 Tue Jul 26 11:38:45 2011, steve, Update, SUS, ETMY bias checked
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I test drove ETMY biases.
PITCH worked well in slow and fast modes. Slow drive was from the IFO alignment screen C1:SUS-ETMY_PIT_COM and |
Wed Jul 27 10:10:12 2011, steve, Update, PSL, locking status 
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| 80 days: PMC is drifting |
 Wed Jul 27 15:38:01 2011, steve, Update, VAC, beam traps for vacuum
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We have cleaned, baked, rga scaned traps for vacuum. Thorlabs LB1 on 1" OD ss posts and forks. The effective surface area is 43 x 18 mm of stacked
razors.
Seven pieces are mounted on New Focus #9962 1" OD SS vented- pedestrals to 5.5" center height and 5 pieces to 4.875" |
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Wed Jul 27 15:49:56 2011, steve, Update, SAFETY, Manuel receives safety training
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| Our surf student Manuel Marchiò received 40m specific safety training today. |
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Thu Jul 28 16:26:42 2011, steve, Update, SUS, ITMX, ITMY & ETMY OSEM gains adjusted
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OSEM damping gains were adjusted by observing real time dataviewer to get Q of 5
OSEMs were kicked up one by one with 200 counts ~1sec. The error signal was optimized to get 1/2 of exitation amplitude at the 5th sinusoid |
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Fri Jul 29 16:04:51 2011, steve, Update, SUS, ETMX, PRM & SRM OSEM gains set
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Jamei fixed the computer. Now I had a healthier ETMX with SIDE signal that allowed me to set gains to get Q of 5
The Y arm restore locked the arm at TRY -out 2.4V, the X arm still did not lock or align to lock. It has some fringes.
ETMX POS gain 22 -> 17, PIT 3 -> |
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Mon Aug 1 08:52:37 2011, steve, Update, VAC, preparation to vent
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| Both arms locked easely around 1V transmited. We should recenter oplevs. |
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Mon Aug 1 16:06:05 2011, steve, Update, SUS, oplevs are centered
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Kiwamu, Koji and Steve,
Arm aligned separatly and oplev qpds were centered including BS. Than we realigned manually DRM and centered their qpds.
ALL SUS oplevs were centered to resonating cavities. |
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Mon Aug 1 17:47:37 2011, steve, Update, ASC, what is not working
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SUS-ETMY_QPD is not responding. It is reading zero in dataviewer and 4,400 counts on QPD MEDM screen.......must be wrong cable connected
IP-POS is sick. Last time alive 7-19-2011
IP-ANG beam is clipping on pick-up mirror at ETMY chamber. This will have to be fixed at the vent. The qpd itself is responding to light. |
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Wed Aug 3 09:40:13 2011, steve, Update, VAC, vent
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| The vacuum system is coming up to atm. The vent was started with slow N2 flow. The PSL output is blocked 2 places on the table. |
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Wed Aug 3 14:20:49 2011, steve, Update, SUS, ITMX and PRM damping restored
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ITMX watchdog tripped around 5 Torr and the PRM around 450 Torr of this vent. They were restored than.
We are at 580 Torr now. |
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Wed Aug 3 16:18:30 2011, steve, Update, VAC, vent is almost finished
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P1 at 750 Torr, Vent valve VV1 is left open to atm. It will reach equilibrium in an hour. The PSL power is not turned down yet. The beam path is
blocked at two places inside the enclosure.
The low power 20 mW input MC can be locked tonight. |
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Thu Aug 4 08:25:51 2011, steve, Update, SUS, sus at atm
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| ITMX and PRM moved alot. BS and ITMY just a little based on oplev reference. |
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Fri Aug 5 13:51:51 2011, steve, Update, SUS, cross coupling
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| We need a plan how to minimize cross coupling in the OSEMs now |
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Fri Aug 5 14:03:12 2011, steve, Update, General, malfunctioning crane at ETMY
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The horizontal trolley drive stopped working at the east end this morning. It is working intermittently. In the worst case we can take the door
off with the manual -Genie- lift.
I'm working with Konecrane to solve the wormgear drive problem. |
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Mon Aug 8 13:24:00 2011, steve, Metaphysics, Treasure, Monday morning
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Quote:
Just a reminder that a film crew will be here Monday morning, filming Christian Ott for some Discovery channel show. |
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Mon Aug 8 14:21:03 2011, steve, Update, PEM, Particle counts controlled
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Quote:
[Jenne, Kiwamu] |
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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. |
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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! |
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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 |
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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. |
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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 |
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Thu Aug 11 16:07:37 2011, steve, Update, SUS, ETMY rack cables strain releived
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| |
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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. |
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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 |
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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. |
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Fri Aug 19 10:26:53 2011, steve, Update, SUS, OSEM sensor spectra
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| Free swingging OSEM sensors LL at atm |
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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** |
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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. |
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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: |
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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. |
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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 |
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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 |
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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. |
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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. |
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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. |
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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. |
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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 |
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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. |
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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 |
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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. |
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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: |
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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. |
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Wed Sep 7 18:19:37 2011, steve, HowTo, VAC, stop pump down for overnight
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Quote:
Jamie and Steve |
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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. |
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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 |
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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. |
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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 |