| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
16559
|
Sat Jan 8 16:01:42 2022 |
Paco | Summary | BHD | Part IX of BHR upgrade - Placed LO2 filters | Added input filters, input matrix, damping
filters, output matrix, coil filters, and
copy the state over from ITMX into LO2 |
|
|
16563
|
Mon Jan 10 15:45:55 2022 |
Paco | Update | Electronics | ITMY feedthroughs and in-vac cables installed - part I | The ITMY 10" flange with 10 DSUB-25
feedthroughs has been installed with the
cables connected at the in-vac side. |
|
|
16569
|
Tue Jan 11 10:23:18 2022 |
Paco | Update | Electronics | ITMY feedthroughs and in-vac cables installed - part II | [Paco, Chub]
The ITMY 10" flange with 4
DSUB-25 feedthroughs has been installed with |
|
|
16574
|
Tue Jan 11 14:21:53 2022 |
Paco | Update | Electronics | BS feedthroughs and in-vac cables installed | [Paco, Yehonathan, Chub]
The BS chamber 10" flange
with 4 DSUB-25 feedthroughs has been installed |
|
|
16588
|
Fri Jan 14 14:04:51 2022 |
Paco | Update | Electronics | RFSoC 2x2 board arrived | The Xilinx RFSoC 2x2 board arrived right
before the winter break, so this is kind
of an overdue elog. I unboxed it, it came |
|
|
16591
|
Tue Jan 18 14:26:09 2022 |
Paco | Summary | BHD | Part IX of BHR upgrade - Placed remaining filters SR2, PR3, PR2 | [Anchal, Paco]
Added input filters, input matrix,
damping filters, output matrix, coil filters, |
|
|
16592
|
Tue Jan 18 15:19:49 2022 |
Paco | Summary | BHD | Part IV of BHR upgrade - Replaced old SR3 with SOS SR2. OSEM tuning attemtped. | [Tega, Anchal, Paco]
We started working on SR2 installation.
Preliminary work involved |
|
|
16596
|
Wed Jan 19 12:56:52 2022 |
Paco | Summary | BHD | AS4 OSEMs installation | [Paco, Tega, Anchal]
Today, we started work on AS4 SOS
by checking the OSEM and cable. Swapping |
|
|
16604
|
Thu Jan 20 16:42:55 2022 |
Paco | Update | BHD | AS4 OSEMs installation - part 2 | [Paco]
Turns out, the shifting was likely
due to the table level. Because I didn't |
|
|
16620
|
Mon Jan 24 21:18:40 2022 |
Paco | Summary | BHD | Part IX of BHR upgrade - AS1 placed and OSEM tuned | [Paco]
AS1 was installed in the ITMY chamber
today. For this I moved AS4 to its nominal |
|
|
16625
|
Thu Jan 27 08:27:34 2022 |
Paco | Summary | BHD | Part IX of BHR upgrade - AS1 inspection and correction | [Paco]
This morning, I went into ITMY
chamber to inspect AS1 after the free swinging |
|
|
16628
|
Thu Jan 27 18:03:36 2022 |
Paco | Summary | BHD | Part III of BHR upgrade - Install PR2, balance, and attempt OSEM tuning | [Paco, Anchal, Tega]
After installing the short OSEMs
into PR2, we moved it into ITMX Chamber. |
|
|
16630
|
Fri Jan 28 10:37:59 2022 |
Paco | Summary | BHD | Part III of BHR upgrade - PR2 OSEM finalized, reinsall LO1 OSEMs | [Paco]
Thanks to Koji's hotfix on
the PR2 SatAmp box last evening, this morning |
|
|
16648
|
Mon Feb 7 09:00:26 2022 |
Paco | Update | General | Scheduled power outage recovery | [Paco]
Started recovering from scheduled
(Feb 05) power outage. Basically, time-reversing |
|
|
16655
|
Wed Feb 9 16:43:35 2022 |
Paco | Update | General | Scheduled power outage recovery - Locking mode cleaner(s) | [Paco, Anchal]
We went in and measured
the power after the power splitting HWP at |
|
|
16669
|
Mon Feb 14 18:31:50 2022 |
Paco | Update | General | Scheduled power outage recovery - IMC recovery progress | [Paco, Anchal, Tega]
We have been realigning the IMC
as of last Friday (02/11). Today we made |
|
|
16670
|
Mon Feb 14 18:43:49 2022 |
Paco | Summary | General | SOS materials clean room cleared | [Yehonathan, Paco]
We put away most items used / involved
in SOS assembly and characterization. Many |
|
|
16689
|
Tue Mar 1 16:01:14 2022 |
Paco | Update | Electronics | RFSoC 2x2 board -- setup for remote work & BALUN saga | [Tommy, Paco]
Since last week I've worked
with tommy on getting the RFSoC 2x2 board |
|
|
16698
|
Thu Mar 3 17:09:46 2022 |
Paco | Update | BHD | Re-susspension of AS1 | [Anchal, Paco]
Wire clamp spare was installed,
furthermore AS1 was reinstalled on adapter, |
|
|
16715
|
Tue Mar 8 19:29:36 2022 |
Paco | Update | BHD | Re-balance of AS1 | [Paco]
Installed AS1 in vacuum, near the
center of the table, and installed the OSEMs. |
|
|
16716
|
Wed Mar 9 09:35:26 2022 |
Paco | Update | BHD | Re-balance of AS1 | [Paco]
AS1 is installed, OSEMs balanced,
and the optic damped successfully. We should |
|
|
16722
|
Thu Mar 10 10:05:49 2022 |
Paco | Update | SUS | AS1 free swing test | [Paco, Ian]
Begin free swinging test
for AS1 at 10:05 AM, set for ~ 2.04 hours.
Test |
|
|
16725
|
Tue Mar 15 10:45:31 2022 |
Paco | Update | General | Assembled small in-vac optics | [Paco]
This morning I assembled LO3,
LO4 and AS3 (all |
|
|
16731
|
Thu Mar 17 11:40:41 2022 |
Paco | Update | SUS | ETMY green PZT HV supply | [Anchal, Paco]
We installed a HV kepco power supply
for the green PZT steering the YAUX beam. |
|
|
16732
|
Thu Mar 17 16:50:53 2022 |
Paco | Update | BHD | XARM AUX alignment | [Ian, Paco]
We opened the ITMX chamber and
Inspected PR2 and LO1 and |
|
|
16735
|
Fri Mar 18 17:15:19 2022 |
Paco | Update | BHD | XARM AUX alignment cont. | [Paco, Ian]
First, we re-balanced the ITMX
OSEMs so that they would damp at around half-a-shadow. |
|
|
16745
|
Sat Mar 26 13:04:38 2022 |
Paco | Summary | BHD | Part IIa of BHR upgrade - Green laser alignment on Yarm | I came for a bit to check on the "1Y0
burning smell" reported by Koji last
evening. I agree that there's a toasty |
|
|
16748
|
Tue Mar 29 17:35:54 2022 |
Paco | Update | SUS | Damping fix on BS, AS4, PR2, and PR3 | [Ian, Paco]
We removed the "cheby"
filters from AS4, PR2 and PR3 which had been |
|
|
16770
|
Mon Apr 11 21:13:21 2022 |
Paco | Summary | BHD | Part IIa of BHR upgrade - POY11 debugging | [Paco, Koji]
I asked Koji for some advice regarding
closing the loop on YARM using POY11. A few |
|
|
16778
|
Thu Apr 14 10:18:35 2022 |
Paco | Summary | BHD | 2 in oplev mirrors incompatible with LMR2V | [Paco, JC]
We realized the 2 in oplev mirrors
(Thorlabs BB2-E02) for ITMYOL, SRMOL, and |
|
|
16780
|
Thu Apr 14 18:34:51 2022 |
Paco | Summary | BHD | ITMY Oplev reinstalled (Re: 2 in oplev mirrors incompatible with LMR2V) | [Paco, Yehonathan]
We installed ITMYOL1 and ITMYOL2
on the ITMY chamber. We aligned the ITMY |
|
|
16781
|
Thu Apr 14 18:39:13 2022 |
Paco | Summary | BHD | Part IIa of BHR upgrade - POY11 debugging | [Paco]
In reply to Koji's questions;
Q1: What is the product number |
|
|
16786
|
Mon Apr 18 17:53:45 2022 |
Paco | Summary | BHD | Part IIa of BHR upgrade - POY11 debugging | [Paco, Ian]
We aligned the X-arm IR laser
First fix pointing on the |
|
|
16788
|
Tue Apr 19 18:10:10 2022 |
Paco | Update | BHD | Part V of BHR upgrade - POX11 path, LO path, and ITMX Oplev | [Yuta, Paco]
We set up POX11 beam path from
ITMX chamber to the ITMX in-air table. To |
|
|
16789
|
Wed Apr 20 08:20:22 2022 |
Paco | Update | BHD | Part V of BHR upgrade - PR2 weirdness | Yesterday, I tried tuning the PR2 damping
gains by increasing the gain until the damping
gave the ~5 oscillations (by watching the |
|
|
16797
|
Thu Apr 21 16:49:01 2022 |
Paco | Update | BHD | Part V of BHR upgrade - BS Oplev + LO1 offset | [Paco, JC, Yuta]
We aligned the BS oplev using the
new BSOL mirror pair. The main change is |
|
|
16821
|
Sat Apr 30 13:29:33 2022 |
Paco | Update | BHD | POX Beam issues --- fixed, ASL alignment on vertex chamber | [Paco, Anchal, Yuta]
We opened the BSC and ITMX chamber
in the morning (Friday) to investigate POX11 |
|
|
16844
|
Tue May 10 18:25:43 2022 |
Paco | Update | BHD | Green Transmission path | [Yuta, Paco]
We installed GRX_SM1,
GRX_SM2, and finished aligning |
|
|
16847
|
Thu May 12 17:20:08 2022 |
Paco | Update | Alignment | POP Beam on CCD | [Paco]
Got POP beam centered on camera
and nominally on the two PDs. Attachment |
|
|
16852
|
Fri May 13 18:42:13 2022 |
Paco | Update | Alignment | ITMX and ITMY sat amp failures | [Yuta, Anchal, Paco]
As described briefly by JC, there
were multiple failure modes going during |
|
|
16861
|
Wed May 18 08:30:29 2022 |
Paco | Update | BHD | SRM OpLev | [Paco]
The SRM Oplev injection and detection
paths interfere heavily with the POY11. Due |
|
|
16864
|
Thu May 19 08:51:40 2022 |
Paco | Update | BHD | SRM OpLev | [Paco, Ian]
After agreement from Yuta/Anchal,
I moved POYM1 yaw to clear the aforementioned |
|
|
16868
|
Fri May 20 20:03:48 2022 |
Paco | Update | BHD | ITMY chamber work finished - LO and AS overlapped | [Paco, Anchal, Yuta]
Today, in short we:
Recovered alignment of |
|
|
16869
|
Mon May 23 13:16:59 2022 |
Paco | Update | BHD | End of vent - checks | [Paco, Yuta]
Prep for closing and pump down.
Aligned IFO to maximize |
|
|
16874
|
Wed May 25 16:56:44 2022 |
Paco | Configuration | BHD | IFO recovery - IMC alignment | [Yuta, Paco]
We aligned IMC to recover the IFO
progressively. First step was to center the |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
16890
|
Sun Jun 5 19:46:40 2022 |
Paco | Update | LSC | Fixed IMC Trans sum issue | [Paco]
Fixed the issue below:
|
|
|
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 |
|