40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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ID Date Authorup Type Category Subject
  3682   Fri Oct 8 17:36:16 2010 steveFrogsPhotosvisiting undergrads

Prof Alan Weistein guided the 24 student through the 40m. His performance was rated as  an enthusiastic 9.5

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  3688   Mon Oct 11 10:51:36 2010 steveUpdateSUSOSEMs, OSEMs, OSEMs...those lovely little OSEMs
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  3698   Tue Oct 12 16:35:17 2010 steveConfigurationPSLPSL output monitor in place

Innolight PSL laser is set to @2.1A , ~1.6W output ! Please scan out when finished! 

The output monitoring pick up window W2-LW-2-2050-UV-1064-45S is in place. IOO_ANG_OPD and IOO_POS_QPD roughly aligned.

The PMC alignment and/ or mode matching is bad. PMC reflected is 50%, throughput 600mW

Remember to block PSL output ! into IFO

 

  3733   Mon Oct 18 09:01:48 2010 steveHowToGeneralHow not to

This BNC cable is crying for help. Please do not do this to me.  It should be reported  to the  abused center.Throw this cable into the garbage now.

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  3745   Wed Oct 20 16:41:41 2010 steveOmnistructureGeneral laser chiller leaving for MIT
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  3751   Thu Oct 21 10:44:56 2010 steveMetaphysicsTreasure1987 supernova tapes plus....?

I'm cleaning out to make room for our new optical cabinet. Are we keeping these? There are  ~20  pieces of 10" od 1" wide tapes and large number of cassettes.

AJW,  Zucker,  Stuart A and Koji were notified in this matter.

Alan suggested to save data of Bruce Allen paper of observation of binary neutron stars in the 40m on 1994 November 14-20 and save back up tapes of his period in the 40m.

Mike: reels are not readable any more, it is time to let go

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  3792   Wed Oct 27 09:02:29 2010 steveUpdateElectronicsHP4195A is NOT fixed

www.avalontest.com has fixed the 25MHz oscillation.  Contact: Jim Burnham 760-536-0191

Actually, NOT FIXED.

  3808   Thu Oct 28 09:16:17 2010 steveUpdatePEMwelding in the vertex area

Fire-smoke sensors in the vertex area #2-31, 2-30 east, 2-32 south/MC2 and 2-37 old control room area are turned off to accommodate the welding

activity of folding crane. These sensors will be reactivated at 3:30pm today.

Stay out of the 40m lab: IFO room till 6 pm today.

  3810   Thu Oct 28 13:01:34 2010 steveUpdatePEMcrane repair guys left for the day

Quote:

Fire-smoke sensors in the vertex area #2-31, 2-30 east, 2-32 south/MC2 and 2-37 old control room area are turned off to accommodate the welding

activity of folding crane. These sensors will be reactivated at 3:30pm today.

Stay out of the 40m lab: IFO room till 6 pm today.

 The new cord wheel was to big. They be back tomorrow?

The lab is open.

  3832   Mon Nov 1 10:17:55 2010 steveUpdateGeneralbreakers relabelled

Pedro of the electrical shop helped to retrace wires from the racks to the breakers. Many wrong labels were replaced. These labels are  still representing                          the south arm as Y and  the east arm as X.

Racks: 1X1,2,3,4 and 1Y3,4,5,6,7 and 9 are connected through manual disconnect swithes to  AC power breaker PC-1 on the west wall of IFO room 104.

             This panel PC-1 is connected to T1 isolation transformer in room 101 Panel L - # 38, 40, 42

Racks: 1Y1 & 2  psl and mc are connected through manual disconnect switches to AC power breaker PC-2 just west of the psl enclosure.

             This panel is connected to T2 isolation transformer in room 101 Panel L - # 32, 34, 36

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  3833   Mon Nov 1 10:28:41 2010 steveBureaucracySAFETYSuresh received 40m safety training

Our new postdoc Suresh Doravari received 40m specific safety training last week.

  3854   Wed Nov 3 16:49:31 2010 steveUpdateGeneralstorage 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 reach. The old  large drawing cabinet  was moved under the vacuum tube.

The new clear view through  Acrylic-plexyglass cabinet is anchored. It has powder finished coating so it will not out-gas too much.The back side shelf mounting holes are sealed off with kapton tape. The doors still needs some gaskit seals.

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  3862   Thu Nov 4 17:24:49 2010 steveUpdateGeneralconflat flanges for MIT

8 pieces of 10" CF blanks were shipped to MIT

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  3864   Thu Nov 4 17:57:27 2010 steveUpdateGeneralBeamScanner is working again

Koji, Suresh and Steve,

The beam scanner is back from repair.  Koji and Suresh helped to move the I/O address jumpers on the interface card from default position  300 to 320

It is working again.

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  3867   Fri Nov 5 09:08:14 2010 steveUpdateSUSepoxy

Physical Electronics: Vac-Seal #288-6000 arriving Monday. Our last bag used last week had a p/n 1002003 with expiration date   .....2009 ? and it was stored in the

refrigerator all times. We are getting 68 small bags.

We should have precision gluing notes of epoxies/procedures used on our sus upgrade.

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  3894   Thu Nov 11 11:08:26 2010 steveBureaucracyPEMAP table found open

Please remember to cover the optical tables !

  4059   Wed Dec 15 16:04:49 2010 steveConfigurationVACvacuum valves found in default condition

This condition is created when we run out of nitrogen that holds the valves in set positions. The Maglev and other turbos are still running in this configuration so one has to pay attention that the foreline valves are open.

Reset  error message on vacuum screen and opened V4 & V5 at 3pm today.

  4077   Mon Dec 20 16:57:58 2010 steveUpdateIOOchecking out & closing the vacuum chambers
  • Check EQ-stops
  • clamp down counter weights
  • check other components are clamped
  • remove all tools
  • check cabling is not is not shorting out seismic stack or blocking beam
  • confirm well centered spots on mirrors
  4083   Tue Dec 21 16:20:09 2010 steveConfigurationVACpumpdown has started

Slow pumpdown of rebuilt IFO-mark4 started at 3pm today.

We are at 680Torr at this minute with 1.5 Torr/min speed.

  4089   Wed Dec 22 17:24:50 2010 steveConfigurationVACslow pumpdown at 12 hours

We have reached 200 Torr at 12 hours of slow pumping speed. Kiwamu stopped the pumping for 11 hrs last night .and I restarted it this morning.

Now RV1 is fully open with butterfly valve in place  and the second roughing  pump RP3 was just turned on.

 

How to stop pumping:

1,  close RV1 manual valve with torque wheel

2, close V3

3, turn off roughing pumps RP1 & RP3

4, disconnect metal hose connection to butterfly valve

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  4094   Thu Dec 23 13:30:09 2010 steveConfigurationVACslow pumpdown complete

The pump down continued this morning by the removal of the butterfly valve. Two roughing pumps were used to reach 500 mTorr

The Maglev monitoring MEDM screen "Rotating" indicator is not working. It is on all times. Please look at Maglev controller monitor for real information.

Pump down is completed.           

Configuration: vacuum normal after 86 days at atm               CC1 = 1e-5 Torr                  

                      IFO is hungry for light (and maybe some goulash with a little paprikash too)

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  4125   Fri Jan 7 15:17:37 2011 steveUpdateCamerasITMX video monitor has tower wide view

The Watec 902, 1/2" CCD camera got new Tamron lens: 1/2" 10-40mm F/1.4  manual iris. IR corrective lens. It is designed to have the same focal point in the IR as

in the visible light range. However, as the depth of field in the IR range is very narrow, focus adjustment should be done carefully in the IR.

Now you can see the sus tower that will make alignment easier.

 

  4133   Tue Jan 11 11:39:45 2011 steveUpdateVACRGA is turned on

Joe updated the rga procedure in the wiki and we turned on the filament. It will take a few days to reach thermal equilibrium.

TP2 dry fore pump was replaced at 910mTorr

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  4165   Tue Jan 18 10:25:23 2011 steveUpdatePEMvertex crane work this week

The crane people are here. The Vertex chambers are covered with plastic. The PSL HEPAs will be running on high during the day.

It is going to be disturbingly noisy and dirty during the day. Please try start working in the evening if it can not wait till next week.

  4233   Mon Jan 31 16:12:11 2011 steveUpdateVACVertex crane upgrade shorth coming

 The upgrade is almost finished. I found that the passive latch lock  is not closing down all the way. It has about a 3/8" gap.    See Atm. 1 & 2

The service man was here this morning and agreed to fix it.  They will be back next week. The latch needs an other spring to push it into full lock. 

We tested all possible sequences of operation of the new upgrade. It performed to specification.

 

 

Quote:

 

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  4264   Wed Feb 9 10:25:46 2011 steveUpdateSAFETYAP table

I blocked the  AP table's south west 10" ID port since it is obsolete with the new layout.

Reminder: items on the enclosure self can fall down in an earthquake. I moved oscilloscope and heavy calorimeter head from the edge of the cliff.

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  4269   Thu Feb 10 11:16:31 2011 steveUpdatePEMsouth arm AC turned on

The air condition was off for the south arm. I  turned it on.

  4273   Fri Feb 11 09:27:03 2011 steveConfigurationVACRGA scan

The RGA scan is normal at day 52 of this pump down.

Light power BS 1064nm ~25mW, ETMX 532nm ~5mW

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  4274   Fri Feb 11 16:43:09 2011 steveUpdateVIDEOMC1 & 3 video monitor

I set up video monitoring of MC1 and MC3

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  4286   Mon Feb 14 11:23:24 2011 steveUpdateSAFETYenclosure door upgrade

The #3 enclosure door was removed for the carpenter shop this morning. They will make 5 full size doors with window on each.

TEMPORARY aluminum sheet is clamped into its place. This sheet should not be removed till new doors arrive.

The inside Formica color will be changed from white to black to reduce the green scattering.

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  4290   Mon Feb 14 17:16:47 2011 steveUpdateGeneralracks, breakers labeled

The south arm labels were changed from y to x to reflect reality.

So racks, manual disconnects and breakers now have their actual name. The east arm will be changed over tomorrow.

Please remove incorrect labels if you see any !

I can not find 1X4 breaker so it will be  traced.

  4337   Tue Feb 22 11:53:38 2011 steveUpdateElectronicsRF Distribution box: assembly completed

Quote:

The mechanical assembly of RF distribution box is 99% complete.  Some of the components may be bolted to the teflon base plate if needed. 

All RF cables and DC voltage supply lines have been installed and tested.  I removed the terminal block which was acting as a distribution box for the common zero voltage line.  Instead I have used the threaded holes in the body of each voltage regulator.   This allows us to keep the supply lines twisted right up to the regulator and keeps the wiring neater.  The three regulator bodies have been wired together to provide a common zero potential point. 

I did a preliminary test to see if everything is functioning. All units are functioning well.  The output power levels may need to be adjusted by changing the attenuators. 

The 2x frequency multiplier outputs are not neat sine waves.  They seem to produce some harmonics, unlike the rest of the components.

I will post the measured power output at each point tomorrow.  The RF power meter could not be found in the 40m lab.  We suspect that it has found its way back to the PSL lab.

 

 http://www.timesmicrowave.com/wireless/index.shtml  

Frank is recommending these PhaseTrack-210 as phase stable low loss rf coax cables.

  4338   Tue Feb 22 14:37:24 2011 steveUpdateSAFETYLarisa received 40m safety training

Larisa Thorne received 40m lab specific, basic safety training. She will attend P. King's Basic Laser Safety Training Session tomorrow.

 

  4349   Thu Feb 24 11:18:08 2011 steveUpdateSUSSRM sus-cables

Cheater cables   for SRM sus tied up. They were dangling aimlessly on the floor.

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  4350   Thu Feb 24 16:47:26 2011 steveConfigurationPSL shutter is back on the PSL output

Uniblitz mechanical shutter was placed into the beam path of the PSL output with razor beam trap. The output power was 1.39W at 2.08A

It is working from the MEDM screen "old map" C1IOO_Mech_Shutter.adl

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  4356   Fri Feb 25 10:11:56 2011 steveUpdateSAFETYhow not to

The beam of IR for doubling  is clipping on bnc cable to green beam transmitted pd.

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  4367   Wed Mar 2 16:51:53 2011 steveConfigurationGreen Lockingmech shutter in place at the south end

I moved old POX shutter from ITMY optical table to the south end. MEDM POX mechanical shutter screen is now closing the green beam  injection into the Y arm.

I kluged in a 40m long bnc cable that Alberto left on the floor for control. It is labelled POX-sht  This is a temporary set up.

  4386   Tue Mar 8 15:23:16 2011 steveUpdatePEMclean room gloves

Ansell AccuTech 91-300 clean room gloves  ONLY in the 40m lab.

Cleaning and preparation must be carried out in these gloves also.

  4391   Wed Mar 9 17:29:11 2011 steveSummaryVACsingle O-ring protection

We have one single O-ring on the 40m vacuum envelope. It is on the OOC west side, facing the AP table. This O-ring has to be protected from the force of this

door. There should be 3 shims  ~120 degrees apart to carry the full load, so it is not the O-ring that is getting squashed.

This morning I found only one of these shims in place.

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  4405   Fri Mar 11 16:30:42 2011 steveUpdateGeneralhigh speed servo unit is here

New Focus Servo Controller has just arrived. We have 25 days to evaluate this product.

It will have to be shipped back to the vendor on April 4, 2011 the latest in order to get full refund.

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  4418   Mon Mar 21 16:31:02 2011 steveUpdateSAFETYBryan Barr received safety training

Bryan Barr is visiting us from Glasgow for a month. He received 40m specific safety training on Friday.

  4429   Wed Mar 23 09:48:20 2011 steveUpdatePSLPSL enclosure: gets new window & laser

Solid door, numbered 4 at south west corner of PSL enclosure was replaced by laser protective window.

The carpenter shop's Mark is making 4 more identical ones for the east side.

 

The Lightwave NPRO126 of 700mW was moved from the AP-table into the PSL-enclosure temporarily.

It's emergency shutdown switch can be seen at the center bottom picture

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  4430   Wed Mar 23 09:54:46 2011 steveOmnistructurePhotosLSC visitors

The 40m lab was visited by  ~ 30 LSC members  the end of last week.

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  4447   Mon Mar 28 16:19:23 2011 steveFrogsPhotosvisithing 5th graders

Suresh is captivating his audience with gravity waves on last Friday, March 25

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  4475   Thu Mar 31 11:30:51 2011 steveConfigurationGeneralstrain relieved rf cables

I strain relieved RF cables labeled 33 MHZ LO and 166 MHZ to EOM at 1X2  This is a temporary setup for the 11 MHZ

The coax N  bulkheads connectors are mounted on the plastic front panel now.

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  4487   Tue Apr 5 17:04:36 2011 steveSummarySAFETYcranes inspected and load tested

Mike Caton of Konecranes inspected and loadtested all 3  of the 40m cranes at max reach trolley positions with 1 ton.

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  4488   Tue Apr 5 17:31:59 2011 steveSummaryGeneralnew laser pointers

Quote:

Just for a record. We got 4 new laser pointers (2 greens, 1 blue, and 1 green and red combination). Don't lose them.

They reside in a bucket on the SP table, where IR viewers and sensor cards also reside.

DSC_2883_ss.jpg

 Low power green-red laser pointers are in. High power green, red and blue pointers are confiscated.

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  4496   Thu Apr 7 11:38:56 2011 steveUpdatePSLenclosure windows on the east side of the PSL

The PSL enclosure now have 4 windows on each side. The bottom rail guides on the east side will be replaced by  one  U-channel for smoother, more gentle sliding.

Door position indicator- interlock switches are not wired yet.

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  4497   Thu Apr 7 11:51:13 2011 steveSummarySAFETYnew crane operator inaugurated

Quote:

Mike Caton of Konecranes inspected and loadtested all 3  of the 40m cranes at max reach trolley positions with 1 ton.

 Konecrane representative gave crane operator training in the 40m. Koji has become a qualified, trained crane operator of the 40m lab.

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  4550   Thu Apr 21 08:26:42 2011 steveUpdatePEMPSL enclosure work today

The east side window guides  will be replaced by one long U-channel. There will be drilling into 2x2 steel frame. It should be done by 2pm today

This should remove the jerking motion of windows hitting the individual guides.

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