. It
is hard to describe what worked, I did a
lot of monkey business and some dirty offset |
|
|
16914
|
Tue Jun 14 19:34:06 2022 |
yuta | Update | SUS | Resonant frequency identification from the free swing test | [JC, Anchal, Yuta]
We are working on resonant frequency
idendification from the free swing test done |
7x |
|
16913
|
Tue Jun 14 18:45:43 2022 |
Anchal | Update | SUS | LO2 lower magnets are stuck in coil, won't come off | [Anchal, Yuta]
In the weekend, I ran a free swing
test on all optics. During this test, LO2 |
|
|
16912
|
Tue Jun 14 08:41:36 2022 |
JC | Update | OPLEV Tables | BS Oplev Table Sketch | [JC]
Lately, I have been working on
a 3d sketch of the BS OPLEV Table on SolidWorks. |
|
|
16911
|
Mon Jun 13 20:26:09 2022 |
yuta | Update | ASC | Yarm ASS re-tuning in progress -part 2- | [Anchal, Yuta]
We are still in the progress of re-commissioning |
|
|
16910
|
Fri Jun 10 21:10:01 2022 |
yuta | Update | SUS | ITMY ULCOIL mystery: Coil driver swap test | We checked the photos we have, but we didn't
have the photos which show ULCOIL situation
clearly. |
|
|
16909
|
Fri Jun 10 20:11:46 2022 |
yuta | Update | ASC | Yarm ASS re-tuning in progress | [Anchal, Yuta]
We tried to re-tune Yarm ASS today. |
|
|
16908
|
Fri Jun 10 15:04:23 2022 |
rana | Update | SUS | ITMY ULCOIL mystery: Coil driver swap test | Its good that the inductance test passed.
This means that the coil is OK. How does
the inspection photo look? This is the one |
|
|
16907
|
Fri Jun 10 15:02:04 2022 |
yuta | Update | SUS | Servo gain sign flipped for MC1 WFS relief | The servo gain for MC1 in /opt/rtcds/caltech/c1/Git/40m/scripts/MC/WFS/reliefWFS
was flipped to account for COIL_GAIN flip
done in 40m/16898. |
|
|
16906
|
Fri Jun 10 13:52:22 2022 |
JC | Update | OPLEV Tables | ITMX, ITMY, and Vertex Table Beam Paths | I have at taken photos and added arrows
which signify the beam paths for ITMX,
ITMY, and Vertex Oplev tables. |
|
|
16905
|
Fri Jun 10 13:02:14 2022 |
yuta | Update | SUS | ITMY ULCOIL mystery: Coil driver swap test | ITMY ULCOIL was measured to have ~3.3 mH
as measured from the flange. RTFE 40m/16896
. |
|
|
16904
|
Thu Jun 9 23:08:39 2022 |
rana | Update | SUS | ITMY ULCOIL mystery: Coil driver swap test | what was the result of the inductance measurement?
should be ~3.3 mH as measured from the flannge
or cable that goes to the flange from sat |
|
|
16903
|
Wed Jun 8 18:16:20 2022 |
yuta | Update | SUS | ITMY ULCOIL mystery: Coil driver swap test | To see if the ULCOIL channel of the ITMY coil driver
is working or not, I swapped ITMY coil |
|
|
16902
|
Wed Jun 8 16:57:46 2022 |
Koji | Update | IOO | Power Outage 220608: IMC restored | The IMC alignment was restored and the
IMC is nicely locking.
Once the vacuum level recovered |
|
|
16901
|
Wed Jun 8 16:33:26 2022 |
Koji | Update | General | Power Outage 220608: HVAC restored | I found the HVACs for the ends were off.
They were turned back on. |
|
|
16900
|
Wed Jun 8 16:03:12 2022 |
Koji | Update | VAC | Power Outage 220608: Vacuum Recovery | === Observation ===
TP1/2/3 failed. AUX RP
did not survive the power outage (of course)
=== |
|
|
16899
|
Tue Jun 7 19:40:45 2022 |
Anchal | Update | SUS | ITMY changed output matrix to disable use of UL coil | Since UL coil actuation is lost, we modified
the output matrix of ITMY to use only UR,
LR and LL face coils for POS, PIT and YAW |
|
|
16898
|
Tue Jun 7 19:13:12 2022 |
yuta | Update | SUS | Agreement on suspension damping loop polarity conventions | Anchal, Paco and I agreed to follow
the polarity conventions below for suspension
damping loops. |
|
|
16897
|
Tue Jun 7 18:32:46 2022 |
Deeksha | Update | Electronics | Noise Budgeting ADC (of redpitaya) | Made plots on i/p noise of redpitaya .
Need to reconsider sampling frequency (to
improve plot at lower freq) |
|
|
16896
|
Tue Jun 7 17:26:21 2022 |
yuta | Update | SUS | ITMY ULCOIL mystery not solved | [Paco, Yuta]
We investigated the ITMY ULCOIL
issue (40m/16873). |
|
|
16895
|
Mon Jun 6 22:08:55 2022 |
Koji | Update | IMC | MC1 OSEM sensor sign flipped, MC1/2/3 free swinging overnight for inmat diagonalization | Note that MC1 has a new style sat amp because
the old one collapsed. The sign flip might
have been the result of the replacement |
|
|
16894
|
Mon Jun 6 21:01:22 2022 |
yuta | Update | IMC | MC1 OSEM sensor sign flipped, MC1/2/3 free swinging overnight for inmat diagonalization | [Tomislav Andric, Rana, Yuta]
We put -1 to MC1 OSEM sensor gains
and re-tuned MC1 damping. |
|
|
16893
|
Mon Jun 6 16:09:23 2022 |
rana | Configuration | DetChar | Summary Pages: seis BLRMS | I updated the config file c1pem.ini in
/users/public_html/detcharsummary/ConfigFiles,
and commited it so I hope it works, but I |
|
|
16892
|
Mon Jun 6 13:35:11 2022 |
Paco | Update | LSC | First calibrated spectra of MICH at AS55 Q | [Paco, Yuta]
On the topic of high AS55_Q RFPD
offset, it seems it stems from a small residual |
|
|
16891
|
Mon Jun 6 09:37:16 2022 |
JC | Update | SUS | InMatCalc | [Paco, JC]
Paco and I attempted to calculate
the input matrices from May 24, 2022, but |
|
|
16890
|
Sun Jun 5 19:46:40 2022 |
Paco | Update | LSC | Fixed IMC Trans sum issue | [Paco]
Fixed the issue below:
|
|
|
16889
|
Fri Jun 3 17:42:50 2022 |
yuta | Update | LSC | MICH locks with AS55_Q | AS path at AP table as re-aligned and confirmed
that MICH can be locked with AS55 Q.
|
|
|
16888
|
Fri Jun 3 15:22:51 2022 |
yuta | Update | LSC | Both arms locked with POY/POX, IR beam centered on TMs with ASS | [JC, Paco, Yuta]
We locked both Y and X arms with POY11 |
|
|
16887
|
Fri Jun 3 12:13:58 2022 |
Paco | Configuration | CDS | Fix RFM channels | [Paco, Yuta]
We tried fixing the issue of LSC_TRY
and LSC_TRX channels not working. We first |
|
|
16886
|
Thu Jun 2 20:05:37 2022 |
yuta | Configuration | PSL | IMC input power recovered to 1W, some alignment works | [Paco, Yuta]
We have |
|
|
16885
|
Wed Jun 1 12:56:44 2022 |
Paco | Summary | Electronics | STEMlab 125 handout | [Paco, Deeksha]
Yesterday I handed Deeksha a red
pitaya (stemlab 125 - 10) to begin her summer |
|
|
16884
|
Wed Jun 1 11:56:28 2022 |
yuta | Update | ALS | Shutter driver for GRY replaced | [JC, Yuta]
We replaced a shutter driver for GRY |
|
|
16883
|
Tue May 31 17:30:01 2022 |
Yehonathan | Update | BHD | Green shutters fixed | [Paco, Yehonathan]
We fixed the slow control over
the green beam shutters. |
|
|
16882
|
Tue May 31 14:44:02 2022 |
JC | Update | Electronics | CRT TV / Monitor 6 | [Paco, JC]
Paco and I fixed the ethernet cable
which was hanging. We stopped models c1x07 |
|
|
16881
|
Fri May 27 17:46:48 2022 |
Paco | Summary | Computers | CDS upgrade visit, downfall and rise of c1lsc models | [Paco, Anchal-remote, Yuta, JC]
Sometime around noon today, right
after cds upgrade planning tour, c1lsc FE |
|
|
16880
|
Fri May 27 17:45:53 2022 |
yuta | Configuration | BHD | BHD camera installed, GRY aligned | [JC, Paco, Yuta]
After the IFO recovery (elog 40m/16881), |
|
|
16879
|
Fri May 27 15:53:17 2022 |
Tommy | Update | Electronics | RFSoC MTS Work | With some help from the forums, we printed
the status of the DAC MTS sync and were able
to determined that our board's vivado |
|
|
16878
|
Fri May 27 12:15:30 2022 |
JC | Update | Electronics | CRT TV / Monitor 6 | [Yehonathan, Paco, Yuta, JC]
As we were cleaning up this morning,
we heard a high pitch sound that turned into |
|