| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
17108
|
Fri Aug 26 14:05:09 2022 |
Tega | Update | Computers | rack reshuffle proposal for CDS upgrade | [Tega, Jamie]
Here is a proposal for what we
would like to do in terms of reshuffling |
6x |
|
17109
|
Sun Aug 28 23:14:22 2022 |
Jamie | Update | Computers | rack reshuffle proposal for CDS upgrade | @tega This looks great, thank you for putting
this together. The rack drawing in
particular is great. Two notes: |
|
|
2064
|
Wed Oct 7 11:18:40 2009 |
kiwamu | Summary | Electronics | racks of electronics |
I took the pictures of all racks
of electronics yesterday, and then uploaded |
|
|
4290
|
Mon Feb 14 17:16:47 2011 |
steve | Update | General | racks, breakers labeled | The south arm labels were changed from
y to x to reflect reality.
So racks, manual disconnects and |
|
|
70
|
Tue Nov 6 15:37:34 2007 |
rob | Configuration | SUS | rampdown script | /cvs/cds/caltech/scripts/SUS/rampdown.pl is
now in the crontab for op340m, running every
half-hour at 15&45. It checks the suspension |
|
|
4100
|
Sat Jan 1 16:36:16 2011 |
rana | Configuration | SUS | rampdown.pl was not running | The
crontab for op340m which runs various IFO
maintenance activities has been set to the |
|
|
4871
|
Thu Jun 23 22:53:02 2011 |
kiwamu | Update | CDS | ran activateDQ.py | I found some DQ channels (e.g. SENSOE_UL
and etc.) for C1SUS haven't been activated,
so I ran activateDQ.py. |
|
|
1897
|
Thu Aug 13 09:22:06 2009 |
rana | Update | PEM | ranger | Rana, Jan, Jenne
We noticed that the Ranger data was
all bogus at low frequencies. So we checked |
|
|
12629
|
Mon Nov 21 11:30:01 2016 |
Steve | Update | PEM | rat is cut and removed | Last jump at rack Y2. |
|
|
2838
|
Sat Apr 24 15:50:47 2010 |
Koji | Update | PSL | re: 2W Vertical Beam Profile | 1. The vertical axis should start from
zero. The horizontal axis should be extended
so that it includes the waist. See Zach's |
|
|
2846
|
Mon Apr 26 16:51:37 2010 |
Kevin | Update | PSL | re: 2W Vertical Beam Profile | I tried Koji's suggestions for improving
the fit to the vertical beam profile; however,
I could not improve the uncertainties in |
|
|
2847
|
Mon Apr 26 17:34:31 2010 |
Koji | Update | PSL | re: 2W Vertical Beam Profile | Give me the plot of the fit, otherwise
I am not convinced.
|
|
|
2851
|
Tue Apr 27 15:29:16 2010 |
Kevin | Update | PSL | re: 2W Vertical Beam Profile | I thought that the micrometer I was using
to move the razor through the laser beam
was metric; however, it is actually english. |
|
|
2857
|
Wed Apr 28 14:22:36 2010 |
Kevin | Update | PSL | re: 2W Vertical Beam Profile | I used the Mathematica CurveFit package
that we use in Ph6/7 to make the fits for
the beam profile data. I wrote two functions |
|
|
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). |
|
|
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 |
|
|
11080
|
Thu Feb 26 20:02:46 2015 |
Jenne | Update | LSC | re: some thoughts | I have clarified my elog from last night
to indicate that the sensing matrix in the
"33MHz cancellation" configuration |
|
|
9305
|
Mon Oct 28 18:57:27 2013 |
Masayuki | HowTo | LSC | read 'scope and spectrum analyser datas |
The
command to get the data from spectrum analyzer |
|
|
7487
|
Fri Oct 5 00:29:34 2012 |
Den | Update | PEM | readout box power | Guralp readout box received +13.7 /0/ -15V
instead +15V because of the broken fuse.
Power provided by the source is normal. |
|
|
7490
|
Fri Oct 5 11:11:00 2012 |
Den | Update | PEM | readout box power |
|
|
|
4710
|
Fri May 13 01:42:35 2011 |
kiwamu | Update | LSC | ready for Schnupp asymmetry measurement | [Valera / Kiwamu]
We are able to lock each arm |
|
|
6357
|
Mon Mar 5 17:07:58 2012 |
kiwamu | Update | IOO | realigned MC | I
have slightly shifted the MC beam pointing
to relax the PZT1 PITCH. As a result the |
|
|
3923
|
Mon Nov 15 15:01:51 2010 |
kiwamu | Update | IOO | realigned the wideband EOM | Since we are going to lock the MC today,
I
aligned it back to the default place. |
|
|
16650
|
Mon Feb 7 16:14:37 2022 |
Tega | Update | Computers | realtime system reboot problem | I was looking into plotting temperature
sensor data trend and why we currently do
not have frame data written to file (on /frames) |
|
|
2619
|
Fri Feb 19 16:40:43 2010 |
kiwamu | Update | Green Locking | rearrange the optics on the end table | Koji and kiwamu
The existing |
|
|
6145
|
Thu Dec 22 19:15:22 2011 |
kiwamu | Update | Green Locking | rearrangement of PSL green optics | As
planed (#6143 |
|
|
6147
|
Fri Dec 23 01:07:41 2011 |
kiwamu | Update | Green Locking | rearrangement of PSL green optics part II | After
I did a fine alignment of the X green beam
path on the PSL table, the X arm beat-note |
|
|
10576
|
Tue Oct 7 16:17:15 2014 |
Steve | Update | General | reason for 8 sec power outage |
|
|
|
9668
|
Tue Feb 25 00:00:01 2014 |
rana, jenne | Update | LSC | reasons that the REFL signals may be degenerate now | We're exploring some effects which may
give some funny macroscopic detuning and
cause a near phase degeneracy in the REFL |
|
|
4023
|
Tue Dec 7 19:34:58 2010 |
kiwamu | Update | CDS | rebooted DAQ and all the front end machines | I
found that all the front end machine showed
the red light indicators of DAQ on the XXX_GDS_TP.adl |
|
|
4393
|
Wed Mar 9 23:19:04 2011 |
kiwamu | Update | CDS | rebooted c1ioo | For
some reason the c1ioo machine suddenly died
just 30 miteus before. |
|
|
10989
|
Mon Feb 9 08:40:49 2015 |
Steve | Update | SUS | recent earthquake 4.9 | Baja 4.9 m earth quake tripped suspentions,
except ETMX Sus damping recovered. MC is
locking. |
|
|
10850
|
Sun Jan 4 12:49:18 2015 |
Steve | Update | SUS | recent earthquakes | All suspensions were tripped. Damping were
restored. No obvious sign of damage. BS OSEM-UR
may be sticking ? |
|
|
10846
|
Mon Dec 29 21:30:25 2014 |
rana | Update | General | recovery |
Control room is at +66 F. Brrrr.
Alignment of input beam into the IMC
was wacky; locked on HOM.
Re-aligned |
|
|
9760
|
Fri Mar 28 22:10:00 2014 |
rana, koji | Update | SUS | recovery from | * EQ Southeast of LA around 45 minutes
ago. Callum and I felt it.
|
|
|
9763
|
Mon Mar 31 08:11:00 2014 |
Steve | Update | SUS | recovery from earthquakes |
|
|
|
5963
|
Sun Nov 20 14:48:55 2011 |
kiwamu | Update | General | recovery from the power shutdown | Recovery
from the power shutdown
- Turned on the raid disk of |
|
|
5965
|
Sun Nov 20 15:33:37 2011 |
rana | Update | General | recovery from the power shutdown | restarted Apache on Nodus for the
SVN as per wiki instructions |
|
|
848
|
Mon Aug 18 17:37:14 2008 |
rob | Update | Locking | recovery progress |
I removed the beam block after the PSL periscope
and opened the PSL shutter.
|
|
|
7720
|
Sat Nov 17 03:30:13 2012 |
Den, Ayaka | Update | Alignment | red in arms | We aligned accurately 00 green in yarm,
changed voltage on PZT2 to see red flashing
at TRY at the normalized level 0.2-0.3. The |
|
|
7721
|
Sat Nov 17 18:02:14 2012 |
Den | Update | Alignment | red in arms |
|
|
|
7722
|
Sat Nov 17 22:50:17 2012 |
Koji | Update | Alignment | red in arms | You have constraints for the IR beams (i.e.
one PZT and one BS for 8 dofs), so now you
need to align the arms for the input IR beams. |
|
|
7730
|
Tue Nov 20 02:57:24 2012 |
Ayaka, Den, Koji | Update | Locking | red in arms | We aligned and locked x and y arms.
MCL loop makes arms lock unstable,
adds a lot of noise at frequencies 60-100 |
8x |
|
13129
|
Fri Jul 21 08:05:07 2017 |
Steve | Summary | SUS | red, blue, green laser diodes ordered | Also ordered 1 ea.
Blue
20mW |
|
|
3876
|
Sat Nov 6 07:26:54 2010 |
yuta | Summary | IOO | reduced common mode displacement of the beam through MC1 to MC3 | (Koji, Suresh, Yuta)
Summary: |
|
|
13213
|
Wed Aug 16 14:57:01 2017 |
Steve | Update | PSL | ref Cavity heating blanket power supply | The last entry I found relating to ref
cavity was
2011 Aug 19 |
|
|
3272
|
Fri Jul 23 08:15:59 2010 |
steve | Update | PSL | ref cavity ion pump | The ref cavity ion pump was running at
7.7kV instead of 5kV
This Digitel SPC-1 20 l/s ion pump |
|
|
6753
|
Tue Jun 5 09:44:14 2012 |
steve | Update | PSL | ref cavity ion pump must be pumped |
|
|
|
1943
|
Tue Aug 25 18:42:42 2009 |
steve | Update | PSL | reference cavity temp box temporarly out of order |
|
|
|
1945
|
Tue Aug 25 21:36:28 2009 |
Alberto | Update | PSL | reference cavity temp box temporarly out of order |
Is that the reason of the PSL
craziness tonight? See attachment. |
|