| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
16457
|
Mon Nov 8 17:52:22 2021 |
Ian MacMillan | Update | SUS | Setting up suspension test model | [Ian, Tega]
We combined a controler and a plant
model into a single modle (See first attachment) |
|
|
16456
|
Mon Nov 8 17:22:27 2021 |
Yehonathan | Update | BHD | SOS assembly | Big Gluing
Day |
|
|
16455
|
Mon Nov 8 15:29:05 2021 |
Paco | Summary | BHD | 1Y1 rack work; New power for cameras | [Paco, Anchal]
In reference to Koji's concern
(see previous elog), we have completely removed |
|
|
16454
|
Mon Nov 8 13:13:00 2021 |
Koji | Summary | BHD | 1Y1 rack work; Sorensens removed | Updated the rack layout. Now there is an
issue.
We were supposed to have 1U space |
|
|
16453
|
Mon Nov 8 10:13:52 2021 |
Paco | Summary | BHD | 1Y1 rack work; Sorensens removed | [Paco, Chub]
Removed all sorensen power supplies
from this rack except for 12 VDC one; that |
|
|
16452
|
Fri Nov 5 20:35:10 2021 |
Koji | Update | BHD | Feedthru / Optical Mounts | - New feedthrus [4xDB25 Qty 4 / 8xDB25
Qty 1] are placed on the wire shelf at the
entrance -> Jordan, please clean them. |
|
|
16451
|
Fri Nov 5 12:49:32 2021 |
rana | Update | SUS | Setting up suspension test model | Please don't put it on c1sus2. Put
it on the completely independent test stand
as we discussed Wednesday. You must |
|
|
16450
|
Fri Nov 5 12:21:16 2021 |
Anchal | Summary | BHD | Part VI of BHR upgrade - Removal of ITMYC optics | Today I opened the ITMY chamber and removed
the following optics and placed them in Xend
flow bench (See attachment 1-3 for updated |
|
|
16449
|
Thu Nov 4 18:29:51 2021 |
Tega | Update | SUS | Setting up suspension test model | [Ian,Tega]
Today we continued working on setting
up the 6 degrees of freedom model for |
|
|
16448
|
Thu Nov 4 15:03:43 2021 |
Koji | Summary | BHD | 1Y1 rack work | I have visited the binder file for the
40m wiring file in the control room.
The 12V power supply on 1Y1 is for |
|
|
16447
|
Wed Nov 3 16:55:23 2021 |
Ian MacMillan | Summary | SUS | SUS Plant Plan for New Optics | [Ian, Tega, Raj]
This is the rough plan for the
testing of the new suspension models with |
|
|
16446
|
Tue Nov 2 22:50:30 2021 |
Koji | Update | BHD | SOS assembly | 2.5Hz is surprising. Can you move it down
to sub 1Hz by adding a socket cap screw at
the top instead of the set screw for the |
|
|
16445
|
Tue Nov 2 18:54:41 2021 |
Anchal, Paco | Update | BHD | Optical fibres laid for BHD upgrade | We successfully laid down all required
optical fibre fiber cables from 1X4-1X7
region to 1Y1-1Y3 region today. This includes |
|
|
16444
|
Tue Nov 2 16:42:00 2021 |
Paco | Summary | BHD | 1Y1 rack work | [paco, ian]
After the new 1Y0 rack was placed
near the 1Y1 rack by Chub and Anchal, today |
|
|
16443
|
Tue Nov 2 15:02:03 2021 |
Yehonathan | Update | BHD | SOS assembly | {Yehonathan, Tega}
We took the free-swinging spectra
of the OpLev in the X and Y direction. |
|
|
16442
|
Mon Nov 1 14:51:34 2021 |
Koji | Update | General | Checking the vent plan | The vent team described
a detailed vent plan (and reports where the
actions have been performed) |
|
|
16441
|
Sun Oct 31 14:21:31 2021 |
rana | HowTo | Treasure | IFOCad | IFOcad model/video of the AEI 10m interferometer:
https://10m.aei.mpg.de/design-and-sensitivity/ |
|
|
16440
|
Fri Oct 29 14:39:37 2021 |
Anchal | Summary | BHD | 1Y1 cleared. IY3 ready for C1SUS2 I/O and FE. | [Anchal, Paco]
We cleared 1Y1 rack today removing
the following items. This stuff is sitting |
|
|
16439
|
Thu Oct 28 23:13:19 2021 |
Yehonathan | Update | BHD | SOS assembly | {Tega, Yehonathan, Koji}
Suspension |
|
|
16438
|
Thu Oct 28 17:01:54 2021 |
Anchal | Summary | BHD | Part III of BHR upgrade - Adding temp fixed flat mirror for PR2 | [Anchal, Paco, Ian]
We added a Y1-2037-0 mirror
(former IPPOS SM2 mirror) on a fixed mount |
|
|
16437
|
Thu Oct 28 16:32:32 2021 |
Paco | Summary | BHD | Part IV of BHR upgrade - Removal of BSC eastern optics | [Ian, Paco, Anchal]
We turned off the BSC oplev laser
by turning the key counterclockwise. Ian |
|
|
16436
|
Wed Oct 27 19:34:52 2021 |
Koji | Summary | Electronics | New electronics racks | 1. The rack we cleaned today (came from
West Bridge) will be placed between 1X3 and
1X4, right next to 1X4 (after removing the |
|
|
16435
|
Wed Oct 27 18:16:45 2021 |
Koji | Summary | BHD | Part II of BHR upgrade - Relocation of TT2 and MMT1/2 alignment | - Moving the MMT2 south by a cm is fine.
This will give you ~0.5cm at TT1 without
changing the other alignment much. |
|
|
16434
|
Wed Oct 27 18:11:37 2021 |
Koji | Summary | BHD | Part II of BHR upgrade - Relocation of TT2 and MMT1/2 alignment | Closed the PSL shutter @18:11
During the vent, we want to keep the
cavity unlocked if not necessary. |
|
|
16433
|
Wed Oct 27 16:38:02 2021 |
Anchal | Summary | BHD | Part II of BHR upgrade - Relocation of TT2 and MMT1/2 alignment | [Anchal, Paco]
We opened BSC and Injection Chamber
doors. We removed two stacked counterweights |
|
|
16432
|
Wed Oct 27 16:31:35 2021 |
Anchal | Summary | BHD | Part III of BHR upgrade - Removal of PR2 Small Suspension | I went inside the ITMX Chamber to read
off specs from PR2 edge. This was required
to confirm our calculations of LO power for |
|
|
16431
|
Wed Oct 27 16:27:16 2021 |
Anchal | Summary | BHD | Part II of BHR upgrade - Prep | [Anchal, Paco, Ian]
Before we could start working on
Part II, which is to relocate TT2 to new |
|
|
16430
|
Tue Oct 26 18:24:00 2021 |
Ian MacMillan | Summary | CDS | c1sus2 DAC to ADC test | [Ian, Anchal, Paco]
After the Koji found that there
was a |
|
|
16429
|
Tue Oct 26 16:56:22 2021 |
Paco | Summary | BHD | Part I of BHR upgrade - Locked PMC and IMC | [Paco, Ian]
We opened |
|
|
16428
|
Tue Oct 26 14:53:24 2021 |
Koji | Update | Electronics | Rack | 1. We have a rack at the 40m storage. We
are free to take it to the lab. If there
is a tag, tell the info to Liz. Let's |
|
|
16427
|
Tue Oct 26 13:27:07 2021 |
Tega | Summary | Electronics | Sat Amp modification Summary | Modifications and testing of SatAmp
units COMPLETE. Attachments 1 & 2 show
all 19 units, one installed unit and the |
|
|
16426
|
Tue Oct 26 10:17:14 2021 |
Yehonathan | Update | BHD | SOS assembly | Things that I need to start suspending
optics:
1. Winch adapter plate (D970314). |
|
|
16425
|
Mon Oct 25 17:37:42 2021 |
Anchal | Summary | BHD | Part I of BHR upgrade - Removed optics from BSC | [Anchal, Paco, Ian]
Clean room etiquettes
Two
people in coverall suits, head covers, masks |
|
|
16424
|
Mon Oct 25 13:23:45 2021 |
Anchal | Summary | BHD | Before photos of BSC | [Yehonathan, Anchal]
On thursday Oct 21 2021, Yehonathan
and I opened the door to BSC and took some |
|
|
16423
|
Fri Oct 22 17:35:08 2021 |
Ian MacMillan | Summary | PEM | Particle counter setup near BS Chamber | I have done some reading about where would
be the best place to put the particle counter.
The ISO standard (14644-1:2015) for |
|
|
16422
|
Thu Oct 21 15:24:35 2021 |
rana | Summary | PEM | Particle counter setup near BS Chamber | rethinking what I said on Wednesday - its
not a good idea
to put the particle counter on a vac chamber |
|
|
16421
|
Thu Oct 21 15:22:35 2021 |
rana | Summary | PEM | Particle counter setup near BS Chamber | SVG doesn't work in my browser(s).
Can we use PDF as our standard for all graphics
other than photos (PNG/JPG) ? |
|
|
16420
|
Thu Oct 21 11:41:31 2021 |
Anchal | Summary | PEM | Particle counter setup near BS Chamber | The particle count channel names were changes
yesterday to follow naming conventions used
at the sites. Following are the new names: |
|
|
16419
|
Thu Oct 21 11:38:43 2021 |
Jordan | Update | SUS | Standoffs for Side Magnet on 3" Adapter Ring SOS Assembly | I had 8 standoffs made at the Caltech chemistry
machine shop to be used as spacers for the
side magnets on the 3" Ring assembly. |
|
|
16418
|
Wed Oct 20 15:58:27 2021 |
Koji | Update | VAC | How to vent TP1 | Probably the hard disk of c0rga is dead.
I'll follow up in this elog later today.
Looking at the log in /opt/rtcds/caltech/c1/scripts/RGA/logs |
|
|
16417
|
Wed Oct 20 11:48:27 2021 |
Anchal | Summary | CDS | Power supple configured correctly. | This was horrible! That's my bad, I
should have checked the configuration before
assuming that it is right. |
|
|
16416
|
Wed Oct 20 11:16:21 2021 |
Anchal | Summary | PEM | Particle counter setup near BS Chamber | I have placed a GT321 particle counter
on top of the MC1/MC3 chamber next to the
BS chamber. The serial cable is connected |
|
|
16415
|
Tue Oct 19 23:43:09 2021 |
Koji | Summary | CDS | c1sus2 DAC to ADC test | (Because of a totally unrelated reason)
I was checking the electronics units for
the upgrade. And I realized that |
|
|
16414
|
Tue Oct 19 18:20:33 2021 |
Ian MacMillan | Summary | CDS | c1sus2 DAC to ADC test | I ran a DAC to ADC test on c1sus2 channels
where I hooked up the outputs on the DAC
to the input channels on the ADC. We used |
|
|
16413
|
Tue Oct 19 11:30:39 2021 |
Koji | Update | VAC | How to vent TP1 | I learned that TP1 was vented through the
RGA room in the past. This can be done by
opening VM2 and a manual valve ("needle |
|
|
16412
|
Tue Oct 19 10:59:09 2021 |
Koji | Update | VAC | Vent Started / Completed | [Chub, Jordan, Yehonathan, Anchal,
Koji]
North door of the BS chamber opened |
|
|
16411
|
Mon Oct 18 16:48:32 2021 |
Tega | Update | Electronics | Sat Amp modifications | [S2100738, S2100745, S2100751] Completed
three more Sat Amp units modification with
seven remaining. |
|
|
16410
|
Mon Oct 18 10:02:17 2021 |
Koji | Update | VAC | Vent Started / Completed | [Chub, Jordan, Anchal, Koji]
- Checked the main volume is isolated.
- TP1 and TP2 were made isolated from |
|
|
16409
|
Fri Oct 15 20:53:49 2021 |
Koji | Summary | General | Vent Prep | From
the IFO point of view, all look good and
we are ready for venting from Mon Oct 18 |
|
|
16408
|
Fri Oct 15 17:17:51 2021 |
Koji | Summary | General | Vent Prep | I took over the vent prep: I'm going
through the list in [ELOG
15649] and [ELOG |
7x |