| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
974
|
Fri Sep 19 11:48:14 2008 |
steve | Update | Computers | old hubs can make one happy | Joseph finds a XIX century bottle neck hub:
CentreCOM 3624TR 10Base-T
and happily replaces it with Netgear GS724T |
|
|
984
|
Tue Sep 23 11:17:59 2008 |
steve | Update | PSL | PMC scattering spot | The PMC output side has a new madly scattering
spot at chamfer 2 o'clock position |
|
|
996
|
Fri Sep 26 09:05:47 2008 |
steve | Update | SUS | MC2 damping restored | The MC2 sus damping was restored. |
|
|
1004
|
Mon Sep 29 11:17:14 2008 |
steve | Update | SAFETY | horizontal viewports are protected with lexan | The four horizontal viewports of arms are
protected
by 3/8" thick, 8.5" OD Lexan disk of MR10 |
|
|
1007
|
Mon Sep 29 15:09:36 2008 |
steve | Update | PSL | almost 4 yrs plot of power & temps | The water chiller is normally running 1.5
C warmer than the laser head temp.
When control room temp is stable and PEM-count_temp |
|
|
1020
|
Thu Oct 2 16:44:28 2008 |
steve | Summary | oplevs | optical levers | The idea is to push the UGF to 10 Hz of the
TM oplev servos with quiet HeNe laser.
We measured good intensity noise of JDS 1103P |
|
|
1027
|
Mon Oct 6 10:00:49 2008 |
steve | Update | MOPA | MOPA_HTEMP is up | Monday morning conditions:
The laser head temp is up to 20.5 C
|
|
|
1057
|
Mon Oct 20 09:45:56 2008 |
steve | Update | PEM | PSL HEPA on | The PSL HEPA filter was turned on.
It should be running all times.
The 0.5 micron particle count is up to 20,000 |
|
|
1062
|
Tue Oct 21 16:14:42 2008 |
steve | Update | General | divergence of He Ne 1035P | The ITM oplevs laser diodes are noisy.
They will be replaced by JDS 1035P
SN T8093307 was measured with the beamscanner.
|
|
|
1068
|
Wed Oct 22 16:22:53 2008 |
steve | Bureaucracy | SAFETY | Caryn received safety training | Caryn Polatchi has received 40m safety training
on Monday, Oct 20 |
|
|
1071
|
Thu Oct 23 11:26:25 2008 |
steve | Bureaucracy | VAC | optosigma forks for vacuum | Nine short forks from OptoSigma were cleaned,
baked and measured by Bob T.
They passed the LIGO vac compatiblity test |
|
|
1082
|
Fri Oct 24 11:09:08 2008 |
steve | Update | SAFETY | more lexan plates under cameras | The MC2, MC3&1 and BSC-SUS cameras were repositioned
somewhat in the
process of placing lexan disks under neat |
|
|
1085
|
Fri Oct 24 15:05:13 2008 |
steve | Update | VAC | rga is out of order | The old Dycor RGA is out of order.
I'm getting ready to purchase an SRS instrument. |
|
|
1094
|
Mon Oct 27 11:23:10 2008 |
steve | Update | Photos | new Olympus camera with IR vision | The IR blocker was removed from our new Olympus
camera
SP 570UZ camera.
|
|
|
1103
|
Fri Oct 31 08:52:19 2008 |
steve | Update | SUS | ETMY damping restored | ETMY watchdogs were tripped yesterday morning
also. This is a problem that existed some
months ago.(?)
|
|
|
1107
|
Mon Nov 3 09:59:47 2008 |
steve | Update | PSL | PSL HEPAs turned on | The psl [COLOR=chocolate]enclosure[/COLOR]
HEPAs were tuned on.
|
|
|
1116
|
Thu Nov 6 09:45:27 2008 |
steve | Update | MOPA | head temp hick-up vs power | The control room AC temp was lowered from
74F to 70F around Oct 10
This hold the head temp rock solid 18.45C |
|
|
1117
|
Thu Nov 6 10:06:41 2008 |
steve | Update | Locking | arms lock degradation | I have been locking the arms in the mornings
lately.
The daily drift of LSC-TRX is ~ 15% and LSC-TRY |
|
|
1120
|
Fri Nov 7 08:08:00 2008 |
steve | Update | PEM | AC turned off in IFO room | All [COLOR=red]tree[/COLOR] AC units in IFO
room 104 switched off at 7:45am
I'm looking for the periodic thump signal |
|
|
1121
|
Fri Nov 7 10:52:57 2008 |
steve | Update | PEM | AC is back on | The 20 minutes and 6 sec thumps are not related
to the 40m ac units
This period is precisely right on so it is |
|
|
1123
|
Fri Nov 7 16:05:55 2008 |
steve | Bureaucracy | SAFETY | insect killer sprayed at kitchen area ! |
Bob and I cleaned out the sink area and sprayed
Spectracide's BUG STOP insect killer solution |
|
|
1127
|
Mon Nov 10 16:44:14 2008 |
steve | Update | PEM | particle counter at MC2 | The particle counter was moved to MC2 table
temporarily.
It is clamped to the table at the south west |
|
|
1129
|
Mon Nov 10 19:39:40 2008 |
steve | Update | PEM | thump noise from particle counter | The particle counter is back on the IOOC location
on a piece of FOAM
It needs this isolation, so when the pump |
|
|
1134
|
Fri Nov 14 11:33:19 2008 |
steve | Update | VAC | SRS-RGA installed | Old Dycor rga is removed and new SRS-RGA200
installed.
It is pumped down and ready for hooking up |
|
|
1149
|
Thu Nov 20 09:37:39 2008 |
steve | Update | PSL | MZ vs temp | This 12 days plot shows that it can hold lock
if the daily temp variation is not more than
3/4 of a degree C
|
|
|
1197
|
Fri Dec 19 16:38:09 2008 |
steve | Update | LSC | all optlevs centered | All optlevs were centered after full alignment.
Qpd sums are:
|
|
|
1199
|
Sun Dec 21 13:00:06 2008 |
steve | Update | all down cond. | vac and laser back on | There was a power outage sometimes early Saturday.
All things are down.
|
|
|
1219
|
Fri Jan 9 09:14:17 2009 |
steve | Update | PEM | ifo is recovered after eq | There is no obvious damage from last night
earth quake.
All sus dampings were turned on, MC locked |
|
|
1220
|
Fri Jan 9 16:52:18 2009 |
steve | Update | VAC | tp3 forline pump replaced | Alberto took 40m vacuum 101 class as we replaced
the drypump at the annulus pump line.
|
|
|
1226
|
Wed Jan 14 09:22:43 2009 |
steve | HowTo | VAC | N2 supply pressure lowered for vac valves | [quote]I've been replacing the N2 bottles
recently.
I noticed that the consumption is too high. |
|
|
1227
|
Wed Jan 14 10:59:06 2009 |
steve | Bureaucracy | VAC | rga waiting to be "connected" | We have no RGA data since old Dycor passed
away in the middle of Oct, 2008
New SRS-RGA200 was installed on the vac envelope |
|
|
1228
|
Wed Jan 14 15:53:32 2009 |
steve | DAQ | PSL | MC temperature sensor | [quote]I added a channel for the temperature
sensor on the MC1/MC3 chamber: C1:PSL-MC_TEMP_SEN.
To do that I had to reboot the frame builder. |
|
|
1229
|
Thu Jan 15 09:19:32 2009 |
steve | Update | IOO | MC locking | MC2 sus damping was found tripped at the morning
the second time this week.
|
|
|
1243
|
Thu Jan 22 08:34:10 2009 |
steve | Bureaucracy | SAFETY | safety training | Kakeru received 40m safety training yesterday.
He has no authorization to work alone in |
|
|
1248
|
Fri Jan 23 10:00:21 2009 |
steve | Update | PSL | PMC transmission is down | The PMC transmission is going down.
I have not relocked the PMC yet. |
|
|
1273
|
Thu Feb 5 09:12:29 2009 |
steve | Bureaucracy | SAFETY | safety updates & fire alarm test | The fire alarm test was completed at 13:30
yesterday.
|
|
|
1280
|
Fri Feb 6 14:49:31 2009 |
steve | Summary | SAFETY | laser inventory |
40M Laser Inventory at Feb 05,
2009
1, Lightwave PA#102 @ 77,910 |
|
|
1282
|
Fri Feb 6 16:23:54 2009 |
steve | Update | MOPA | MOPAs of 7 years | MOPAs and their settings, powers of 7 years
in the 40m |
|
|
1288
|
Tue Feb 10 10:48:48 2009 |
steve | Bureaucracy | SAFETY | safety glasses scanned | All 40m safety glasses are absorbent.
They
were scanned by 180 mW 2mm spot size
of 1064 nm beam and their transmissions |
|
|
1293
|
Wed Feb 11 11:39:17 2009 |
steve | Configuration | General | vac envelope ground | The vacuum envelope was grounded from
the IOO chamber to master ground north (under
electric breaker panel L)
with |
|
|
1300
|
Fri Feb 13 08:38:03 2009 |
steve | Update | IOO | MC2 damping restored | |
|
|
1302
|
Fri Feb 13 16:30:49 2009 |
steve | Configuration | General | status quo is disturbed | I have been getting ready for the annual
safety inspection in the past 2-3 days.
Meaning cleaning up and disturbing |
|
|
1319
|
Wed Feb 18 15:31:38 2009 |
steve | Bureaucracy | SAFETY | emergency back-up lights checked | All
13 exit and emergency back-up lights
and their batteries were checked.
|
|
|
1324
|
Thu Feb 19 11:51:56 2009 |
steve | Update | MOPA | HTEMP variation is too much | The C1:PSL-MOPA_HTEMP variation is more
than 0.5 C daily
Normally this
temp stays well within 0.1 C
This |
|
|
1332
|
Mon Feb 23 11:07:01 2009 |
steve | Bureaucracy | SAFETY | Kiwamu receives safety training | Osamu and Kiwamu received 40m safety training
on Thursday, Feb 19, 2009
Kiwamu needs Osamu's close supervision |
|
|
1347
|
Tue Mar 3 08:44:31 2009 |
steve | Update | PEM | air cond. maintenance today | IFO room 104 air conditions will be shut
down for maintenance today.
This
should be finished by noon.
The |
|
|
1387
|
Wed Mar 11 16:41:22 2009 |
steve | Update | MOPA | spare NPRO power | The spare M126N-1064-700, sn 5519
of Dec 2006 rebuilt NPRO's power output
measured 750mW |
|
|
1411
|
Fri Mar 20 11:01:02 2009 |
steve | Update | PEM | particle counts are high | The outside particle counts for 0.5 micron
are 3 million this morning at 9am. Low clouds,
foggy condition with low inversion layer. |
|
|
1414
|
Fri Mar 20 15:54:29 2009 |
steve | Omnistructure | General | 480V crane power switch on MEZ | CES Mezzanine is beeing rebuilt to accommodate
our new neighbor: the 20ft high water slide...&
.jacuzzi |
|
|
1420
|
Tue Mar 24 09:04:02 2009 |
steve | Update | SUS | 4.8 mag earthquake | SRM, ITMX, ETMX, ITMY and ETMY lost damping
at 4:55am this morning from 4.8 magnitude
earthquake. |
|