| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
3902
|
Fri Nov 12 00:13:34 2010 |
Suresh | Update | SUS | ETM assembly started | [Jenne,
Suresh]
Selection |
|
|
3901
|
Thu Nov 11 23:35:23 2010 |
Koji | Summary | CDS | found poor contact of DAC cable, previous A2L results were wrong | [Koji / Yuta]
There were |
|
|
3900
|
Thu Nov 11 21:07:49 2010 |
josephb | Update | CDS | Plugged c1iscex into DAQ network - still causes network slowdown | I connected the c1iscex computer to the
dedicated DAQ network switch (located in
1X7). |
|
|
3899
|
Thu Nov 11 18:05:55 2010 |
valera | Update | PSL | PMC mode matching at full laser power | The
PMC mode matching was initially done at low
power ~150 mW. It was expected and found |
|
|
3898
|
Thu Nov 11 17:47:36 2010 |
kiwamu | Update | Green Locking | 80MHz VCO : improve PLL hold-in range and put a boost | In order
to enlarge the hold-in range I modified the |
|
|
3897
|
Thu Nov 11 15:27:43 2010 |
valera, steve | Configuration | | ISS AOM installed | We installed the ISS AOM in the PSL.
The AOM was placed right after the EOM. The
beam diameter is ~600 um at the AOM. The |
|
|
3896
|
Thu Nov 11 13:54:05 2010 |
kiwamu | Update | Green Locking | 80MHz VCO : about PLL hold-in range |
The hold-in |
|
|
3895
|
Thu Nov 11 11:51:30 2010 |
Koji | Summary | CDS | found poor contact of DAC cable, previous A2L results were wrong | The cause is apparent!
The connectors on the cables are wrong! |
|
|
3894
|
Thu Nov 11 11:08:26 2010 |
steve | Bureaucracy | PEM | AP table found open | Please remember to cover the optical tables
! |
|
|
3893
|
Thu Nov 11 07:26:03 2010 |
Alberto | Update | Electronics | REFL11 Photodiode Not Working |
|
|
|
3892
|
Thu Nov 11 05:56:04 2010 |
yuta | Summary | IOO | setting up temporary oplev for coil balancing of MCs | (Suresh, Yuta)
Background: |
|
|
3891
|
Thu Nov 11 04:32:53 2010 |
yuta | Summary | CDS | found poor contact of DAC cable, previous A2L results were wrong | (Koji, Jenne, Yuta)
|
|
|
3890
|
Thu Nov 11 02:17:27 2010 |
Kevin | Update | Electronics | REFL11 Photodiode Not Working | [Koji and Kevin]
I was trying to characterize the
REFL11 photodiode by shining a flashlight |
|
|
3889
|
Thu Nov 11 01:34:27 2010 |
Jenne | Update | SUS | New-Old ETM towers assembled | [Suresh, Jenne]
We have put together the new-old
ETM towers. These are the ones which |
|
|
3888
|
Wed Nov 10 22:29:42 2010 |
kiwamu | Update | IOO | misaligned the wideband EOM | For Yuta's
business, I intentionally misaligned the |
|
|
3887
|
Wed Nov 10 14:28:33 2010 |
Koji | Summary | IOO | limitation of current MC aligning | 1. Look at the Faraday.
2. Look at the wiki. There is the
optical layout in PNG and PDF. |
|
|
3886
|
Wed Nov 10 12:21:18 2010 |
yuta | Summary | IOO | limitation of current MC aligning | 1. We didn't measure the aperture size
last night. We have to check that.
|
|
|
3885
|
Wed Nov 10 11:46:19 2010 |
Koji | Summary | IOO | limitation of current MC aligning | It didn't make sense in several points.
1. Is the Faraday aperture really
3mm? The beam has the gaussian radius of |
|
|
3884
|
Wed Nov 10 02:51:35 2010 |
yuta | Summary | IOO | limitation of current MC aligning | (Suresh, Yuta)
Summary: |
|
|
3883
|
Tue Nov 9 05:40:12 2010 |
yuta | Summary | IOO | MC aligning going on | (Suresh, Yuta)
Background: |
|
|
3882
|
Mon Nov 8 18:30:33 2010 |
Suresh | Update | IOO | MC Trans Mon QPD gain increased by 50x | Increased
the transimpedance gain of the MC-Trans-Mon
QPD ckt |
|
|
3881
|
Mon Nov 8 16:03:46 2010 |
kiwamu | Update | Green Locking | 80MHz VCO : PLL open loop looks good |
|
|
|
3880
|
Mon Nov 8 14:30:15 2010 |
josephb, yuta | Update | CDS | Added LIGONDSIP setting to cshrc.40m | We added the following line to the cshrc.40m
file in the 64-bit linux and 32-bit linux
sections: |
|
|
3879
|
Mon Nov 8 10:48:58 2010 |
kiwamu | Update | Green Locking | 80MHz VCO : PLL open loop looks good | |
|
|
3878
|
Mon Nov 8 10:37:14 2010 |
Koji | Update | IOO | The 10% pick-off for MCREFL was replaced to a HR mirror | As MC2 Trans mon QPD is temporary removed
for fixing, we needed a reference for the
MC alignment. |
|
|
3877
|
Sat Nov 6 16:13:14 2010 |
rana | Summary | CDS | 40m computer slow down solved | As part of the effort to debug what was
happening with the slow computers, I disabled
the auto MEDM snapshots process that Yoichi/Kakeru |
|
|
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: |
|
|
3875
|
Sat Nov 6 01:54:15 2010 |
Frank | Summary | Computers | virus definition file update on laptop for dinocam | i took
some pictures with the dinocam this afternoon.
I used the laptop computer next to it using |
|
|
3874
|
Sat Nov 6 00:49:04 2010 |
Koji | Update | IOO | IMC table work | [Suresh, Koji]
- Removed MCT optics in the |
|
|
3873
|
Fri Nov 5 23:05:43 2010 |
rana | Configuration | IOO | ioo.db file changed in c1iool0 to get back MC TRANS |
We like to have the MC TRANS channels
so that we can run all of our old scripts |
|
|
3872
|
Fri Nov 5 21:49:12 2010 |
rana | Summary | CDS | 40m computer slow down solved |
|
|
|
3871
|
Fri Nov 5 19:33:18 2010 |
Jenne | Update | Electronics | The beginnings of the new phase of the RF work | Joon Ho and I took a look at the RF stuff
that Alberto left, and we determined that
we've got most everything that we need. |
|
|
3870
|
Fri Nov 5 16:40:22 2010 |
josephb, alex | Update | CDS | c1ioo now has working awgtpman | Problem:
We couldn't set testpoints on the
c1ioo machine. |
|
|
3869
|
Fri Nov 5 15:20:18 2010 |
josephb, alex | Summary | CDS | 40m computer slow down solved | Problem:
The 40m computers were responding
sluggishly yesterday, to the point of being |
|
|
3868
|
Fri Nov 5 14:06:19 2010 |
yuta | Update | IOO | tried to align MC by A2L measurement | (Suresh, Kiwamu, Yuta)
Summary: |
|
|
3867
|
Fri Nov 5 09:08:14 2010 |
steve | Update | SUS | epoxy | Physical Electronics: Vac-Seal #288-6000
arriving Monday. Our last bag used last week
had a p/n 1002003 with expiration date |
|
|
3866
|
Thu Nov 4 19:26:51 2010 |
Suresh | Update | Locking | Changes to the Video MUX reversed | All the
temporary changes to the video cables and
the video MUX ( 3843 |
|
|
3865
|
Thu Nov 4 19:00:57 2010 |
Suresh | Update | Locking | Fibre coupling 1064nm light at the south-end table | The Fluke
Visual Fault locator (Visifault) arrived
and I used it to couple 1064nm light into |
|
|
3864
|
Thu Nov 4 17:57:27 2010 |
steve | Update | General | BeamScanner is working again | Koji, Suresh and Steve,
The beam scanner is back from repair.
Koji and Suresh helped to move the I/O address |
|
|
3863
|
Thu Nov 4 17:53:29 2010 |
yuta | Update | CDS | primitive python script for A2L measurement | Summary:
I wrote |
|
|
3862
|
Thu Nov 4 17:24:49 2010 |
steve | Update | General | conflat flanges for MIT | 8 pieces of 10" CF blanks were shipped
to MIT |
|
|
3861
|
Thu Nov 4 15:27:33 2010 |
josephb, yuta | Update | CDS | c1ioo test points not working | Problem:
We can't access any of the c1ioo
computer testpoints. Dataviewer and |
|
|
3860
|
Thu Nov 4 15:15:43 2010 |
josephb | Update | CDS | Modified feCodeGen.pl, fmseq.pl, and suspension screens | Feature Requested:
Have the CPU_meter change change
color at various alarm levels. These |
|
|
3859
|
Thu Nov 4 03:13:46 2010 |
Suresh | Update | Locking | Fibre coupling 1064nm light at the south-end table | [Kiwamu,
Suresh]
We |
|
|
3858
|
Wed Nov 3 23:58:45 2010 |
rana | Update | Electronics | Cougars | I looked at this web page: http://www.teledyne-cougar.com/Index.asp
for the RF company that Rich has recently
started using. |
|
|
3857
|
Wed Nov 3 21:19:40 2010 |
yuta | Update | CDS | put LOCKIN to c1ioo model and checked | (Joe, Yuta)
Summary: |
|
|
3856
|
Wed Nov 3 19:14:00 2010 |
rana | Update | PSL | PMC mode matching update | I moved the lens just before the PMC to
check the mode matching landscape. The PMC
trans went up from ~6.5 to ~6.8. That's 5% |
|
|
3855
|
Wed Nov 3 17:01:01 2010 |
josephb | Summary | CDS | Comparison of RFM read times | Problem:
RFM reads are slow. Rolf has
said it should take 2-3 microseconds per |
|
|
3854
|
Wed Nov 3 16:49:31 2010 |
steve | Update | General | storage cabinet is in place | The south end of IFO room 104 was reshuffled.
The flow bench was moved all the way to the
south end to create more room for the crane |
|
|
3853
|
Wed Nov 3 15:13:55 2010 |
josephb | Update | CDS | Temporary RFM slow read work around | Problem:
Each RFM read in the c1mcs model
is adding ~7 microseconds to the cycle time. |
|