ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
17822
|
Sun Sep 3 08:37:18 2023 |
Hiroki | Update | General | Put away beam chopper | *This work was done on
Aug. 11th. |
|
|
17823
|
Sun Sep 3 08:47:43 2023 |
Hiroki | Update | Optical Levers | Found a fiber-coupled visible diode laser (iFLEX-1000) | [Koji, Hiroki]
*This
work was done on Aug. 11th. |
|
|
17824
|
Tue Sep 5 04:48:20 2023 |
Hiroki | Summary | General | Summary of the late submitted entries | After I came back to Japan, I wrote and
revised some Elog entries that I was not
able to finish during my stay. |
|
|
17825
|
Tue Sep 5 11:04:33 2023 |
rana | Update | ASS | Reducing XARM-ASS Errors | I recommend usinng the DC offset method
that Koji and I used for measuring the IMC
WFS sensing matrix (not the AC method that |
|
|
17827
|
Tue Sep 5 18:46:08 2023 |
Koji | Summary | General | Dsub 9 (DB9) cable inventory | I went to Section Y7 to check the stock
DB9-MF cables. The custom dsub cables are
also there. |
|
|
17828
|
Wed Sep 6 12:53:11 2023 |
Paco, Radhika, Murtaza | Update | ASS | Reducing XARM-ASS Errors | [Radhika, Murtaza]
To create the sensing matrix, we
tried the DC offset method by giving offsets |
|
|
17830
|
Thu Sep 7 14:09:37 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition | The vertex electronics transition work
will begin on Monday. We expect the ongoing
ASS-X work to be completed by then. But if |
|
|
17831
|
Thu Sep 7 16:25:01 2023 |
Murtaza | Update | SUS | ETMX Testing | COIL
BALANCING FOR ETMX |
|
|
17832
|
Thu Sep 7 18:42:02 2023 |
Paco, Radhika, Murtaza | Update | ASS | Reducing XARM-ASS Errors | [Radhika, Murtaza]
We recalculated the sensing matrix
for XARM ASS by collecting each sensor's |
|
|
17833
|
Thu Sep 7 21:09:17 2023 |
Paco | Update | | eCARM and eDARM to ALS CARM and ALS DARM | Tonight
I managed to lock CARM and DARM under ALS
control only |
|
|
17834
|
Fri Sep 8 17:11:53 2023 |
Koji | Update | CDS | FSSSlow restoration | I came to the lab to see the recovery work
from the power glitch this morning 8:15AM.
All CDS seems up. The suspensions are somewhat |
|
|
17835
|
Sat Sep 9 16:25:07 2023 |
Radhika | Update | ASS | Reducing XARM-ASS Errors | [Radhika, Murtaza]
This post summarizes XARM ASS efforts
from Friday 9/8 and Saturday 9/9. |
|
|
17836
|
Mon Sep 11 19:35:27 2023 |
Radhika | Update | ASS | Reducing XARM-ASS Errors | [Radhika, Murtaza, Paco]
Today we decided to take a closer
look at the demod phases of the T and L error |
|
|
17837
|
Tue Sep 12 18:49:51 2023 |
Koji | Update | General | Transformed 3x 18bit AI chassis into 16bit | For the preparation of the electronics
upgrade, three 18bit DAC AI chassis were
transformed to 16bit version. |
|
|
17838
|
Tue Sep 12 18:55:55 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition | We are ready to do the transition
from Wed 1PM.
The items for the upgrade was collected |
|
|
17839
|
Tue Sep 12 23:10:06 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition | Note on Sorensen:
- Eurocard crate requires
+-15V. We can place two 15V Sorensens on |
|
|
17840
|
Wed Sep 13 12:46:03 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition ~ final prep |
[OK] Reflected the sorensen
setup (minimal change from the conventional
config. (See the attachment)
Before |
|
|
17841
|
Wed Sep 13 13:50:48 2023 |
Radhika | Summary | Electronics | Vertex Electronics Transition ~ final prep | OSEM values for 8 vertex optics ~before~
electronics upgrade (averaged over 60 s):
['C1:SUS-BS_ULSEN_IN1', |
|
|
17842
|
Wed Sep 13 14:02:29 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition ~ final prep | - 4x 1064nm NPROs
are OFF. The lab hall is laser safe, although |
|
|
17843
|
Wed Sep 13 17:26:26 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition ~ DAY 1 | [Radhika, Paco, Murtaza, Koji]
- Removed all the units
that will not be used in the new setup. |
|
|
17844
|
Thu Sep 14 11:46:28 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition ~ DAY 2 | [Radhika, Paco, Murtaza, Koji]
Morning work:
Power Strip assembly
Power |
|
|
17845
|
Fri Sep 15 12:51:29 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition ~ DAY 3 | [Radhika, Paco, Murtaza, Koji]
We made great |
|
|
17846
|
Fri Sep 15 18:50:34 2023 |
Koji | Update | CDS | Dolphin Fencing Investigation / Full CDS crash / nodus reboot / recovered all | Dolphin
Fencing technique
I believe that the dolphin emits |
|
|
17847
|
Fri Sep 15 22:57:15 2023 |
Koji | Summary | Electronics | c1sus ADC1 AA chassis fix | c1sus ADC1 AA chassis fix.
Brought the chassis on
the workbench.
Opened the chassis |
|
|
17848
|
Mon Sep 18 10:26:12 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition ~ DAY 4 | [JC, Paco, Radhika, Koji]
Morning/Afternoon work:
Long DB cable installation |
|
|
17849
|
Mon Sep 18 18:38:02 2023 |
Radhika | Summary | Electronics | Vertex Electronics Transition ~ DAY 4 | [Koji, Paco, Radhika]
We recorded the 5 OSEM sensor readings
for each of the 8 upgraded optics. |
|
|
17852
|
Mon Sep 18 20:16:03 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition ~ DAY 4 | - Here is the thought how does the factor
of 9 come from:
We are driving OSEM LEDs |
|
|
17853
|
Mon Sep 18 23:09:40 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition ~ DAY 4 | MC1 is ready for the damping test
Trouble shooting plan
Is the LED on? => Check |
|
|
17854
|
Tue Sep 19 17:25:38 2023 |
Radhika | Summary | Electronics | Vertex Electronics Transition ~ DAY 5 | MCs
OSEM input / coil output gain tuning
Seeing
that MC1, MC2, MC3 OSEM readings looked reasonable |
|
|
17855
|
Tue Sep 19 19:21:10 2023 |
Radhika | Summary | Electronics | Vertex Electronics Transition ~ DAY 5 | [Koji, Radhika]
Update to the Foton/Load |
|
|
17856
|
Tue Sep 19 19:48:20 2023 |
Koji | Summary | Electronics | Vertex Electronics Trouble shooting | [Paco, Murtaza, JC, Koji, Radhika]
MC1/MC2 was working fine.
At |
|
|
17857
|
Tue Sep 19 20:49:08 2023 |
Koji | Summary | Electronics | Vertex Electronics Trouble shooting | [Murtaza, Koji]
ITMX / BS / PRM sat amps were removed
from the rack and checked on the workbench. |
|
|
17858
|
Tue Sep 19 23:40:33 2023 |
Koji | Summary | Electronics | Vertex Electronics Wed Plan | Plan
for Sept 20, 2023
For morning people: |
|
|
17859
|
Wed Sep 20 00:03:22 2023 |
Koji | Summary | Electronics | re: Filter Coefficient Loading Issue | I asked CDS mattermost for help. Chris
(Wipf) checked it and reported it is working
fine as usual (without fixing anything). |
|
|
17860
|
Wed Sep 20 00:20:09 2023 |
Koji | Summary | Electronics | Vertex Electronics ~ change in the actuator calibration | I found the actuator calibration is more
complicated. The numbers I reported in the
previous elog was not correct. |
|
|
17861
|
Wed Sep 20 14:04:58 2023 |
Radhika | Summary | Electronics | Vertex Electronics ~ change in the actuator calibration | MC1/MC2/MC3 damping
restored
I tweaked |
|
|
17862
|
Wed Sep 20 17:02:22 2023 |
Radhika | Summary | Electronics | Vertex Electronics ~ change in the actuator calibration | [Paco, Radhika]
IMC LOCKED
We |
|
|
17863
|
Wed Sep 20 17:28:17 2023 |
Radhika | Summary | Electronics | re: Filter Coefficient Loading Issue | I noticed the same issue today with C1RMS.txt,
when trying to update the coil actuation
gains for SRM. The filter changes were saved |
|
|
17864
|
Wed Sep 20 18:18:38 2023 |
Koji | Summary | Electronics | Vertex Electronics Wed Plan | [Koji, Murtaza, JC]
Regarding PRM/BS:
PRM2 cable and BS2 cable |
|
|
17865
|
Thu Sep 21 12:02:25 2023 |
Koji | Update | General | Power Outage Sept 21, 2023 ~9AM | [JC, Paco, Koji]
We had a power outage on Sept 21,
2023 at ~9AM. This is the third power outage |
|
|
17866
|
Thu Sep 21 14:22:02 2023 |
Radhika | Summary | Electronics | Vertex Electronics CDS Update | I recalculated the scale factors between
OSEM sensor readings after/before the upgrade.
The expected factor is 8.64, although we |
|