| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
7433
|
Mon Sep 24 17:03:39 2012 |
Jenne | Update | PEM | 1X1 rack power |
|
|
|
7432
|
Mon Sep 24 16:59:31 2012 |
Jenne | Update | VAC | Doors on, ready to pump | [The 40m Family]
The access connector and all heavy
doors are back on. |
|
|
7431
|
Mon Sep 24 10:27:50 2012 |
Steve | Omnistructure | General | do not leave stuff on optical table tops | The SP table was found open this morning.
Please, do not make optics dirty! |
|
|
7430
|
Sun Sep 23 22:40:48 2012 |
Den | Update | Modern Control | MC_L locking | I've applied LQR approach to MC_L locking.
Results show that LQR does not make MC_F
signal smaller below 0.3 Hz in contrast with |
|
|
7429
|
Sat Sep 22 01:03:30 2012 |
Den | Update | PEM | ETMY table | I've installed Guralp readout box back
and it turned out that it does not work with
voltage provided from the rack (+13.76 0 |
|
|
7428
|
Fri Sep 21 22:43:51 2012 |
Den | Update | SUS | TT alignment | I did TT alignment using red laser and
QPD.
|
6x |
|
7427
|
Fri Sep 21 22:25:44 2012 |
Mike J. | Update | General | POX, POY, PR2 pics | Unaltered PR2 images, with IR card, without
card, and steering mirror:
|
10x |
|
7426
|
Fri Sep 21 20:48:24 2012 |
Jenne | Update | General | POP in-vac optics aligned, POY beam coming out of vac | Getting POP:
We put a green laser pointer at ~4
inches on the POX table, and steered it using |
|
|
7425
|
Fri Sep 21 12:12:56 2012 |
Manasa | Configuration | PSL | AOM installation | {Jan, Manasa}
We installed the AOM driver back
on the PSL table this morning. To calibrate |
|
|
7424
|
Thu Sep 20 22:52:38 2012 |
Den | Update | MachineLearning | Feedback controller |
|
|
|
7423
|
Thu Sep 20 20:07:38 2012 |
Jenne | Update | General | REFL, IPANG are coming out of the vac |
|
|
|
7422
|
Thu Sep 20 19:56:05 2012 |
Jenne | Update | General | Pickoffs are hard to see |
|
|
|
7421
|
Thu Sep 20 17:05:26 2012 |
Jenne | Update | General | REFL, IPANG are coming out of the vac | [Jenne, Unni, Manasa]
I touched some in-vac steering mirrors,
so we have REFL and IPANG coming out of the |
|
|
7420
|
Thu Sep 20 14:55:06 2012 |
Jenne | Update | General | Pickoffs are hard to see |
|
|
|
7419
|
Thu Sep 20 11:39:40 2012 |
Manasa | Update | General | DRMI aligned again, but with good arms |
QPD at IPPOS has been centered
by removing the filter at the QPD. |
|
|
7418
|
Thu Sep 20 08:50:14 2012 |
Masha | Update | MachineLearning | Machine Learning Update | Hi everyone,
I've been working a bit on neural
network code for a controller, and thus far |
|
|
7417
|
Thu Sep 20 08:34:46 2012 |
Manasa | Update | General | DRMI aligned again, but with good arms |
|
|
|
7416
|
Thu Sep 20 01:29:04 2012 |
Manasa | Configuration | PSL | AOM installation |
|
|
|
7415
|
Thu Sep 20 01:28:14 2012 |
Jenne | Update | General | DRMI aligned again, but with good arms | [Jenne, Manasa]
Using the alignment of the PZTs and
BS from pre-dinner, where the beam was hitting |
|
|
7414
|
Wed Sep 19 23:17:25 2012 |
rana | Configuration | PSL | AOM installation | Mannasa and Unni and I looked at the
RF driver for the AOM. It was fine.
With the ALC input left unconnected, |
|
|
7413
|
Wed Sep 19 19:38:37 2012 |
Jenne | Update | General | Spot centered on BS, ETMY, ETMX | [Unni, Manasa, Jenne]
It turned out that the beam was a
teeny bit high in the corner, so we touched |
|
|
7412
|
Wed Sep 19 17:48:47 2012 |
Den | Update | Modern Control | ETMX | Time domain control using LQR technique
is now applied to ETMX sus position. The
plan was to do it for oplevs, I'll do it |
|
|
7411
|
Wed Sep 19 15:41:27 2012 |
Manasa | Configuration | PSL | AOM installation |
AOM driver has been removed
from the PSL table for testing. However the |
|
|
7410
|
Wed Sep 19 13:12:48 2012 |
Jenne | Update | IOO | Power into vacuum increased to 75mW | The power buildup in the MC is ~400, so
100mW of incident power would give about
40W circulating in the mode cleaner. |
|
|
7409
|
Wed Sep 19 11:39:37 2012 |
Manasa | Configuration | PSL | AOM installation |
|
|
|
7408
|
Wed Sep 19 09:32:24 2012 |
Steve | Update | SUS | alignment centering jig | SOS alignment tool with ID 9.5 and 6.3
mm |
|
|
7407
|
Wed Sep 19 09:24:01 2012 |
Steve | Omnistructure | IOO | access connector at athmoshere |
|
|
|
7406
|
Wed Sep 19 01:15:15 2012 |
Jenne | Update | General | Last of In-vac mirror photos taken - NOT! | I'm making a separate entry to go along
with this thread of photos...
Putting the camera and 'bathroom' |
|
|
7405
|
Wed Sep 19 01:08:48 2012 |
Jenne | Update | General | DRMI aligned again | The DRMI was aligned once again tonight.
Here's a video: http://youtu.be/Cy8nHL9yMeM
(Can someone please tell me / remind me how |
|
|
7404
|
Tue Sep 18 22:06:21 2012 |
Mike J. | Update | Electronics | AS beam scan plots and chi-squared | Results of the Razor Blade Beam Scan
The horizontal blade test measured
the beam intensity as a razor blade passed |
|
|
7403
|
Tue Sep 18 20:32:42 2012 |
Manasa | Configuration | PSL | AOM installation | {Jan, Manasa}
We tried towards calibrating the
RF driver of the AOM. We decided to use the |
|
|
7402
|
Tue Sep 18 18:24:50 2012 |
Jenne | Update | General | Scattering in BS chamber or ITMX chamber | I have touched PZT2 such that the beam
goes through the 45 degree non-iris target
on the beam splitter. This puts the |
|
|
7401
|
Tue Sep 18 11:53:12 2012 |
Jenne | Update | General | Last of In-vac mirror photos taken |
|
|
|
7400
|
Mon Sep 17 23:58:01 2012 |
rana | Update | General | Last of In-vac mirror photos taken | My hope is that the DRMI flashes
will be bright enough to see on the PO beams.
IF we get 10 mW through the Faraday, you |
|
|
7399
|
Mon Sep 17 20:23:31 2012 |
Jenne | Update | General | Last of In-vac mirror photos taken | [Manasa, Jenne]
We took the last of the in-vac photos
of mirrors today. I'll post in the |
|
|
7398
|
Mon Sep 17 18:04:01 2012 |
Steve | Update | COC | 2 Layout Changes |
|
|
|
7397
|
Mon Sep 17 13:39:32 2012 |
Jenne | Update | General | More photos taken |
|
|
|
7396
|
Mon Sep 17 07:57:58 2012 |
rana | Update | PEM | BS and AS tables for REFL change |
This was in response to my
suggestion to move the REFL beam path to |
|
|
7395
|
Sat Sep 15 20:27:54 2012 |
Den | Update | PEM | BS and AS tables |
|
|
|
7394
|
Sat Sep 15 18:46:50 2012 |
Den | Update | PEM | microphone location | I've suspended microphones around the lab
C1:PEM-MIC_1 - MC2
C1:PEM-MIC_2
- ETMX
C1:PEM-MIC_3 - PSL
C1:PEM-MIC_4 |
|
|
7393
|
Sat Sep 15 18:29:25 2012 |
Jenne | Update | General | More photos taken | {EricQ, Jenne]
More photos were taken. Will
post Monday, because too hungry now. |
|
|
7392
|
Fri Sep 14 21:03:02 2012 |
Den | Update | PEM | BS and AS tables | I've measured seismic and acoustic noise
on BS and AS tables. It seems that horizontal
motion of BS table is ~1.5-2 times more then |
|
|
7391
|
Fri Sep 14 18:28:25 2012 |
Jenne | Update | General | In Vac Pictures | All the photos so far:
PZT1:
|
|
|
7390
|
Fri Sep 14 18:18:33 2012 |
Jenne | Update | General | In Vac Pictures |
|
|
|
7389
|
Fri Sep 14 18:15:43 2012 |
rana | Update | ASC | First In Vac Picture |
Looks good. Any way that you
can tell in an unambiguous way, where the |
|
|
7388
|
Fri Sep 14 16:39:14 2012 |
ericq, jenne | Update | General | First In Vac Picture | After much fussing, we got a picture of
MMT1 with the beam.
Using the iris doesn't seem feasible. |
|
|
7387
|
Fri Sep 14 12:51:43 2012 |
Jenne | Update | SUS | Need risers for active TTs | I was helping Den get started in the cleanroom
yesterday, and I noticed that the new active
TTs, like the old passive ones, are set to |
|
|
7386
|
Fri Sep 14 01:35:55 2012 |
Mike J. | Update | Electronics | AS beam scan PLOTS | |
|
|
7385
|
Fri Sep 14 01:18:51 2012 |
rana | Update | COC | 2 Layout Changes | After looking
at the in-vacuum layout I think we should |
|
|
7384
|
Fri Sep 14 01:05:36 2012 |
Den | Update | SUS | Mirrors being installed on active TTs |
|
|