Mon Aug 8 15:52:39 2011, steve, Update, VAC, back ground rga scan 
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The RGA region is beeing monitored during the vent. This will tell us how clean the RGA itself is.
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Tue Aug 9 16:40:12 2011, steve, Update, General, clean room coat counts
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I measured the particles coming off of new- unused clean room coat. Tyvek, Convertors, Allegiance #9393 measured 10 counts of 0.3 micron at 1 minute
and 0 count at 7 minute.
The 0.5 micron size measured 0 at both times. Jenne's used coat measured 20 counts of 0.3 micron and 0 counts for 0.5 micron at 1 minute. |
Tue Aug 9 16:54:47 2011, steve, Update, VAC, scratch on vac door
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Jenne found a big scratch on the north vac door of ITMY. Fortunately it does not reach the inner annulos 0 -ring seal.
This is precisely what we have to avoid to preserve our vacuum
system! |
Wed Aug 10 07:59:33 2011, steve, Update, SUS, this is too dam nice
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Quote:
Suresh and I tweaked the OSEM angles in ETMX yesterday. Last night the ETMs were left free swinging, and today I ran Rana's peakFit |
Thu Aug 11 08:29:28 2011, steve, Update, Computers, dataviewer at Rosalba
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I'm having this problem with DTV every morning at Rosalba only. It wants to start with a negative GPS time and it can not connect to the frame builder.
Normally after a few time of starting it, it will work. |
Thu Aug 11 15:31:43 2011, steve, Update, General, malfunctioning crane at ETMY
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Quote:
The horizontal trolley drive stopped working at the east end this morning. It is working intermittently. In the worst case we can take |
Thu Aug 11 16:07:37 2011, steve, Update, SUS, ETMY rack cables strain releived 
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|
Fri Aug 12 16:52:49 2011, steve, Update, General, Chamber illuminator switch
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I'm looking for an ether net based power switch for turning lights on and off for the vacuum system from MEDM screen. This
is what I found
Jamie please take a look at it. |
Thu Aug 18 10:59:04 2011, steve, Update, Treasure, Prepared for drag wiping
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Quote:
While waiting for the IFO team to align things (there were already ~5 people working on a ~1 person job...), I got all of our supplies prepped |
Thu Aug 18 15:54:35 2011, steve, Update, SUS, damped and undamped OSEMs 
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damped sus at atm1 and freeswingging sus at atm2
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Fri Aug 19 09:14:56 2011, steve, Update, IOO, degrading laser power at atm
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Light into the MC is 20 mW at atm, MC_Transmitted ~10 MW = 400 count
The PMC_T is OK but something else is drifting. |
Fri Aug 19 10:26:53 2011, steve, Update, SUS, OSEM sensor spectra
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Free swingging OSEM sensors LL at atm |
Fri Aug 19 15:31:53 2011, steve, Update, General, power interruption rescheduled to 10-1-2011
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UTILITY
& SERVICE INTERRUPTION
**PLEASE POST** |
Mon Aug 22 11:40:08 2011, steve, Update, VAC, cranes checked
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Cranes are checked and they are ready for lifting. At the east end will use the manual Genei-lift to put door on. |
Thu Aug 25 08:12:09 2011, steve, Update, SUS, ETMY & ITMY wiped, replaced, vac door on
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Quote:
We've closed up ETMX: |
Thu Aug 25 17:14:49 2011, steve, Update, VAC, clean room fashion changes 
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Jamie is modeling our next generation in-vac
& clean room bonny suit that Jenne and myself already tested.
It is quite bearable with our traditional cleanroom beret-bouffant cap. Please use these in the future. |
Fri Aug 26 07:53:59 2011, steve, Update, SUS, Broken UL magnet on ITMX
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Quote:
Dmass just reminded me that the usual procedure is to bake the |
Fri Aug 26 10:45:17 2011, steve, Update, General, crane at ETMY is fixed 
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Quote:
The horizontal trolley drive stopped working at the east end this morning. It is working intermittently. In the worst case we can take |
Fri Aug 26 15:59:33 2011, steve, Update, General, drawer cabinet moves in
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manufacturer info
Jamie and Shuresh moved in Jenne's 11 drawers cabinet and relocated old note book boxes on the inside of the vac tube. |
Tue Aug 30 10:49:29 2011, steve, Update, SUS, BS & PRM damping restored
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I have restored the damping of BS and PRM. Today is janitor day. He is shaking things around the lab. |
Wed Aug 31 11:37:56 2011, steve, Update, Green Locking, shutter in place at east end
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Uniblitz mechanical shutter installed in the green beam path at ETMY-ISCT The remote control cable has not been connected. |
Thu Sep 1 11:03:22 2011, steve, Update, VAC, back ground rga scan 
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The RGA back ground at day 29 of this vent. |
Thu Sep 1 15:07:45 2011, steve, Update, SUS, why ITMY is moving more ? 
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Atm1, ITMY and the SRM are on the same isolation stack. So why does the SRM move twice as much?
Atm2, We should check the ITMY SIDE_OSEM before pump down. Anatomically correct, beautiful picture taken by Kiwamu on August 22 |
Thu Sep 1 15:59:46 2011, steve, Update, SUS, light doors on at the ITMs
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Suresh, Kiwamu and Steve
Heavy chamber doors replaced by light ones at ITMX-west and ITMY-north locations. |
Tue Sep 6 08:05:53 2011, steve, Update, SUS, ITMX must be touching
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Quote:
The new ITMX was aligned by changing the DC |
Wed Sep 7 08:14:01 2011, steve, Update, SUS, final OSEM check  
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All fine, except ITMX_sensor_UL's 60 counts deep hoop for an hour. |
Wed Sep 7 12:03:49 2011, steve, Update, VAC, Pump down has started
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Jamie and Steve
We closed ITMX and ITMY chambers and started pumping around 11am
What we did before: |
Wed Sep 7 13:28:25 2011, steve, Summary, Cameras, All Camera setups a need upgrading
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Quote:
I just tried to adjust the ETMY camera and its not very user friendly = NEEDS FIXING. |
Wed Sep 7 18:19:37 2011, steve, HowTo, VAC, stop pump down for overnight
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Quote:
Jamie and Steve |
Thu Sep 8 10:50:44 2011, steve, Update, VAC, pumpdown #71 comleted 
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Vacuum status: " vacuum normal" CC1 pressure 5e-5 Torr
Slow roughing through butterfly valve took 11 hours at 1-2 Torr/min speed. We had a leak at the metal hose connecting o-ring that became
visible at 200 Torr. |
Thu Sep 8 13:20:07 2011, steve, Update, PEM, vac envelope at atm for 36 days
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We tried not to open chambers above 10,000 particles of 0.5 micron cf/min
New items going in: 2 rasor beam traps, 5 badly oxidized
old silver plated setscrew with spring loaded tips......to be replaced in the future, viton tips for eq screws....some are lose, gold plated allen |
Tue Sep 13 16:57:44 2011, steve, Update, LSC, ITMX oplev **
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Quote:
I lined up the Y Arm for locking and then centered the oplevs for ETMY and ITMY. |
Wed Sep 14 07:51:20 2011, steve, Update, SUS, PRM damping restored
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The PRM damping was restored at side sensor var 1050 |
Wed Sep 14 15:05:52 2011, steve, Update, PEM, air cond maintenance
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Jeff has changed our AC filters inside the lab this morning. Now he is checking on the main filters at CES. He will finish the roof units tomorrow.
Met One #1 counter is on the top of IOO chamber. It is measuring 1 and 0.5 micron size particles. One year of lab condition plot below.
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Thu Sep 15 07:28:08 2011, steve, Update, SUS, PRM damping restored
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Quote:
The PRM damping was restored at side sensor var 1050 |
Fri Sep 16 16:07:28 2011, steve, Update, SAFETY, visitors safety training
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Paul, Mirko and Katrin visiting grad students received the 40m basic safety training. |
Wed Sep 21 11:35:07 2011, steve, Update, VAC, RGA scan
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RGA scan with maglev pumping speed at day 14 of the pump down.
The larger inserted box contains the tuning parameters of the SRS 200 amu RGA |
Fri Sep 23 16:25:01 2011, steve, Update, VAC, vac rack UPS battery replaced 
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APC Smart -UPS 2200 model: SUA2200RM2U batteries were replaced by compatible RBC43, 8x 12V5A |
Mon Sep 26 11:35:44 2011, steve, Update, Cameras, arms cameras upgraded
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The arm's CCD cameras were reset as picture shows last week.
The height adjustment only works at ITMX. Short post holders are ordered to make this feature available on the rest.
The 75 ohms video and power supply cables are stress relieved. Solid cover can be attached now without miss aligning cameras. |
Wed Sep 28 07:36:41 2011, steve, Update, SUS, ITMY damping restored
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ITMY suspention damping restored |
Wed Sep 28 07:46:42 2011, steve, Update, SUS, Dsub connections at the back of 1X5 are fixed
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I'm turning the sus damping off for Dsub connection fix at the back of 1X5 rack
The plan is to install 4-40 jack screws to lock connector positions. |
Fri Sep 30 17:01:29 2011, steve, Update, SUS, ETMX oplev intensity effect on noise 
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Kiwamu and Steve,
This is one of the better oplev set up we have. Single bounce from TM, no mirror on stack. One lens and one mirror on ISCT. Old Uniphase
1103P laser on heafty 3" od mounts. |
Mon Oct 3 08:38:21 2011, steve, Summary, VAC, Recovery from the power shutdown is completed
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I failed to start Rana's favorit anciant desktop computer at the vac rack. He has to baby this old beast just a little bit more.
Vacuum status: Vac Normal was reached through Farfalla: Rga was switched back to IFO and and Annuloses are beeing pumped now. |
Tue Oct 4 07:51:36 2011, steve, Update, CDS, c1lsc and c1sus are still down
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c1lsc and c1sus are still down. Only ETMX and ETMY are damped |
Wed Oct 5 11:33:25 2011, steve, Update, SUS, PRM and BS oplev laser replaced
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JDSU 1103P died after 4 years of service. It was replaced with new identical head of 2.9 mW output. The power supply was also changed.
The return spots of 0.04 mW 2.5 mm diameter on qpds are BS 3,700 counts and PRM 4,250 counts. |
Wed Oct 5 17:08:49 2011, steve, Update, SUS, BS oplev spectra
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Kiwamu and Steve,
The He/Ne oplev shows no coherece so relative intensity noise is not limiting factor for the oplev servo |
Fri Oct 7 14:04:48 2011, steve, Update, SUS, He/Ne intensity noise effect on oplevs 7x
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The SRM bounce peak 18.33 Hz. Suresh helped me to retune filter through Foton, but we failed to remove it.
ITMX_OPLEV_PERROR shows high coherence with oplev laser. This is our lousiest set up. I will work on it next week.
Generally speaking we can say that JDSU-Uniphase 1103P and 1125P laser intensity noise do not limit oplev servo performance. |
Mon Oct 10 16:32:18 2011, steve, Update, SUS, UL sensor of ETMY is recovered  
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I lost UL osem voltage this morning when I was checking the actual connection at rack ETMY
This after noon I disconnected the 64 pins IDE connector from satelite amp at the rack, and the two 25 pins Dsubs at this juction board.
UL OSEM recovered after reconnecting these three connectors. |
Wed Oct 12 08:43:30 2011, steve, Update, SUS, ITMX oplev improved a bit 
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Atm2 is before optical path adjustment. The idea was to remove possible clipping in vacuum.
Coherense significantly reduced below 4 Hz
Today I will replace the He/Ne laser 1125P with 1103P |
Thu Oct 13 14:23:09 2011, steve, Update, SUS, ITMX oplev with 3 mm beam on qpd 
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I replaced the JDSU-Uniphase 1125P by 1103P He/Ne laser. This new laser had 2.8 mW output yesterday. It degraded to 0.5 mW by this morning.
The beam size on the QPD is ~3 mm This should give us better sensitivity. These are not the perfect lenses at all, but we have them
here. |