| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
613
|
Tue Jul 1 12:51:34 2008 |
John | Summary | General | IFO alignment | Rana, Rob, Yoichi, John
The recent computer problems and MZ work |
|
|
612
|
Tue Jul 1 12:08:38 2008 |
John, Joe | Configuration | PSL | PMC input PD | Joe and I switched cables so that the PMCR
screen actually shows reflection not transmission.
|
|
|
611
|
Tue Jul 1 11:57:24 2008 |
Yoichi | Configuration | PSL | MZ servo switch problem again | C1:PSL-MZ_BLANK switch (to turn on/off the
servo) is not working again. The switch is
always off regardless of the epics state.
|
|
|
610
|
Tue Jul 1 11:53:38 2008 |
Yoichi | Update | Computers | RFM network back | I took a tour of the FE machines and power
cycled all of them.
After executing the software restart procedures |
|
|
609
|
Tue Jul 1 10:15:22 2008 |
steve | Update | PSL | eventfull two days | The laser recovered from a short temp rise.
The MZ was aligned and realigned. The suspentions
were kicked up accidentally.
|
|
|
608
|
Tue Jul 1 09:26:33 2008 |
steve | Update | Computers | RFM network is down | |
|
|
607
|
Mon Jun 30 18:36:01 2008 |
Yoichi | Update | PSL | MZ alignment again | John, Yoichi
We re-adjusted the MZ alignment. The reason |
|
|
606
|
Mon Jun 30 16:00:02 2008 |
josephb, sam | Configuration | Computers | | Sam and I setup Cat6 cable from Megatron to
the 1Y6 Switch (131.215.113.252) and also
connected the 1Y6 Hub to the control room |
|
|
605
|
Mon Jun 30 15:56:22 2008 |
Jenne | Update | Electronics | Fixing the LO demod signal | To make the alarm handler happy, at Rana and
John's suggestion I replaced R14 of the MC's
Demod board, changing it from 4.99 Ohms to |
|
|
604
|
Mon Jun 30 15:08:52 2008 |
John | Summary | PSL | MZ alignment | I adjusted the alignmnet of the Mach-Zehnder's
two North mirrors (downstream of the EOMs).
|
|
|
603
|
Mon Jun 30 14:07:26 2008 |
Rob | Configuration | PSL | Don't put the bin in front of the air conditioning unit | [quote]We spotted that the laser power was
dropping.
[/quote]
|
|
|
602
|
Mon Jun 30 13:48:47 2008 |
John, Rob | Configuration | PSL | Don't put the bin in front of the air conditioning unit | We spotted that the laser power was dropping.
[SIZE=5][COLOR=blue][FONT=Verdana]The air |
|
|
601
|
Mon Jun 30 09:46:15 2008 |
John | Update | IOO | MC WFS | MC WFS are on. They seem to do some good during
the day. |
|
|
600
|
Mon Jun 30 08:59:23 2008 |
steve | Update | IOO | IOO-MC_DEMOD_LO is low | The alarm handler is beeping relentlessly:
asking for help in high partical count and
low demod signal |
|
|
599
|
Mon Jun 30 05:33:38 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Optical setup (II) | o The position of the iris was adjusted so
as not to disturub the beam for OMCR CCD.
|
|
|
598
|
Mon Jun 30 01:49:06 2008 |
John | Update | IOO | MC work | I'm in the process of aligning the mode cleaner/
input beam.
|
|
|
597
|
Sun Jun 29 20:29:48 2008 |
rana | Update | PSL | Correlation of PSL SLOW control v. Room temperature | |
|
|
596
|
Sun Jun 29 20:09:40 2008 |
John | Summary | IOO | mcup and mcdown indicators | I edited the mcup and mcdown scripts so that
C1IFO_STATE shows when these scripts are
running.
|
|
|
595
|
Sun Jun 29 19:53:26 2008 |
John | Summary | PSL | ISS | [quote]I reduced the gain of the ISS (C1:
PSL-ISS_VGAGAIN) from 5dB to 2dB. Any higher
and it constantly saturates.[/quote]
|
|
|
594
|
Sun Jun 29 19:19:47 2008 |
rana | Summary | IOO | Trends of the PSL/IOO Quads over 1000 days | Only IOO POS has been working for the past
2 years. I guess we should recommission the
IOO ANG and REFL QPDs |
|
|
593
|
Sun Jun 29 18:58:43 2008 |
rana | Summary | Computers | 1e20 is too big for AWG and/or IOVME | While testing out my matlab/awgstream based
McWFS diagnostic script I accidentally put
a
|
|
|
592
|
Sun Jun 29 14:53:02 2008 |
rob | Update | Computers | Rebooting | [quote]All of the computers are now showing
green lights.
|
|
|
591
|
Sun Jun 29 11:31:52 2008 |
John | Summary | PSL | ISS | I reduced the gain of the ISS (C1: PSL-ISS_VGAGAIN)
from 5dB to 2dB. Any higher and it constantly
saturates. |
|
|
590
|
Sun Jun 29 02:33:28 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Optical setup (I) | I have constructed the beam injection optics
for the abs length measurement.
|
|
|
589
|
Sat Jun 28 23:23:50 2008 |
John | Update | Computers | Rebooting | All of the computers are now showing green
lights.
|
|
|
588
|
Sat Jun 28 14:56:44 2008 |
John | Update | Computers | ini files | In short, I was editing the ini files yesterday
evening, I didn't e-log it and after some
investigation this afternoon it apears
|
|
|
587
|
Sat Jun 28 03:10:25 2008 |
rob | Update | Computers | c1iovme | [quote]C1susvme2 and C1iovme crashed which
sent the optics swinging and tripped the
watchdogs.
|
|
|
586
|
Fri Jun 27 19:59:44 2008 |
John | Update | Computers | c1iovme | C1susvme2 and C1iovme crashed which sent the
optics swinging and tripped the watchdogs.
|
|
|
585
|
Fri Jun 27 18:21:01 2008 |
Jenne | Update | Electronics | Response of the LO input on the MC demod board | The alarm handler has been flipping out saying
that the LO input of the MC's demod board
is too low, so at Rana's suggestion, Eric |
|
|
584
|
Fri Jun 27 18:03:46 2008 |
Jenne | Update | Electronics | Another bad cable in the MC servo | Eric was helping me to measure the response
of the LO input on the MC's Demod board,
and when we disconnected the end of the cable |
|
|
583
|
Fri Jun 27 15:20:52 2008 |
rob | DAQ | LSC | .ini file change |
I removed C1:LSC-XARM_CTRL from the frames
and added C1:LSC-CARM_ERR |
|
|
582
|
Fri Jun 27 14:36:39 2008 |
John | Summary | Locking | | Rob, Yoichi, John
Some progress last night:
|
|
|
581
|
Fri Jun 27 09:20:15 2008 |
steve | Frogs | PEM | dust particle count is up & alarm handler is on | This 3 years plot show the trend of seasons.
When outside air quality goes bad ( 0.5 micron
> 1 million ) the lab follows.
|
|
|
580
|
Thu Jun 26 22:08:33 2008 |
Jenne | Update | Electronics | 3.7MHz bandstop filter in MC Servo | The 3.7MHz elliptical bandstop filter that
I made during my SURF summer is now installed
in the MC servo loop to reduce the noise |
|
|
579
|
Thu Jun 26 21:07:11 2008 |
rana | Configuration | ASS | dust & MC1 | I realized today, that yesterday while we
were trying to debug the adaptive noise canceler,
I turned
|
|
|
578
|
Thu Jun 26 20:59:22 2008 |
rana | Update | Computer Scripts / Programs | Alarm Handler | [COLOR=red][SIZE=5][B]Please do not turn off
the Alarm Handler on op540m.[/B][/SIZE][/COLOR] |
|
|
577
|
Thu Jun 26 18:29:44 2008 |
Jenne | Update | | MC Back online | Jenne, Rob, Yoichi
I was playing with the Mode Cleaner earlier |
|
|
576
|
Thu Jun 26 18:27:04 2008 |
rana | Update | Computer Scripts / Programs | No Dataviewer No Cry | Dataviewer was hanging. It would open the
Grace window but then not plot anything.
Since DTT was working
|
|
|
575
|
Thu Jun 26 18:24:28 2008 |
Yoichi | Update | PSL | FSS input ofset slider problem - fixed | I checked the FSS servo interface board and
found that a LT1125CSW used to differentialize
offset channel was broken (no virtual short).
|
|
|
574
|
Thu Jun 26 14:06:00 2008 |
Masha | Update | General | 500mW INNOLIGHT NPRO info | Below is the placement of 500mW INNOLIGHT
NPRO mephisto laser. It is set up on the
Symmetric Port table. [IMG]elog:574/1[/IMG] |
|
|
573
|
Thu Jun 26 12:30:40 2008 |
John | Summary | Locking | CARM on REFL_DC | [COLOR=blue]Idea:[/COLOR]
Try REFL_DC as the error signal for CARM |
|
|
572
|
Thu Jun 26 10:56:15 2008 |
Max Jones | Update | PEM | Removed Magnetometer | I removed the Bartington Magnetometer on the
x arm to one of the outside benches. I'll
be trying to determine if and how it works |
|
|
571
|
Thu Jun 26 01:10:18 2008 |
rana | Update | PEM | Alarm Handler indicates that dust level is high | [I]In its first useful act[/I], the Alarm
Handler started beeping indicating that the
[COLOR=purple]dust particle
|
|
|
570
|
Thu Jun 26 01:08:22 2008 |
rana | Configuration | General | Alarm Handler Revived | I have revived the Alarm Handler by turning
it on on op540m and adjusting the levels
of
|
|
|
569
|
Wed Jun 25 18:03:21 2008 |
Yoichi | Configuration | PSL | FSS Input Offset slider problem | While working on the PMC scanning, I noticed
that the FSS input offset slider is doing
nothing.
|
|
|
568
|
Wed Jun 25 13:56:56 2008 |
John | Summary | Locking | Tuesday night locking | Rob, John
Worked to try and reduce the CARM offset |
|
|
567
|
Wed Jun 25 13:38:22 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Placement of the 700mW NPRO on the AP table | This morning I have put the 700mW NPRO on
the AP table for the abs length measurement.
|
|
|
566
|
Wed Jun 25 12:25:28 2008 |
Eric | Summary | Cameras | 2D Gaussian Fitting Code | I initially wrote a script in MATLAB that
takes pictures of the laser beam's profile
and fits them to a two dimensional gaussian |
|
|
565
|
Wed Jun 25 11:36:14 2008 |
Max Jones | Update | Computer Scripts / Programs | First Week Update | For the first week I have been modifying the
noise budget script in caltech/NB to run
with 40 m parameters and data. As per Rana's |
|
|
564
|
Wed Jun 25 11:01:45 2008 |
Masha | Update | Auxiliary locking | fiber stabilization | For the first week, I have been learning about
fiber noise cancellation, auxiliary locking
techniques, and other relevant helpful topics |
|