| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
16682
|
Sat Feb 26 01:01:40 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | I will make a detailed elog later today
giving a detailed outline of the connection from
the Agilent gauge controller to the vacuum |
|
|
16683
|
Sat Feb 26 15:45:14 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | I have attached a flow diagram of my understanding
of how the gauges are connected to the network.
Earlier today, I connected the |
|
|
16684
|
Sat Feb 26 23:48:14 2022 |
Koji | Update | SUS | ETMY SUS Electronics Replacement | [Ian, Koji] - Activity
on 25th (Fri)
We continued working on |
|
|
16685
|
Sun Feb 27 00:37:00 2022 |
Koji | Update | General | IMC Locking Recovery | Summary:
- IMC was locked.
- Some alignment change in the output |
|
|
16686
|
Sun Feb 27 01:12:46 2022 |
Koji | Update | General | IMC manual alignment procedure | We expect that the MC sus are susceptible
to the temperature change and the alignment
drifts away with time. |
|
|
16687
|
Mon Feb 28 15:51:07 2022 |
Ian MacMillan | Update | SUS | ETMY 1Y4 Electronics Replacement | [Paco, Ian]
paco helped me wire the ETMY 1Y4
rack. We wired the following (copied from |
|
|
16688
|
Mon Feb 28 19:15:10 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | I decided to create an independent service
for the XGS data readout so we can get this
to work first before trying to integrate |
|
|
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 |
|
|
16690
|
Tue Mar 1 19:26:24 2022 |
Koji | Update | SUS | ETMY SUS Electronics Replacement | The replacement key switches and Ne Indicators
came in. They were replaced and work fine
now. |
|
|
16691
|
Tue Mar 1 20:38:49 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | During my investigation, I inadvertently
overwrote the serial port configuration for
the connected devices. So I am now working |
|
|
16692
|
Wed Mar 2 11:50:39 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | Here is the IOLAN SDS TCP socket setting
and the USBserial setting for comparison.
I have also included the python |
|
|
16693
|
Wed Mar 2 12:40:08 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | Connector Test:
A quick test to rule out any issue
with the Ethernet to Serial adapter was done |
6x |
|
16694
|
Wed Mar 2 14:02:43 2022 |
Yehonathan | Update | BHD | Re-susspension of AS1 | Yesterday, I rebuilt the OpLev setup in
the cleanroom in order to suspend AS1. It
took me a while to find all the necessary |
|
|
16695
|
Thu Mar 3 04:11:36 2022 |
Koji | Update | SUS | ETMY 1Y4 Electronics Replacement | For the Y-end electronics replacement,
we want to remove unused power supplies.
In fact, we already removed the +/-5V supplies |
|
|
16696
|
Thu Mar 3 04:24:23 2022 |
Koji | Update | SUS | ETMY 1Y4 Electronics Replacement | The DC power strip at Y-end was connected
to the bottom two Sorensen power supplies.
They are configured to provide +/-18V. |
|
|
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, |
|
|
16699
|
Thu Mar 3 17:21:11 2022 |
Ian MacMillan | Update | SUS | ETMY 1Y4 Electronics Replacement | [Koji, Ian]
1) We attached the 30 coil driving
cables to the vacuum feed through to the |
|
|
16701
|
Fri Mar 4 18:12:44 2022 |
Koji | Update | VAC | RGA pumping down | 1. Jordan reported that the newly installed
Pirani gauge for P2 shows 850Torr while PTP2
show 680 Torr. Because of this, the vacuum |
|
|
16703
|
Sat Mar 5 02:03:46 2022 |
Koji | Update | SUS | ETMY 1Y4 Electronics Replacement | Oplev saga
Summary
- The new coil driver had not enough |
6x |
|
16704
|
Sun Mar 6 18:14:45 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | Following repeated failure to establish
communication between c1vac and the XGS600
controller via Perle IOLAN serial device |
|
|
16705
|
Mon Mar 7 10:06:32 2022 |
Yehonathan | Update | IOO | IMC unlocked again, completely misaligned | Came this morning and saw that the IMC
is unlocked.
Went into MC Lock screen and see |
|
|
16706
|
Mon Mar 7 13:53:40 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | So it appears that my deduction from
the pictures of needing a cable swap was
correct, however, it turns out that the installed |
|
|
16707
|
Mon Mar 7 14:52:34 2022 |
Koji | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | Great trouble shoot!
> I guess, the only remaining
issue now is the incorrect atmospheric |
|
|
16708
|
Mon Mar 7 14:55:33 2022 |
Koji | Update | IOO | IMC unlocked again, completely misaligned | Hmm, the bias values were reset at 2022-03-03-20:01UTC
which is 2022-03-03-12:01 PST with no apparent
disruption of the data acquisition (= no |
|
|
16709
|
Mon Mar 7 16:44:15 2022 |
Ian MacMillan | Update | SUS | ETMY SUS Electronics Replacement | Now that the ETMSUS is back up and running
I reran my measurements from the beginning
of the process. The results below show |
6x |
|
16710
|
Mon Mar 7 16:56:08 2022 |
Yehonathan | Update | BHD | Re-susspension of AS1 | {Paco, Yehonathan}
We tried to roughly balance the
adapter with two counterweights at the front, |
|
|
16711
|
Mon Mar 7 18:53:16 2022 |
Koji | Update | BHD | Re-susspension of AS1 | Not sure if that small difference can cause
the alignment inability. Particularly, the
removed metal was just below the wire. This |
|
|
16713
|
Tue Mar 8 12:08:47 2022 |
Tega | Update | VAC | Ongoing work to get the FRG gauges readouts to EPICs channels | OMG, it worked! It was indeed a calibration
issue and all I had to do was press the "OK"
button after selecting the "CAL" |
|
|
16714
|
Tue Mar 8 12:24:13 2022 |
Yehonathan | Update | BHD | Re-susspension of AS1 | The gluing seemed to be successful. I assembled
the side block with the magnet on the adapter.
Paco helped me hang the adapter on the SOS |
|
|
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 |
|
|
16717
|
Wed Mar 9 10:23:28 2022 |
Jordan | Update | VAC | Leak Testing of New Manual Gate Valve - Attempt #1 | Jordan, Chub, Paco
Chub and I went into the lab this
morning to leak check the new gate valve |
|
|
16718
|
Wed Mar 9 11:52:18 2022 |
Yehonathan | Update | BHD | Simplified BHD readout sketch on ITMY table | I have made an editable
draw.io diagram of the planned simplified
BHD setup on the ITMY table (see attached). |
|
|
16719
|
Wed Mar 9 12:57:52 2022 |
Koji | Update | BHD | Simplified BHD readout sketch on ITMY table | - BHD beams were already mixed in the chamber.
So we don't need a BS on the table. (Probably
there is no BS already) |
|
|
16721
|
Thu Mar 10 09:39:59 2022 |
Jordan | Update | VAC | Leak Testing of New Manual Gate Valve - Attempt #2 | This morning Chub and I leak checked the
manual gate valve with the RGA and helium.
There was no change in the helium partial |
|
|
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 |
|
|
16723
|
Fri Mar 11 16:43:03 2022 |
Ian MacMillan | Update | SUS | ETMY SUS Electronics Replacement | I updated the gain of the ct2um filter
on the OSEMS for ETMY and decreased their
gain by a factor of 9 from 0.36 to 0.04. |
|
|
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. |
|
|
16738
|
Mon Mar 21 14:22:52 2022 |
Anchal | Update | SUS | ETMY Alignmnet offsets needed to be changed | I'm not sure why but the PIT and YAW
offset values of +2725 and -2341 were not
sufficient for the reflected OPLEV beam to |
|
|
16739
|
Mon Mar 21 18:00:05 2022 |
Ian MacMillan | Update | BHD | XARM AUX alignment cont. | [Ian, Paco]
Continuing with the previous alignment
that we stoped on friday, we re set up my |
|
|
16743
|
Fri Mar 25 11:39:14 2022 |
Anchal | Update | SUS | ETMY SUS Electronics Replacement - Questions | After Ian updated the cts2um filters for
OSEM, shouldn't the damping gains be
increased back by factor of 10 to previos |
|
|
16746
|
Mon Mar 28 16:25:34 2022 |
Ian MacMillan | Update | SUS | ETMY SUS Electronics Replacement - Questions | The point of changing the gains was to
return the system to its origional state.
ie I wanted the over all gain of the physical |
|
|
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 |
|
|
16751
|
Fri Apr 1 14:26:50 2022 |
Tega | Update | Optical Levers | Simplified sketch on MC table | Here is an early sketch
of the MC table.
|
|
|
16752
|
Fri Apr 1 17:02:02 2022 |
Koji | Update | Optical Levers | Simplified sketch on MC table | We are supposed to have BS Oplev Beams.
We don't like the shallow angle reflections
(i.e. AOI>45deg). |
|
|
16753
|
Fri Apr 1 22:22:29 2022 |
Koji | Update | Optical Levers | Simplified sketch on MC table | Possibility to swap BS and ITMX
tables:
BS table, which Tega said MC table, |
|
|
16755
|
Mon Apr 4 15:49:06 2022 |
Tega | Update | Optical Levers | Simplified sketch on BS table | I have updated the BS table using feedback
from Koji and Paco and the attached
pdf document is the latest iteration. |
|