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
  3130   Tue Jun 29 08:41:06 2010 steveUpdateMOPAMOPA is dead

I found the laser dead this morning.

The crane people are here to unjam it.

Laser hazard mode is lifted and LASER SAFE MODE is in place. No safety glasses but CRANE HAZARD is still active.

Stay out of the 40m lab !

 

 

Attachment 1: laserisdead.jpg
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  3150   Wed Jun 30 18:16:55 2010 steveUpdateSAFETYSURF safety training 2010

40m SURFs Razib Obaid, Nancy Aggarwal, Unknown Bearded SMURF, Megan Daily, Gopal Nataraj, Katharine Larson and Sharmila Dhevi received 40m specific safety training on June 23, 2010.

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  3152   Thu Jul 1 10:26:34 2010 steveConfigurationVACpd68 at vacuum normal state

Slow pump down _pd68 has reached the vacuum normal state.  CC4_Rga region is pumped now. The RGA is still off.

Precondition to this pump down:                                                                                                                                                                                                                                                           129 days at atm,                                                                                                                                                                                                                                                                                         ITMs replaced. MMT, oplev and other components were removed from BSC, ITMCs. New MMT mirrors are in.                                                                                                             IOO_access_connector was out. The end chambers were not opened.

 

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  3192   Mon Jul 12 10:23:51 2010 steveUpdatePEMair condition maintenance is today

The AC filters will be checked and/or replaced today. This means the AC will be off for sort periods of time. Temperature and particle count will be effected some what.

See 800 days plot

Attachment 1: pem2y.jpg
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  3202   Tue Jul 13 10:02:30 2010 steveUpdateMOPAlaser power is dropping slowly

I have just removed an other 400 cc of water from the chiller.  I have been doing this since the HTEMP started fluctuating.

The Neslab bath temp is 20.7C, control room temp 71F

 

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  3248   Tue Jul 20 08:04:31 2010 steveConfigurationVACslow vent has started

The PSL shutter was closed. The beam path  blocked two places. High voltage power supplies to IOO and OMC PZT were checked to be off. Oplevs are off. 

The south arm green cavity was misaligned yesterday

We would like to keep the vent speed at 1 torr / min. I'm venting with N2 now up to 25 PSI. We have 3 cylinder  of instrument grade air inside the lab. Additional supply will arrive later. It can be as late as 1pm

  3266   Thu Jul 22 08:07:27 2010 steveUpdateVACvent finished

Quote:

The vent has been finished successfully in this morning.

The vent was finished successfully this morning.

 Thanks to Kiwamu, Alberto and Koji

Attachment 1: 30hvent.jpg
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  3272   Fri Jul 23 08:15:59 2010 steveUpdatePSLref cavity ion pump

The ref cavity ion pump was running at 7.7kV instead of 5kV

This Digitel SPC-1 20 l/s ion pump should be running at 5kV

  3277   Fri Jul 23 15:32:02 2010 steveUpdatePEMcontrol room AC set point changed

The control room temp is warmer than usual. The heat exchanger Office Pro 18 set point was lowered from 70 to 68F yesterday.

The MOPA headtemp is higher also. The Neslab chiller bath temp peaks around 21.6 C daily. This should be rock solid 20.00 C

It did not have any effect.

Now, I have just lowered the thermostat setting of room 101 from 73 to71F  I  hope Koji can take this.

  3279   Fri Jul 23 16:00:35 2010 steveUpdateSAFETYcrane load test tomorrow

All 3 cranes will be load tested at 1 ton tomorrow morning between 9am and 2pm

Do not come to the 40m lab during this period. We may disturb your experiment.

Please prepare your touchy set ups to take this test.

  3288   Mon Jul 26 08:51:31 2010 steveUpdatePEM lowering AC setpoint by 2F makes PSL happy

Quote:

The control room temp is warmer than usual. The heat exchanger Office Pro 18 set point was lowered from 70 to 68F yesterday.

The MOPA headtemp is higher also. The Neslab chiller bath temp peaks around 21.6 C daily. This should be rock solid 20.00 C

It did not have any effect.

Now, I have just lowered the thermostat setting of room 101 from 73 to71F  I  hope Koji can take this.

 Little change in the AC set temp can make wonders. Neslab chiller bath temp 19.99C is back to normal and daily variation of PSL are much better.

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  3297   Tue Jul 27 11:43:24 2010 steveUpdatePEMair quality is bad today

The lab is at 30,000 and Pasadena air is at 1.1 e+6 particles /cf min of 0.5 micron.

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  3311   Wed Jul 28 14:54:56 2010 steveUpdateSAFETYevacuation drill at the 40m

Head count at the evacuation drill today. I checked  alarms and flashers  at room 104,102,101, 103, 105 and 107. They were really loud and bright. 

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  3331   Fri Jul 30 09:55:34 2010 steveConfigurationVACslow pumpdown has started

Bob and Steve closed BS chamber with the help of the manual Genie lift and the pump down started. The PSL shutter was closed and manual block was placed in the beam path. High voltage power supplies were checked to be off.

Pumping speed ~ 1 Torr/min was achieved at  1/8 of a turn opened roughing valve RV1

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  3333   Fri Jul 30 14:53:09 2010 steveUpdateGeneralPSL table leg upgrade

Quote:

July
29 Thu BS chamber work: Move cable towers / green steering mirrors / (2 TTs with TT charactrization) / Put the heavy door by 5PM.
30 Fri Pumping down
31 Sat WFS work by Nancy

Aug
1 Sun - 5 Thu WFS work by Nancy
5 Thu PSL Table prep
6 Fri PSL Table prep / Likely to shut down the PSL

9 Mon PSL Table prep / shutting down of the PSL (optional)
10 Tue PSL box Frame lifting
12 Thu PSL table tapping

16 Mon - 17 Tue concrete pouring preparation
19 Thu - 23 Fri Tripod placement
24 Tue - 26 Thu concrete pouring

The PSL table height will be raised to the level of the AP table. This will be done using 6 TMC's Rigid Damped Tripod legs. Their planed positions shown below.

The legs will be grouted to the floor with concrete.

 http://www.techmfg.com/products/floorplatforms/rigiddampedtripod.htm

Attachment 1: psllegs.PDF
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  3336   Fri Jul 30 17:54:55 2010 steveHowToVACHow to stop and start slow pumpdown

Quote:

Bob and Steve closed BS chamber with the help of the manual Genie lift and the pump down started. The PSL shutter was closed and manual block was placed in the beam path. High voltage power supplies were checked to be off.

Pumping speed ~ 1 Torr/min was achieved at  1/8 of a turn opened roughing valve RV1

 We are at 370 Torr at 9 hrs of  pumping. RV1 is opened to ~ 3/8 turn orifice. We are using one roughing pump RP3  and butterfly valve is in place.

 

How to stop: 1, close RV1 by torque wheel  2, close V3 from MEDM screen  3, turn off RP3 roughing from MEDM screen  4, disconnect metal hose to oily pump

after butterfly valve. This KF-45 O-ring seal should be kept clean 5, place/close  45 mm cover blanks at the end of the hose and and on the 5" nipple.

 

How to start: 1, remove blanks from  hose and nipple 2, reconnect roughing pump hose to RV1 nipple  3, turn on PR3  4, open V3  5, open RV1 by wrench to ~3/8

6, fine tune RV1 opening to 1 Torr/min

 

ESSENTIAL: one operator has to be present when oilly roughing pump is connected to the vac. envelope

  3347   Mon Aug 2 10:26:15 2010 steveConfigurationVACvery slow pumpdown completed

Quote:

Bob and Steve closed BS chamber with the help of the manual Genie lift and the pump down started. The PSL shutter was closed and manual block was placed in the beam path. High voltage power supplies were checked to be off.

Pumping speed ~ 1 Torr/min was achieved at  1/8 of a turn opened roughing valve RV1

 3 days pump down #69 completed. Thanks to Koji  and Kiwamu  who did more roughing on Saturday and Sunday.

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  3371   Fri Aug 6 08:09:15 2010 steveUpdatePSLPSL preparation work

Quote:

PSL preparation work

Aug 5th 10am-4pm?: (Kiwamu, Alberto, Koji)

  • Removing the unused cables around the PSL table and the control room

Aug 6th 10am-4pm?: (Kiwamu (ex. noon-2pm), Alberto, Koji, Jenne ('till noon) )

  • Labeling the cables to be disconnected / making the records ==> All
  • Removals
    • the big nuts at the side of the PSL table ==> Steve
    • the cable ties on the PSL frame ==> Easy
    • Innolight 2W ==> Kiwamu
    • the green pickoff optics at the edge, if necessary ==> Kiwamu talking with Steve
    • Optics on the shelf ==> Jenne / Koji
    • Oscilloscopes on the shelf ==> Jenne / Koji
    • CCD camera connections (optional, as far as not critical for the operation)
  • Put poles on the table (for the plastic sheet) ==> Alberto / Koji

Aug 9th  9am-5pm: (Steve, Jenne, Alberto, Koji)

  • Disconnecting the cables ==> All
  • Shutting down the PSL ==> Steve/Koji
    • Draining the cooling water  ==> Steve
  • Removals
    • The accelerometers ==> Jenne
    • the PSL chamber ==> Steve
    • Periscopes ==> Alberto
  • Sealing of the table with the plastic sheets

 

  • The chiller is planned to go to MIT

 

Monday, August 9

 We should move the reference cavity too. Will this cavity be pumped while relocated?

Check and insure that attached and cut-free cables of PSL have enough room to tolerate the raising of the enclosure by 6"

I had second thoughts about the power line to the OMC. Koji was right, we should disconnect them from the power supplies.

The PSL enclosure doors on the north side will have to be removed some times to move exiting and entering ports.

 

  3394   Tue Aug 10 17:21:48 2010 steveUpdateGeneralPSL optical table is at 30" height

Mike Gerfen, Koji and Steve,

 

Our old ( 6 x 10 x 1 ) ft Newport optical table will have the same height as the neighboring AP table when this job is finished.

Today's work was to elevate the optical table ~ 2400 lbs to 30" clearance to create a workable space below.

 

Atm1,  enclosure frame was raised by 6"

Atm2,  2 pellet jacks and 4x4 technology in the work.

Atm3,  ready for drill and tap with jig plate in place, note 4 Al legs 8" OD. 1/4" wall safely supporting the load

Atm4,  showing clamps that holding 1/2" plywood with jigs

Atm5, We removed the 4 old legs: 6" OD steel, 1/4" wall and 10" high after they were unloaded.

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  3404   Thu Aug 12 10:56:31 2010 steveUpdateEnvironment dusty floor work in progres

I powered down 1Y1 and 1Y2 instrument racks of MC and RF-systems this morning.

Both racks, SP table, clean tools-parts boxes and MC2 area are also covered with plastics.

Bertin Bros. Construction, Inc is working on the floor preparation. Their head man is Robby Bertin, cell 626. 831.2264

Today's job:

remove tiles, clean off tile glue, drill for ribbed  steel bars, rough clean- surface for good bounding. paint floor with bounding agent

  3410   Thu Aug 12 16:18:46 2010 steveUpdateEnvironmenttiles and adhesive removed

Quote:

I powered down 1Y1 and 1Y2 instrument racks of MC and RF-systems this morning.

Both racks, SP table, clean tools-parts boxes and MC2 area are also covered with plastics.

Bertin Bros. Construction, Inc is working on the floor preparation. Their head man is Robby Bertin, cell 626. 831.2264

Today's job:

remove tiles, clean off tile glue, drill for ribbed  steel bars, rough clean- surface for good bounding. paint floor with bounding agent

Tiles and adhesive removed. There were no dust storms created. Solvent paint- removal made the hole IFO -lab smell like the paint shop.

The south door is open with a fan blowing air inside. The north-west door is open through control room to outside to let air rinse the drying

paint-removal. Koji is  taking lunch break while test riding our new PSL table legs.

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  3422   Fri Aug 13 18:32:48 2010 steveUpdatePEM new legs attached to optical table

Koji, Rana and Steve

 

The floor preparation continued today. The really messy part of drilling and jack-hammering the concrete were done in controlled manner.

Particle counts peaked at 106K of 0.3 micron and 13 K of 1.0 micron particles/ cfmin at the top of SP table.

Legs were installed with the help of Koji and strongman Rana. Professor Rana was very useful lifting the 85 lbs legs. 

 

Atm1, Drilling holes for ribbed bar reinforcement of concrete

Atm2, Koji and Rana are playing hide and seek while installing legs

Atm3-4, 6 Rigid tripod legs attached by 6x3 of 1/4-20x 7/8 screws. The top plates of the legs were torqued to 108 ft/lbs by Rana

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  3430   Tue Aug 17 14:09:15 2010 steveUpdatePEMPSL optical table schedule

Tuesday, 17 August : fill tunnel, set table height, level table and balance load

Wednesday : grout tripod legs and leave it alone

Thursday : built  guide-form for concrete

Friday :  pour concrete

Monday, 23 August : remove guide forms and clean up

  3435   Wed Aug 18 16:42:14 2010 steveUpdatePEMPSL optical table legs load balanced

 

 Rana, Koji, Alberto and Steve, Tuesday afternoon

 

Atm3, Part of the tunnel under the table was filled with quick drying concrete this morning  to give solid support for tripod legs.

          PVC tube 6 " ID with TEE will able us to connect AP table, PSL table and Control room if needed

Atm4, Table height set to equal AP at  ~32.75 " on copper plates using 5/8-11 x 4.5" set screw-bolt in tripod foot

           Rough leveling was done by 4 individual levels at the four corners with 9" long Stanley cast aluminum levels.

          Load balancing of the total weight  ~ 3000 lbs over  6 legs x3 = ~170 lbs on each jack screw with Snap-On torque wrench at 140 lbs/ft

Atm1, Three crew members at work. Prof. Rana's calibrated right hand was used at jack screws where insufficient space was available for socket head wrench.

Atm2, Table is ready for no shrink grouting now.

         

 

 

 

 

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  3444   Thu Aug 19 16:03:59 2010 steveUpdatePEMgrouting of PSL tripod legs

The 10' x 6' optical table is seating on 6 tripods. Each tripod leg has 3 feet. They are supported by jack screws against copper plates on the concrete floor.                            These set screws allowed us to set the height,  level and distribute the load of the table.

To lock this position of the table grouting is used around the jack screws and between the concrete floor and the tripod feet.

Once the grout set the load will be carried by the hole feet  of 4" x 3.25" x3 = 39 sq inches per tripod leg

 

These ~4" thick grouted islands of 8-9" OD will be covered by 4" concrete. The area between the legs will be filled with 8" thick concrete.

http://www.fivestarproducts.com/techinfo/GroutHandbook.pdf

 

Atm1, http://www.fivestarproducts.com/cementgrouts/specsheets/grout_ss.pdf

         Cement based grout, early height change 0 - 4%, hardened height change 0 - 0.3%

Atm2-3,  pouring grout

Atm4,  south west leg is done

 

Tomorrow: setting up ribbed bars, building frame to hold concrete and pour concrete

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  3448   Fri Aug 20 15:49:14 2010 steveUpdatePEMgrouting is done

The preparation for pouring concrete is continuing. The grout forms were removed. Half inch ribbed steel bars were epoxied into our 4" thick floor.

The concrete holding sides- forms are cut to size. They will be installed on Monday morning and pouring concrete should follow.

We can be planning for cleaning up on Tuesday

 

Atm1, epoxy used bars

Atm2, south west tripod feet grouted

Atm3, ribbed bars are getting ready

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  3449   Fri Aug 20 16:17:35 2010 steveUpdatePEMPEM-count channels are not working

C1: PEM-count channels are dead since August 12, 2010

  3455   Mon Aug 23 08:28:27 2010 steveUpdateSUSETMY sus damping restored
  3462   Tue Aug 24 11:23:32 2010 steveUpdatePEMtripod leg installation completed

Bertine Robby, Bertin and Jerry completed the installation by pouring concrete yesterday and cleaning up today.

Atm1-2, steel bars, grouted feet and side forms are ready

Atm3,    bounding agent is applied for better bounding

Atm4,    pumping concrete

Atm5,    shaker is used to fill-all

Atm6,    late after noon the forms- sides were removed,     NOTE: actual table to concrete distance is 12.75"

Atm7,    construction people left and the tile man is on the way

 

The tile patching should complete today so tomorrow we can remove plastic covers.

 

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  3472   Wed Aug 25 16:13:32 2010 steveSummaryPEMPSL optical table is back into operation at 32.75" level

The tile work was done yesterday after noon.

This morning Mike Gerfen and me lowered the enclosure frame to normal height.

Keven- janitor and I removed plastic covers from chambers, racks, SP, MC2 and clean tool boxes.

 

The afternoon Jenne, Kiwamu, Joe and Aiden cleaned the enclosure inside out. The particle count measured zero inside the enclosure with HEPAs on when the covers were

removed. The MOPA and all other components were happy to see us in excellent condition.

This table height is very user friendly!

 

Safety grounds were reconnected.

 

Atm1, new tiles around the concrete slab

Atm2, frame lowered with low cross bars reinstalled

Atm3, the enclosure frame's north west foot is connected to ground

Atm4, PSL optical table is connected to ground at the north east corner through 1 Mohm

Atm5, PSL optical table level at a stimulating, back-friendly height

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  3477   Fri Aug 27 11:27:33 2010 steveUpdatePEMcrane safety document

I posted the crane safety document on the 40m wiki, vacuum page as 26 August 2010

Please add your comments and corrections.

 

The South End Crane will be balanced on Tuesday,  31 August 2010

This will mean that the back door of the south arm will be open on and off. Air quality will bad.

Please plan accordingly.

  3493   Tue Aug 31 10:44:17 2010 steveUpdatePEMconcrete sealed

The PSL -leg concrete was sealed with a single coat of SCOFIELD Cureseal-S to minimize shedding of particles.

The optical table was covered  and optics were removed from the shelf. Accelerometers were turned off.

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  3495   Tue Aug 31 13:31:00 2010 steveUpdatePEMroom temp lowered

I lowered room 101 thermostat setting from 74F to 72F

  3496   Tue Aug 31 14:47:53 2010 steveConfigurationPEMtoilet upgrade

Our toilets were replaced by a green Gerber 1.6 gpf ( 6 lpf ) last week.

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  3505   Wed Sep 1 10:54:15 2010 steveUpdatePEM more crane balancing

Crane balancing at the south end is continuing today.

  3513   Thu Sep 2 14:11:17 2010 steveSummaryPEMsouth end crane balancing is completed

The crane I -beam now leveled at all degrees of rotation.  The lower hinge was moved southward  about 1/4 of an inch.  Performance was tested at 2000 lbs

 

Atm1, work in progress

Atm2, load test at 1 Ton

Atm3, service report

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  3514   Thu Sep 2 16:41:32 2010 steveConfigurationSAFETYlaser is ON: safety glasses required!

I hooked up interlock to the Innolight 2W 1064 nm in the enclosure. The manual shutter  is closed on this unit.

SAFETY GLASSES REQUIRED !

  3547   Wed Sep 8 16:17:58 2010 steveUpdatePEMparticle counter problem

I played with the particle counter this morning. Now it's running and reading the correct numbers on the old COCHECKLIST.adl medm screen.

However, it can not be seen with dataviewer.

Koji just rebooted the frame builder and the problem was solved.

  3549   Thu Sep 9 08:23:45 2010 steveUpdateSAFETYmain laser turned off

Innolight 2W 1064nm main laser was turned off for more enclosure related work.

The electrician re rooting the power- conduit to the interlock under the floor and bring it through the new concrete tunnel.

Emergency laser power shut off switch was tested at entry door 104M.  It worked fine.

 

No laser glasses required. Laser will be turned back on around 11 am today.

  3550   Thu Sep 9 11:17:15 2010 steveUpdateSAFETYmain laser is back ON

Quote:

Innolight 2W 1064nm main laser was turned off for more enclosure related work.

The electrician re rooting the power- conduit to the interlock under the floor and bring it through the new concrete tunnel.

Emergency laser power shut off switch was tested at entry door 104M.  It worked fine.

 

No laser glasses required. Laser will be turned back on around 11 am today.

Atm1,   AC power line to enclosure and interlock  was extended.

Atm2,   24V line to interlock rerouted

Atm3,   job is completed

 

SAFETY GLASSES REQUIRED !  SAFETY GLASSES REQUIRED!

 

 The laser is turned on. Injection current set to 0.871A.

Actually some one turned the  laser  off last night and did  not enter it into the elog ! Burned toast award is granted !

Please  come forward voluntarily.

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  3551   Thu Sep 9 11:31:54 2010 steveUpdatePEMaccelerometer cable connection

I turned off/on the power to the accelerometers in order to re rout their connections. I found cable connector body-nut  #3 loose to Accelerometer 2X This connector should be checked for solid performance.

  3585   Fri Sep 17 17:35:35 2010 steveUpdatePEMcleaned up at 1Y1 PSL rack

Cleaned up cables on the top and bottom. Vacuumed both areas. We still have some remaining shading from the MOPA umbilical and more unknown BNC cables hanging around.

  3591   Mon Sep 20 17:10:10 2010 steveConfigurationPSL enclosure beam guides to IFO are installed

The PSL out  2" OD beam guide tube was cut  1.5" shorter to 13.5"

The 10" OD  0.25" wall Al tube was replaced by a  lighter, not anodized and thinner  wall 0.094" tube of 15.5" lenght, that is 0.75" shorter.

The new position of the PSL table made these cuts necessary.

  3592   Tue Sep 21 15:33:02 2010 steveMetaphysicsTreasureWagonga alart

John Miller has arrived from Australia with 3 bags of  Wagonga Coffee. Trade bargaining has started on

250 mgs of Sumatran Mandehling, Timur and Papua New Guine.

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  3605   Fri Sep 24 16:31:35 2010 steveConfigurationGeneralopen frame- rack is moved

The squeezing open frame rack was moved from the south side of the PSL enclosure to the north side of the SP table.

AC power breaker is PC-2  #1

 

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  3611   Mon Sep 27 08:59:50 2010 steveConfigurationVACslow vent has started

Blocked PSL output beam  into IFO

Checked: HV at IOO & OMC are off, jam nuts in position,

Closed V1 and VM3, opened VV1 to N2 regulator

We are venting at 1 Torr/min rate

  3616   Tue Sep 28 14:12:14 2010 steveUpdateGeneralvertex crane drive is out of order

The vertex crane drive is overheating, it stopped functioning. Service man will be here tomorrow morning.

I crane was just turned  on for for may be  about 5 minutes. The vertical drive was fine for a while, but the horizontal did not worked at all.

The crane is tagged out again and the controller box is cooling down.

  3624   Thu Sep 30 09:34:58 2010 steveUpdateGeneralvertex crane trolly drive fixed

Quote:

The vertex crane drive is overheating, it stopped functioning. Service man will be here tomorrow morning.

I crane was just turned  on for for may be  about 5 minutes. The vertical drive was fine for a while, but the horizontal did not worked at all.

The crane is tagged out again and the controller box is cooling down.

 Atm1, Vertex crane controller unit on horizontal I-beam.

            Module CCES-407 1HP 2.3A 460V/3 phase on the right was replaced. Speed was increased  to 30 Hz

Atm2, See burned insulation on black wire that was shorting to the large suppressor resistor on Atm3 One can see the pit marks on the right end of it.

        This large power dissipater resistor got hot as the malfunctioning controller 407 broke down.   Touching black power wire insulation melted and made a short.

          So the heat was created and finally the fuses were blown. The unnecessary large fuses were replaced by small ones.

Fortunately we had one spare controller on hand that made this repair to be done fast.

We used the new Crane Safety Check list  from LIGO-E1000379-v1 the first time yesterday before doors were removed.

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  3626   Thu Sep 30 13:43:29 2010 steveUpdateSAFETYpropane gas smell in control room

The control room's north west corner smelled like propane gas  yesterday around 16:30

We all agreed that the smell was real and I called the safety office. I was told that they received 6 other calls from different parts of the campus.

The smell disappeared in about a half an hour.

  3637   Fri Oct 1 16:46:20 2010 steveBureaucracySAFETYYuta received 40m-101-safety training

Our visiting graduate student Yuta Michimura received 40m specific basic safety training today.

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