| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
4622
|
Wed May 4 12:07:48 2011 |
Suresh | Update | RF System | REFL55 installed on the AP table | REFL55
has been installed on the AP table.
REFL11 has been moved to make space for a |
|
|
4623
|
Wed May 4 13:45:56 2011 |
kiwamu | Update | LSC | locking last night | Last night I was trying to calibrate the
MICH error signal and the actuators on BS
and ITMs. |
|
|
4626
|
Wed May 4 13:57:04 2011 |
kiwamu | Update | SUS | mechanical resonances updated | [Leo w/ a little help from Kiwamu]
Leo
summarized the mechanical resonances of all |
|
|
4627
|
Wed May 4 15:22:39 2011 |
kiwamu | Update | | Re: Intermittent MC3 UL PD signal | I
went push all the possible connectors for
the MC3 shadow sensors including the SCSIs, |
|
|
4628
|
Wed May 4 15:39:32 2011 |
Suresh | Update | RF System | RF Source Harmonics |
I have measured the RF source harmonics in |
|
|
4631
|
Thu May 5 00:08:59 2011 |
Jenne | Update | LSC | (Almost) New Screens for RFPDs | I modified C1LSC.mdl to use the CDSphase
blocks, which automatically calculate the
R and D phase rotation for us. Now |
|
|
4633
|
Thu May 5 10:19:22 2011 |
steve | Update | PSL | PSL-FSS_RMTEMP is back | Valera and I installed the the temp sensor
and the interface box that Rana fixed. This
may help with diagnosing the PSL drift. |
|
|
4635
|
Thu May 5 13:12:06 2011 |
Jenne | Update | PSL | Temperature drift, trying to shield PMC with foil | eeek. I've been running around
all day, so this is an incomplete elog.
I'll fill in more stuff in the next hour |
|
|
4636
|
Thu May 5 13:13:32 2011 |
Jenne | Update | LSC | New RFPD screens are in | Joe helped me compile the lsc simulink
model, and now we have R&D phase rotation.
Right |
|
|
4637
|
Thu May 5 13:14:15 2011 |
kiwamu | Update | LSC | chans file for LSC | Foton
doesn't correctly display the LSC filter
bank file : C1LSC.txt. |
|
|
4638
|
Thu May 5 13:55:08 2011 |
kiwamu | Update | LSC | MI locking : calibration of BS and ITMs actuators | EDIT by
KI on 15/5/2011: |
|
|
4639
|
Thu May 5 14:40:14 2011 |
Koji | Update | LSC | MI locking : calibration of BS and ITMs actuators | I've got confused
1) Are these the DC responses of
the coils? If that is true, we need to specify |
|
|
4640
|
Thu May 5 14:50:30 2011 |
Jenne | Update | LSC | chans file for LSC |
|
|
|
4641
|
Thu May 5 15:05:06 2011 |
steve | Update | PSL | PSL-FSS_RMTEMP is not back |
|
|
|
4643
|
Thu May 5 15:28:23 2011 |
kiwamu | Update | LSC | Re: MI locking : calibration of BS and ITMs actuators | They are the DC responses.
I put the resonant frequencies that |
|
|
4645
|
Thu May 5 16:11:22 2011 |
Jamie | Update | LSC | chans file for LSC |
|
|
|
4648
|
Thu May 5 20:47:41 2011 |
Koji | Update | PSL | PMC aligned | The PMC exhibited the reduction of the
transmission, so it was aligned.
The misalignment was not the angle |
|
|
4650
|
Fri May 6 06:36:18 2011 |
Suresh | Update | RF System | PD DC signals at each port connected | We now
have the DC signal from three PDs available
in the ADC channels 14,15 and 16. The |
|
|
4654
|
Fri May 6 15:59:40 2011 |
steve | Update | VAC | TP3 fore pump replaced | Dry fore pump of TP3 replaced by brand
new Varian SH-110 at 1.1 Torr_75,208
hrs |
|
|
4655
|
Fri May 6 17:11:55 2011 |
steve | Update | SUS | SRM-oplev cable | The SRM qpd cable was removed from the
BS-table. It's path was changed from 1x4
to ITMY-table following the inner cable tray. |
|
|
4656
|
Sat May 7 02:52:53 2011 |
kiwamu | Update | LSC | TRY photo diode installed | [Suresh / Kiwamu]
We
installed the TRY photo diode (Thorlabs one) |
|
|
4657
|
Sat May 7 10:59:11 2011 |
Suresh | Update | RF System | RF Source filters changed |
The
SLP-50 filters which were on the 55 MHz lines |
|
|
4659
|
Sat May 7 18:08:54 2011 |
valera | Update | IOO | MC beam spot centering script | I tried to run the scripts/senseMCdecentering
to check the centering of the MC beam spots
on the mirrors. The script (csh) produces |
|
|
4660
|
Sun May 8 16:32:52 2011 |
valera | Update | IOO | MC beam spot centering | Kiwamu told me that the CDS matrix
notation has changed and the 40m front end
code has changed since February. I changed |
|
|
4661
|
Sun May 8 17:29:01 2011 |
rana | Update | IOO | MC beam spot centering | It seems like the best option would be
to make the MCASS just adjust the SUS biases
and center the beams on the suspended optics. |
|
|
4662
|
Sun May 8 22:59:40 2011 |
rana | Update | PSL | PSL reference cavity temperature box modifications | I looked at the PSL temperature box. It
started out as D980400-B-C. Then it was revised
by Peter King as per the LHO mods E020247. |
|
|
4663
|
Mon May 9 09:37:51 2011 |
valera | Update | PSL | PSL and MC trends | The attached plot shows 7 day trends of
the MC and PMC power levels, PSL QPDs, and
temperature. The MC stayed locked for ~40 |
|
|
4664
|
Mon May 9 12:33:40 2011 |
kiwamu | Update | LSC | C1:LSC-TRIG_MTRX : wrong matrix size | I found
that C1:LSC-TRIG_MTRX has a wrong matrix |
|
|
4665
|
Mon May 9 13:14:48 2011 |
josephb | Update | LSC | C1:LSC-TRIG_MTRX : wrong matrix size | [Joe,
Kiwamu]
There |
|
|
4666
|
Mon May 9 15:21:36 2011 |
josephb | Update | PSL | Fixed channel names for PSL QPDs, fixed saturation, changed signs | [Valera,
Joe]
Software |
|
|
4670
|
Mon May 9 17:23:25 2011 |
Suresh | Update | RF System | RF Cables near LSC Rack | [Steve, Suresh]
We started to clean up the RF cables
(heliax and PD interface cables) at |
|
|
4671
|
Mon May 9 18:54:29 2011 |
kiwamu | Update | LSC | triggerd locking logic : screen prepared | I made a new medm screen for the triggering
logics. Have fun.
I put a button on C1LSC.adl to invoke |
|
|
4672
|
Mon May 9 20:30:20 2011 |
rana | Update | PSL | PSL reference cavity temperature box modifications | I re-installed the box (@ ~8:15) after
reflowing some of the solder joints. I will
observe it over night and then remove the |
|
|
4673
|
Tue May 10 00:31:28 2011 |
kiwamu | Update | ASC | IFO alignment plan | The alignment of the interferometer
goes basically step by step.
Tuesday will be an alignment day. |
|
|
4674
|
Tue May 10 00:44:52 2011 |
valera | Update | IOO | MC2 centering | Kiwamu, Koji, Valera
We centered the beam on MC2 in pitch
by moving the MC1,2,3 in the following combination |
|
|
4675
|
Tue May 10 01:39:41 2011 |
Suresh | Update | RF System | RF source troubles | Today after Steve and I finished the RF
cabling work for the day, Kiwamu noticed
that there were no RF signals to be seen. |
|
|
4676
|
Tue May 10 09:05:49 2011 |
Koji | Update | General | aLIGO BBPD / Green PD investigation | BBPD update
- The BBPD circuit has been constructed
on the aLIGO BBPD board |
|
|
4677
|
Tue May 10 10:06:23 2011 |
josephb | Update | PSL | Fixed channel names for PSL QPDs, fixed saturation, changed signs | I added calculation entries to the /cvs/cds/caltech/target/c1iool0/c1ioo.db
file which are named C1:IOO-QPD_*_*, as the
channels were originally named. These |
|
|
4678
|
Tue May 10 11:14:44 2011 |
steve | Update | PSL | PSL-QPD_ANG qpd optimized | Valera and I placed F 572.7 mm lens ~15
cm away from the ang qpd (in
the same mount with ND filter) so that two |
|
|
4679
|
Tue May 10 16:42:49 2011 |
josephb | Update | CDS | New upconversion model (c1uct) | [Ryan, Joe]
Ryan added the c1uct (upconversion
tester) model to the c1ioo machine. |
|
|
4680
|
Tue May 10 16:45:19 2011 |
josephb | Update | CDS | c1ass now receiving AS55I from c1lsc | [Valera, Joe]
We added a cdsPCIx_SHMEM connection
between the c1lsc and c1ass models. |
|
|
4681
|
Tue May 10 20:57:05 2011 |
rana | Update | PSL | PSL reference cavity temperature box modifications : after 24 hours still OK |
|
|
|
4682
|
Tue May 10 22:56:17 2011 |
kiwamu | Update | SUS | f2p filters installed on ETMY | New f2p filters
were installed on ETMY. |
|
|
4683
|
Tue May 10 23:14:01 2011 |
kiwamu | Update | SUS | ETMX_OPLEV : He-Ne laser dead ? | I
found that a He-Ne laser which has been used
for ETMX_OPLEV was NOT giving the light. |
|
|
4684
|
Wed May 11 00:23:21 2011 |
kiwamu | Update | ASC | Y arm and beam pointing alignment | [Jamie / Valera / Kiwamu]
The incident |
|
|
4686
|
Wed May 11 11:05:45 2011 |
steve | Update | SUS | ETMX_OPLEV : He-Ne replaced |
|
|
|
4687
|
Wed May 11 11:24:59 2011 |
steve | Update | SUS | SRM-oplev qpd is back |
|
|
|
4688
|
Wed May 11 11:44:52 2011 |
kiwamu | Update | SUS | f2p filters installed on ITMY | New f2p
filters were installed on |
|
|
4689
|
Wed May 11 13:54:32 2011 |
steve | Update | LSC | LSC power supplies | Aux- rack _1Y2 is just behind 1Y3
It contains Kepco Analoge DC power supplies
for +- 5, 15 and 24V |
|
|
4693
|
Wed May 11 21:58:30 2011 |
rana | Update | SUS | ETMX_OPLEV : He-Ne replaced |
|
|