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ID Date Authorup Type Category Subject
  6765   Wed Jun 6 14:17:56 2012 steveUpdateComputersiMac ordered

Rana, Steve,

 


from Apple Store on line

  • $2,139.00

27-inch iMac

  • Part number: Z0M6

Configuration

  • 2.7GHz Quad-Core Intel Core i5
  • 16GB 1333MHz DDR3 SDRAM - 4x4GB
  • 1TB Serial ATA Drive
  • AMD Radeon HD 6770M 512MB GDDR5
  • Apple Mouse
  • Apple Keyboard with Numeric Keypad (English) & User's Guide
  • Accessory Kit
  6766   Wed Jun 6 14:36:58 2012 steveUpdateSUSETMY oplev work finished

Quote:

Quote:

Quote:

 

 The typical sign of a dying gas laser is that it glows for a few minutes only. The power supplies are fine.

Two new  JDS - Uniphase 1103P lasers ( NT64-104 )  arriving on Monday, May 21

 Yesterday I swapped in new He/Ne laser with output power 3.5 mW  The return spot on qpd is large ~6mm in diameter and 20,500 counts

The spot size reduction require similar layout as ETMX oplev.

 The oplev path is relayed and the spot size on the qpd is reduced. I still have to clean up and replace "Miki Mouse" lens holder.

 Late entry for Monday morning June 4, 2012

Cables were stress relieved. Cable entry - exit ports enlarged. Air gaps were minimized.

  6781   Thu Jun 7 08:12:20 2012 steveUpdateSUSPRM is still oscillating

Quote:

Quote:

What not to do:

The PRM oplev servo was left on and it was driving this oscillation overnight.

 Oplev servo turned off and sus damping restored. What is kicking up the PRM?

 The PRM oscillation stopped by turnig off oplev servo.

Do not turn Oplev Servo on when PRM is missaligned !

 

Attachment 1: PRMoscil.png
PRMoscil.png
  6782   Thu Jun 7 09:52:05 2012 steveUpdatePEMair cond maintenance

Quote:

 

 Air conditioning maintenance is scheduled for tomorrow from 8 to 11am

 Jeff checked and  replaced filters  as needed. Job completed this morning.

Attachment 1: PEM800d.png
PEM800d.png
  6790   Fri Jun 8 15:24:08 2012 steveUpdateVACRGA scan at day 276 and pressure plots

Quote:

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 wrench installed at ITMX bottom, reglued magnet on ITMX

Bad hardware things found:          nylon ball "locking elements" on OSEM locking set screws with screwdriver  slot, lose  1064 nm filter on OSEM pd

 40m - pumpdown 71- maglev pumping speed - at day 276........all normal

Attachment 1: 40m71pdM276d.png
40m71pdM276d.png
Attachment 2: pd71m276d.png
pd71m276d.png
Attachment 3: pd71d276.png
pd71d276.png
  6791   Mon Jun 11 09:37:16 2012 steveUpdateIOOPMC locked

Quote:

Quote:

IOO Angle & IOO Position QPDs centered.

 PMC trend of 400 and 1200 days

The Innolight 2W based PSL- IOO was implemented in the ~ summer of 2010

 The PMC was locked and the MC followed intantly

Attachment 1: PMClocked.png
PMClocked.png
  6804   Tue Jun 12 16:33:32 2012 steveUpdateSUSPRM oplevs servo ON for confirmation

Quote:

Yuta claims he fixed the PRM oplev by centering it the other day, but no one has left it on and watched it for a long while, to make sure it's okay.  We watched it now for ~2 min, and it was good, but we're leaving the oplevs off anyway for the night.  Tomorrow we should restore PRM (it's currently restored), turn on the oplevs, and let it sit to make sure it doesn't go crazy.

 

 PRM oplev servo was turned on with PITgain 0.5  and YAWgain  -0.7

Note: gain settings were PIT  1.0  and  YAW --0.5   on Jun 1, 2012 that I measured Feb 23, 2012

  6805   Tue Jun 12 17:04:55 2012 steveUpdateSUSPRM oplevs servo is still bad

Quote:

Quote:

Yuta claims he fixed the PRM oplev by centering it the other day, but no one has left it on and watched it for a long while, to make sure it's okay.  We watched it now for ~2 min, and it was good, but we're leaving the oplevs off anyway for the night.  Tomorrow we should restore PRM (it's currently restored), turn on the oplevs, and let it sit to make sure it doesn't go crazy.

 

 PRM oplev servo was turned on with PITgain 0.5  and YAWgain  -0.7

Note: gain settings were PIT  1.0  and  YAW --0.5   on Jun 1, 2012 that I measured Feb 23, 2012

 It is still oscillating. Gains turned down to zero.

Attachment 1: PRMolvstillosc.png
PRMolvstillosc.png
  6814   Wed Jun 13 11:19:05 2012 steveUpdateSUSIDC receptacles clamped

The MC_ IDC 64 pin cables from sat. amplifiers to junction-interface-board towards  whitening - dewhitening at the back of rack 1 X 5 are finally  clamped with

All other sus cables of the same kind have the correct short latch arm to lock them in for reliable contact.

Attachment 1: IMG_1341.JPG
IMG_1341.JPG
  6844   Thu Jun 21 09:01:18 2012 steveUpdateSTACISthe resurrection of STACIS -surf

There is a small wood cabinet under the south end flow bench, labeled STACIS.

Unit is complete with extension cards and cables.

Attachment 1: IMG_1364.JPG
IMG_1364.JPG
  6845   Thu Jun 21 09:10:08 2012 steveUpdatePEMflow bench must be running all times

The south end flow bench HEPA filter should be run all times. You can turn it off for a measurement or two but remember we are storing clean optics there.

The zero count bench will reach  room particle count  ~ 10,000 in one minute.

  6848   Thu Jun 21 15:00:55 2012 steveUpdateSAFETYSURFs 2012 safety training

Masha, Eric, Yaakov, Liz and Sasha received 40m specific basic safety training.

Attachment 1: surfs2012.JPG
surfs2012.JPG
  6860   Sat Jun 23 18:44:15 2012 steveUpdateGeneralpower surge has no effect on the lab

I was notified by CIT Utilities that there was a power surge or short power outage this after noon.

Lab conditions are normal:  c1ioo is down.  The south arm AC was off......I turned it back on.

  6864   Mon Jun 25 08:21:40 2012 steveUpdateGeneralAC power disturbance on Sat

Quote:

I was notified by CIT Utilities that there was a power surge or short power outage this after noon.

Lab conditions are normal:  c1ioo is down.  The south arm AC was off......I turned it back on.

 

             CALIFORNIA INSTITUTE OF TECHNOLOGY

                 FACILITIES MANAGEMENT

                 UTILITY & SERVICE INTERRUPTION

 

**PLEASE POST**

 

Building:         CAMPUS

 

Date:             Saturday, June 23, 2012

 

Time:             3:46 P.M.

 

Interruption:     Electrical Power Disturbance

 

Contact:          Tom Brennan, x-625-395-4984    

 

*The City of Pasadena Water & Power Department had a 34,000-volt line event on Saturday June 23 at 3:46 p.m.  This caused a city wide disturbance on the power grid.  The Campus did not lose electrical power.  However, the disturbance may have affected sensitive electronic equipment.

(If there is a problem with this Interruption, please notify the Service Center X-4717 or the above Contact as soon as possible.

If no response is received we will proceed with the interruption.)

         

                        Jerry Thompson,

                        Interim Director of Campus Operations & Maintenance

 

Attachment 1: powerdisturbed.png
powerdisturbed.png
  6894   Fri Jun 29 11:02:00 2012 steveUpdateVACthe vent is at 500 torr

Quote:

 Steve, Yuta and Jamie

Jam nuts were checked and oplev servos were turned off. Sus summery is below with strain gauge values. Are the strain gauge values have any meaning when the PZT contorrels are off??????????????????

Attachment 1: sussum.png
sussum.png
Attachment 2: pzt.png
pzt.png
  6895   Fri Jun 29 13:11:31 2012 steveUpdateVAC40m IFO at atm

 The 4 hrs vent plot at 3 torr/min rate.

Nitrogen was used from 1e-6 torr to 35 torr  at intake pressure 14 PSI

The rest was filled with 5 cylinders of Instrument Grade Air at intake pressure 14 PSI

We can start opening chamber at 3 pm today

 

Attachment 1: vent06292012.png
vent06292012.png
Attachment 2: 40m@ATM.png
40m@ATM.png
  6898   Sat Jun 30 18:31:38 2012 steveUpdateIOOinput telescope beam clipping on Faraday

  We could set up a simple pick  off after the Faraday  and bring it  out the north window of IOO chamber. No monitor needed, just take the cover off when you want to see it.

Most people have no idea how to get the MC through the F

  6906   Tue Jul 3 17:23:50 2012 steveUpdateVACpumpdown completed

Vacuum Normal State is reached in 9 hours.  CC1 =  2e-5 Torr

Aux dry pump #3 is still running.  The RGA is not pumped yet.

Attachment 1: pd72.png
pd72.png
Attachment 2: pd72vacnormal.png
pd72vacnormal.png
Attachment 3: pd72at9hrs.png
pd72at9hrs.png
  6927   Fri Jul 6 08:38:04 2012 steveUpdateComputerstime out

Why do we have these timing blanks?

Attachment 1: timingblanks.png
timingblanks.png
  6929   Fri Jul 6 09:27:40 2012 steveUpdateVAC4 days at atm

 I'm looking for some movement indicators of the vent-pump down events.

 

Attachment 1: vent_moves.png
vent_moves.png
  6930   Fri Jul 6 09:52:35 2012 steveUpdateVACpump down hick up

 I can not understand what really happened here with CC1 gauge or there was really a pressure glitch.

 

attachment 1,  pump down day 3 with 4th of July fireworks in the lab

attachment 2,  before and after vent in 9 days

 

 

Attachment 1: d3wFireworks.png
d3wFireworks.png
Attachment 2: pdhickup.png
pdhickup.png
  6959   Wed Jul 11 11:18:21 2012 steveUpdatePEMmore seismic noise next week
 
   The fabricators of the big flume in the CES lab have begun testing the sediment feed system which is the noisiest component and plan to test off and on during the day for the next week.
   Please let me know if you detect the noise or have any issues.
 
 
Brian Fuller

phone: 626-395-2465

  6970   Thu Jul 12 16:27:04 2012 steveUpdateVACdrypump changed

TP2  dry_pump was changed at intake pressure 982 mTorr at 84,889 hrs  This seal hold up for one year.

The rebuilt  pump seal performing well at 28 mTorr

  7044   Fri Jul 27 14:28:36 2012 steveUpdateVACcold cathode gauges

Our cold cathode 423 gauges are 10 years old. They get insulated by age and show no ionization current.  We should replace them at the next vent. I'm buying 4 at $317ea

 

Attachment 1: cc_gauges.png
cc_gauges.png
  7047   Mon Jul 30 09:00:18 2012 steveUpdatePSLPMC is still not fixed

The PMC was locking right the way, but it's transmission would not go up.  Finally I get it back up by moving the "sticky" DC Gain slider up and down a few times.

Attachment 1: pmcA.png
pmcA.png
Attachment 2: pmcB.png
pmcB.png
  7051   Mon Jul 30 15:49:16 2012 steveUpdateVACcc1 switched

Quote:

Our cold cathode 423 gauges are 10 years old. They get insulated by age and show no ionization current.  We should replace them at the next vent. I'm buying 4 at $317ea

 

 We have two CC1 gauges at the pump spool. One is in vertical position and the spare is in horizontal. Today I switched the cable from vertical to horizontal CC1

This one is reading higher pressure. It is an old dirty gauge. It may trigger the RGA protection when it's reading goes above 1e-5 torr

The real pressure is 2e-6 torr

Attachment 1: cc1changedfVtH.png
cc1changedfVtH.png
  7056   Tue Jul 31 08:01:22 2012 steveUpdateVACcc1 switched

Quote:

Quote:

Our cold cathode 423 gauges are 10 years old. They get insulated by age and show no ionization current.  We should replace them at the next vent. I'm buying 4 at $317ea

 

 We have two CC1 gauges at the pump spool. One is in vertical position and the spare is in horizontal. Today I switched the cable from vertical to horizontal CC1

This one is reading higher pressure. It is an old dirty gauge. It may trigger the RGA protection when it's reading goes above 1e-5 torr

The real pressure is 2e-6 torr

 cc1h spikes closed VM1 last night. VM1 is opened.

Attachment 1: cc1h1d.png
cc1h1d.png
  7071   Wed Aug 1 16:38:46 2012 steveUpdateSUSspare SRMU 03 optic moved

SOS optics prepared to be hanged are moved from the South Flow Bench to S15 Clean Cabinet.

SRMU 03 (1-25-2010) specification summery E080460-05-D,  older vintage SRM 01 and PRM 02 (need more specification)

There was one  NOT MARKED SOS with two broken magnets on its face. This is labeled ???

 

This was done to prepare clean space for TIP-TILT drive- test set up.

The existing cable from 1X5 can reach only to the south end:  from whitening filter to satelite amp.  This will be good for future test of suspensions.

We need to make new cable from 1 X 1 to the south end = 40m long

Attachment 1: IMG_1464.JPG
IMG_1464.JPG
Attachment 2: IMG_1465.JPG
IMG_1465.JPG
Attachment 3: IMG_1466.JPG
IMG_1466.JPG
  7087   Mon Aug 6 07:59:33 2012 steveUpdateSUSPRM oplevs servo is still bad

Quote:

Quote:

Quote:

Yuta claims he fixed the PRM oplev by centering it the other day, but no one has left it on and watched it for a long while, to make sure it's okay.  We watched it now for ~2 min, and it was good, but we're leaving the oplevs off anyway for the night.  Tomorrow we should restore PRM (it's currently restored), turn on the oplevs, and let it sit to make sure it doesn't go crazy.

 

 PRM oplev servo was turned on with PITgain 0.5  and YAWgain  -0.7

Note: gain settings were PIT  1.0  and  YAW --0.5   on Jun 1, 2012 that I measured Feb 23, 2012

 It is still oscillating. Gains turned down to zero.

 Earthquake test our suspensions            PRM damping restored.             Oplev servo gains turned to zero.

Attachment 1: PRMeq.png
PRMeq.png
  7088   Mon Aug 6 09:46:31 2012 steveUpdateIOOpoweroutage turns laser off

. Power outage turned off the PSL Innolight laser on Sunday afternoon.  It  was turned back on and  locked happily right on. The green lasers were not effected.

 

CALIFORNIA INSTITUTE OF TECHNOLOGY

                 FACILITIES MANAGEMENT

            UTILITY & SERVICE INTERRUPTION

 

**PLEASE POST**

 

Building:         CAMPUS WIDE     

 

Date:             SUNDAY, AUGUST 6, 2012          

 

Time:             3:41 PM          

 

Interruption:     ELECTRICAL POWER DISTRIBUTION

  

Contact:          MIKE ANCHONDO, X-4999, OR TOM BRENNAN, X-4984      

 

* THIS PAST SUNDAY AFTERNOON ABOUT 3:40 PM, PASADENA WATER AND POWER

 EXPERIENCED A FAULT ON THEIR POWER DISTRIBUTION SYSTEM.  THIS CAUSED

  A SEVERE VOLTAGE SAG WHICH AFFECTED THE CALTECH CAMPUS. THE FAULT WAS

  NOT ON A CALTECH CIRCUIT.

 

(If there is a problem with this Interruption, please notify

the Service Center X-4717 or the above Contact as soon as possible.

If no response is received we will proceed with the interruption.)

        

                        Jerry Thompson,

                        Interim Director of Campus Operations & Maintenance

 

 

  7089   Mon Aug 6 10:53:32 2012 steveUpdateVACstatus: vauum normal

 

 The power outage did not have any effect on the vacuum system.  I had to open VM1 to the RGA because of flaky CC1 cold cathode gauge fluctuations.

We are running on the vertically positioned CC1 again.

Note: rga scans with closed VM1 are back ground scans.

Attachment 1: CCgauges.png
CCgauges.png
  7091   Mon Aug 6 16:48:43 2012 steveUpdateSUSSRM oplev is clipping

The SRM oplev beam is clipping.

  7106   Tue Aug 7 16:11:23 2012 steveUpdateSUSoptical table box wall proposal

 Sanwiched wall as shown: 1" clear acrylic, 2 layers of 0.004" thick "window tint", 1 layer of  0.007" thermashield and  0.125" yellow acrylic

Visibility: 70 %,    Transmission of 1064 nm  2-3 % at 0-50 degrees incident  power density 0.7 W/mm2

Max power 100 mW

        

Attachment 1: IMG_1479.JPG
IMG_1479.JPG
Attachment 2: IMG_1478.JPG
IMG_1478.JPG
  7154   Sun Aug 12 01:21:26 2012 steveUpdateSAFETYexit door left unlocked

Caltech security called me at 1am Sunday. Control room emergency exit door was found unlocked!

It is your responsibility to lock door if you unlocked it !

 

  7160   Mon Aug 13 15:31:09 2012 steveUpdateGenerallarger optical tables at the ends

I'm proposing larger optical tables at the ends to avoid the existing overcrowding. This would allow the initial pointing and optical level beams to set up correctly.

The existing table is 4 x 2 would be replaced by 4' x 3'   We would lose only ~3" space  toward exist door.

I'm working on the new ACRYLIC TABLE COVER for each end that will cost around $4k ea.  The new cover should fit the larger table.

Let me know what you think.

Attachment 1: ETMYtable.jpg
ETMYtable.jpg
Attachment 2: ETMY4X3.jpg
ETMY4X3.jpg
  7194   Wed Aug 15 16:01:47 2012 steveUpdateGenerallarger optical tables at the ends ?

The drawing of the 4' x 2'  table cover can be seen at entry  #6190 The new proposed wall #7106  The yellow acrylic would be ~ 0.25" thick and it will be the inside. It is not shown on the drawing.

Question remaining: should get a larger table 4' x 3' as outlined by red lines and make new cover to fit this

The oplev beam path needs larger incident angle to get in and out of the chamber: REMOVE BOTTLENECK for easy traffic

Moving the existing table closer to ETMY chamber - as Jamie suggested-  would help but there is no room for this solution.

The larger table solve this issue and leave more room for initial pointing, arm transmitted and future experiments.

Other benefits: no tube to make between table and chamber. It is easier to make the the larger box air tight.

The new isolation box with feed through, cover, seals will cost $4-5K ea

 

 

Attachment 1: bottleneck.jpg
bottleneck.jpg
  7248   Wed Aug 22 11:41:20 2012 steveUpdateGeneralgrout plate for optical table at the ends

Reinforced concrete grout plate for existing carbon steel stands at the ends.

 

Attachment 1: IMG_1561.JPG
IMG_1561.JPG
Attachment 2: 08231201.PDF
08231201.PDF
  7458   Mon Oct 1 17:03:01 2012 steveUpdateSUSETMY oplev relayed

Quote:

Quote:

Quote:

 

 The typical sign of a dying gas laser is that it glows for a few minutes only. The power supplies are fine.

Two new  JDS - Uniphase 1103P lasers ( NT64-104 )  arriving on Monday, May 21

 Yesterday I swapped in new He/Ne laser with output power 3.5 mW  The return spot on qpd is large ~6mm in diameter and 20,500 counts

The spot size reduction require similar layout as ETMX oplev.

 The oplev path is relayed and the spot size on the qpd is reduced. I still have to clean up and replace "Miki Mouse" lens holder.

There was no IP-ANG coming out of the chamber at this time!

 I did relayed the oplev path with new  f 500 mm lens

Attachment 1: IMG_1673oplevETMY.jpg
IMG_1673oplevETMY.jpg
  7538   Fri Oct 12 16:59:26 2012 steveUpdateSUSTT PITCH damping

Quote:

Quote:

 We can only decide the need of pitch damping when the coils are activated.

Could you tell us why? Are you thinking about induced current damping?

      I  was wrong The instability will be the same when the coils are actuated.

  7544   Mon Oct 15 08:08:33 2012 steveUpdateSUSPRM damping restored

Quote:

Quote:

Quote:

Quote:

Yuta claims he fixed the PRM oplev by centering it the other day, but no one has left it on and watched it for a long while, to make sure it's okay.  We watched it now for ~2 min, and it was good, but we're leaving the oplevs off anyway for the night.  Tomorrow we should restore PRM (it's currently restored), turn on the oplevs, and let it sit to make sure it doesn't go crazy.

 

 PRM oplev servo was turned on with PITgain 0.5  and YAWgain  -0.7

Note: gain settings were PIT  1.0  and  YAW --0.5   on Jun 1, 2012 that I measured Feb 23, 2012

 It is still oscillating. Gains turned down to zero.

 Earthquake test our suspensions            PRM damping restored.             Oplev servo gains turned to zero.

 The PRM damping restored. Oplev  PIT gain  0.15 and YAW  gain   -0.3 turned to zero.

  7652   Thu Nov 1 08:48:42 2012 steveUpdateAlignmentprogress, then setback - trend of BS table shift

Quote:

  But these jumps in the OSEMs are all at the level of 10-20 microns. Seems like that wouldn't be enough to account for anything; 20 microns / (pend length) ~ 50-60 microradians.

 BS table and suspensions are fine.

Attachment 1: alignmentstrugle2d.png
alignmentstrugle2d.png
Attachment 2: alignmentstrugle2da.png
alignmentstrugle2da.png
Attachment 3: befpd09252012.png
befpd09252012.png
  7831   Fri Dec 14 09:05:04 2012 steveUpdatePEMTT after eq 6.1

 

 SRM, ITMY and MC3 moved some what, but how are the TT? It may worth looking at them before we vent.

Attachment 1: eq6.1.png
eq6.1.png
  8240   Wed Mar 6 11:33:09 2013 steveUpdateSAFETYsafety audit 2013

 

                                                 Recommended correction list:

1,  refill- upgrade first aid boxes

2,  maintain 18" ceiling to bookshelf clearance so the ceiling fire sprinklers are not blocked: room 101

3,  label chilled water supply & return valves in IFO room

4,  calibrate bake room hoods annually

5,  update safety sign at fenced storage

 

              40m still to do list:

1,   clean and measure all safety glasses

2,   annual crane inspection is scheduled for 8am March 19, 1013

3,   make PSL encloser shelf earthquake proof

 

Do you see something that is not safe? Add it to this list please.

 

 

Attachment 1: IMG_0010.JPG
IMG_0010.JPG
  8287   Wed Mar 13 16:04:24 2013 steveUpdateSAFETYlaser safety glasses checked

 All safety glasses were cleaned in soapy water by Bob. I measured their transmission at 1064 nm, 150 mW,  beam diameter 1.5 mm  They are in working order, no transmission.

 Inventory:

10 pieces of KG-5, fit over, from Laser Safety

 4 pieces of KG-5, std size, from Drever Lab, best visibility

 1 piece of KG-5 coated for visible, std size, from Kentek

15 pieces of green-plastic LOTG-YAG, fit over, from UVEX

 7 pieces of green-plastic B-D+S 137, std areo fit, from Sperian

 3 pieces of green-plastic, old Thorlab, fit over

 2 pieces of green-plastic, fit over, from Laservision

 8 pieces of braun- plastic, fit over, for green & IR protection, from UVEX & Thorlabs

Attachment 1: safetyglasseschecked.jpg
safetyglasseschecked.jpg
  8309   Tue Mar 19 10:30:00 2013 steveUpdateSAFETYcrane inspection 2013

 

Professional crane inspector: Fred Goodbar found two small leaks at the Vertex trolley as he was conducting the annual inspection of the 40m cranes.  Otherwise the cranes are in safe condition.

Attachment 1: sippingOIL.jpg
sippingOIL.jpg
Attachment 2: 03191301.PDF
03191301.PDF
  8661   Fri May 31 10:25:17 2013 steveUpdatesafetyfirst aid kits refilled

Quote:

 

                                                 Recommended correction list:

1,  refill- upgrade first aid boxes

2,  maintain 18" ceiling to bookshelf clearance so the ceiling fire sprinklers are not blocked: room 101

3,  label chilled water supply & return valves in IFO room

4,  calibrate bake room hoods annually

5,  update safety sign at fenced storage

 

              40m still to do list:

1,   clean and measure all safety glasses

2,   annual crane inspection is scheduled for 8am March 19, 1013

3,   make PSL encloser shelf earthquake proof

 

Do you see something that is not safe? Add it to this list please.

 

 

 

Restocked First Aid Kits Location:

Main entrance, room 100

Drill press - above N2 cylinders, room 103

Control room, next to fire extinguisher, room  102

Vertex-north wall, IFO room 104

ETMY - right on ends light switches, IFO room 104_ east end

ETMX - on vertical I-beam of crane, IFO room 104_south end

Behind 1X3 Rack, on south wall - under instrument breakers panel PC-1, IFO room 104

 

Last thing remaining to be fixed from 2013 Safety Audit:

replace book shelf with 83" height

 

 

Attachment 1: refilledFAidK.jpg
refilledFAidK.jpg
  8687   Thu Jun 6 16:33:19 2013 steveUpdatesafetyupdated laser inventory

 Updated laser inventory and operator list. They are posted in the 40m wiki and entry doors of the 40m IFO room.

Let me know if this list needs correction.

Lightwave  M126N-1064-700 NPRO sn 337 in the PSL enclosure got connected to local emergency shut off switch. This is a LIGO operational safety requirement.

 

Attachment 1: ELSOconnected.jpg
ELSOconnected.jpg
  9090   Fri Aug 30 08:08:29 2013 steveUpdatesafetyfire horns-flashers tested OK

 

 We had fire alarm tests  and evacuation drills at 1:30pm yesterday. All flashers and horns are functioning unbearably loud and bright including clean assembly room.

  9653   Wed Feb 19 08:07:01 2014 steveUpdatesafetyannual laser safety glasses check

 

 All 40m laser safety glasses are cleaned and measured this morning.  Bring your own safety glasses if you have to enter the 40m IFO room.

 

Glasses were washed in 1% Liquinox water solution and  their transmission measured at  165 mW,  2 mm OD beam of 1064 nm

Attachment 1: AA2014checked.jpg
AA2014checked.jpg
Attachment 2: 2014check.jpg
2014check.jpg
  9672   Tue Feb 25 16:54:57 2014 steveUpdatesafetysafety audit 2014

 

 We had our annual safety inspection today.  Our SOPs are outdated. The full list of needed correction will be posted tomorrow.

 

The most useful found was that the ITMX-ISCT ac power is coming  from 1Y1 rack. This should actually go to 1Y2 LSC rack ?

 Please test this so we do not create more ground loops.

ELOG V3.1.3-