| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
8859
|
Tue Jul 16 17:02:41 2013 |
Alex Cole | Configuration | Electronics | AS Table Additions | [Eric, Alex]
We added our reference photodetector
(Newport 1611, REF DET) to the southern edge |
|
|
8858
|
Tue Jul 16 15:22:27 2013 |
manasa | Update | CDS | Front ends back up | c1sus, c1ioo, c1iscex and c1iscey were
down. Why? I was trying to lock the arm and
I found that around this time, several computers |
|
|
8857
|
Tue Jul 16 14:51:09 2013 |
gautam | Configuration | endtable upgrade | AI Board-D000186-Modified notches | I tried shifting the notch frequencies
on the D000186-revision D board given to
me by Koji. The existing notches were at |
|
|
8856
|
Tue Jul 16 13:48:26 2013 |
Steve | Update | PEM | cranes cleaned | Keven and Steve,
The 3 cranes tested and wiped
off as preparation for upcoming vent. |
|
|
8855
|
Tue Jul 16 10:16:23 2013 |
Koji | Update | | Beatbox XARM whitening modified | The
X arm whitening filters of the beatbox were
modified. |
|
|
8854
|
Tue Jul 16 01:17:21 2013 |
Jenne | Update | ASC | POP QPD calibration attempt | [Rana, Jenne]
I took POP QPD calibration data with
a new method, on Rana's suggestion. |
|
|
8853
|
Mon Jul 15 17:59:31 2013 |
gautam | Configuration | endtable upgrade | DAC at 1Y4- Power Spectrum -6.4kHz bandwidth |
|
|
|
8852
|
Mon Jul 15 17:20:43 2013 |
Jenne | Configuration | endtable upgrade | DAC at 1Y4- Power Spectrum -with the right units | Those 'peaks' for the oscillations seem
ridiculously broad. I think you should
look again, really quickly, with smaller |
|
|
8851
|
Mon Jul 15 17:16:59 2013 |
Jenne | Update | ASC | POP QPD calibration attempt | I tried to retake POP QPD calibration data
again today. The MC was mostly fine,
but whenever the PRMI unlocked, both ITM |
|
|
8850
|
Mon Jul 15 16:51:37 2013 |
Alex | Configuration | | Planned AS Table addition | [Eric, Alex]
We are planning to add our reference
PD to the southern third of the AS Table |
|
|
8849
|
Mon Jul 15 16:44:46 2013 |
Alex | Update | OMC | OMC North Safety | [Eric Alex]
We are planning on testing our laser
module soon, so we have added aluminum foil |
|
|
8848
|
Mon Jul 15 15:54:20 2013 |
gautam | Configuration | endtable upgrade | DAC at 1Y4- Power Spectrum -with the right units |
|
|
|
8847
|
Mon Jul 15 14:12:15 2013 |
Steve | Update | VAC | RGA scan at day 144 | Pumpdown 75, vacuum normal condition
at day 144
|
|
|
8846
|
Mon Jul 15 13:51:17 2013 |
Koji | Configuration | endtable upgrade | DAC at 1Y4-Max Output and Power Spectrum | We need the unit of the voltage power spectrum
density to be V/sqrt(Hz). |
|
|
8845
|
Mon Jul 15 11:51:18 2013 |
gautam | Configuration | endtable upgrade | DAC at 1Y4-Max Output and Power Spectrum | Summary:
I measured the maximum output of
the DAC at 1Y4 as well as its power spectrum. |
|
|
8844
|
Sun Jul 14 18:19:00 2013 |
Annalisa | Update | Green Locking | Arm cavity scan | Yesterday evening Nic and me were in the
lab. The Mode Cleaner was unlocked, but after
many attempt we could fix it and we did many |
|
|
8843
|
Sun Jul 14 17:47:28 2013 |
Koji | Update | IOO | MC WFS maintenance | Annalisa notified me that the MC autolocker
could not keep the MC locked.
I found the initial alignment was |
|
|
8842
|
Sat Jul 13 03:27:20 2013 |
Annalisa | Update | Green Locking | Y arm caity scan | I started doing a scan of the Y arm cavity
with IR with ALS enabled.
ALS |
|
|
8841
|
Fri Jul 12 23:13:32 2013 |
manasa | Update | Green Locking | ALS sensor noise | [Annalisa, Koji, Manasa]
In order to improve the ALS stability |
|
|
8840
|
Fri Jul 12 21:23:42 2013 |
Jenne | Update | ASC | POP QPD calibration attempt | These are the data, one plot for when the
vertical QPD position was changed, and one
for when the horizontal (yaw) QPD position |
|
|
8839
|
Fri Jul 12 18:30:20 2013 |
Charles | Update | ISS | RMS Noise from PMC Transmission |
|
|
|
8838
|
Fri Jul 12 13:15:43 2013 |
Koji | Update | ISS | RMS Noise from PMC Transmission | It would be better to measure the power
spectrum density of the fluctuation.
The RMS does not tell enough information |
|
|
8837
|
Fri Jul 12 12:51:16 2013 |
manasa | Update | LSC | PRMI + ALS automation |
|
|
|
8836
|
Fri Jul 12 12:51:13 2013 |
Charles | Update | ISS | RMS Noise from PMC Transmission | I went out on the floor to look at the
transmitted signal from the PMC to get a
rough idea of the noise of the unstabilized |
|
|
8835
|
Fri Jul 12 12:30:47 2013 |
manasa | Update | General | Halogen illumination cables disconnected |
|
|
|
8834
|
Fri Jul 12 09:00:10 2013 |
Steve | Update | General | Halogen illumination cables disconnected | Alex and Steve,
Old halogen chamber illuminator cabling
disconnected and potenciometer board removed |
|
|
8833
|
Fri Jul 12 00:12:41 2013 |
Koji | Update | LSC | PRMI + Y arm trial | [Koji, Manasa, Annalisa]
I made several trials to scan the
arm on the IR TEM00 resonance while the PRMI |
|
|
8832
|
Thu Jul 11 23:50:57 2013 |
gautam | Configuration | | PZT Driver Board-changes made | Summary:
|
|
|
8831
|
Thu Jul 11 14:38:38 2013 |
Annalisa | Update | Green Locking | Y arm cavity scan | Yesterday I did a cavity scan with IR while
holding the Yarm with green.
ALS |
|
|
8830
|
Thu Jul 11 13:52:51 2013 |
Charles | Update | ISS | RMS threshold detection and triggering | There are essentially two major portions
of the ISS I am designing. One system has
the voltage reference, differential amplifier |
|
|
8829
|
Thu Jul 11 12:00:50 2013 |
Alex | Update | | Planned rack additions | [Eric, Alex]
We mounted our Laser Module and Laser
Power Source in rack 1y1. We plan to add |
|
|
8828
|
Thu Jul 11 09:24:03 2013 |
Steve | Update | General | there should be nothing left on optable tops | There are 4 oscilloscopes left on the AP
optical table top.... It's only 25 lbs...
|
|
|
8827
|
Thu Jul 11 09:15:10 2013 |
Steve | Update | endtable upgrade | ETMY optable grounded | ETMY optical table top was grounded to
the ETMY chamber through 1 Mohms this morning.
I also strain releifed |
|
|
8826
|
Thu Jul 11 07:34:42 2013 |
manasa | Update | LSC | Yarm held nicely on IR resonance with ALS, PRMI+arm attempt |
|
|
|
8825
|
Thu Jul 11 03:14:19 2013 |
Jenne | Update | LSC | Yarm held nicely on IR resonance with ALS, PRMI+arm attempt | [Annalisa, Jenne, Nic]
After having troubles with the Xarm
earlier (maybe Manasa can write/say something |
|
|
8824
|
Thu Jul 11 00:30:27 2013 |
manasa | Update | Green Locking | X arm ALS post-beatbox makeover | I ran a series of diagnostics on the X
arm ALS to look at how the beatbox behaves
after the makeover. |
|
|
8823
|
Wed Jul 10 22:41:06 2013 |
gautam | Configuration | endtable upgrade | PZT Driver Board | I
did the following with the |
|
|
8822
|
Wed Jul 10 14:49:00 2013 |
Steve | Update | Green Locking | more fiber protective tubing layed |
|
|
|
8821
|
Wed Jul 10 11:44:02 2013 |
Annalisa | Update | Green Locking | Y beat note found! | I found the beat note for the Y arm. Nothing
was changed with respect to yesterday night,
but the beat is back! |
|
|
8820
|
Wed Jul 10 11:27:02 2013 |
manasa | Update | Green Locking | X arm beatnote found | I found the beat note for X arm. I did
not change anything this morning (to the
best of my knowledge). Hooking up the spectrum |
|
|
8819
|
Wed Jul 10 02:28:04 2013 |
Annalisa | Update | Green Locking | Beat notes lost! | [Manasa, Jenne, Annalisa]
I was going to find the beat note
to start the cavity scan, but I couldn't. |
|
|
8818
|
Wed Jul 10 02:10:41 2013 |
manasa | Update | Green Locking | Beatbox gets a makeover |
|
|
|
8817
|
Wed Jul 10 01:27:44 2013 |
gautam | Update | Green Locking | Y-end Green PDH open-loop transfer function | [Annalisa, gautam]
Summary:
We have measured the open-loop transfer |
|
|
8816
|
Tue Jul 9 23:27:17 2013 |
Koji | Summary | LSC | MICH: ITMX/Y <=> PRM/BS | The MICH actuation with PRM/BS was investigated
again.
(ITMX -1 / ITMY +1) is equivalent |
|
|
8815
|
Tue Jul 9 20:09:53 2013 |
Koji | Update | IOO | WFS debugging | The low UGFs of the MC WFS servos made
the MC insane thesedays:
The servos are too slow and we kept |
|
|
8814
|
Tue Jul 9 18:44:37 2013 |
gautam | Update | CDS | DAC Interface Board-Pin Outs | Summary:
The pin-outs for the DAC interface
board have been determined. |
|
|
8813
|
Tue Jul 9 17:03:06 2013 |
Steve | Update | Green Locking | fiber layed for Y arm | Alex, Gautam and Steve,
Single
mode fiber 50m long is layed out into |
|
|
8812
|
Tue Jul 9 16:08:32 2013 |
Jenne | Update | ASC | POP QPD calibration attempt | [Jenne, Alex]
Calibration data for the POP QPD
has been taken, with the PRMI locked on sideband |
|
|
8811
|
Tue Jul 9 12:01:20 2013 |
gautam | Update | CDS | set up for testing DAC Interface-board pin outs |
Jenne just rebooted c1scy and
daqd on the framebuilder. We will do the |
|
|
8810
|
Tue Jul 9 11:41:22 2013 |
Jenne | Update | ASC | POP QPD calibration attempt | I was bad, and forgot to elog the most
important part of my work yesterday - that
I had rotated the POP QPD by 90 degrees, |
|