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ID Date Authorup Type Category Subject
  11928   Tue Jan 12 08:40:06 2016 SteveUpdatePEMAir cond maintenance

Air condition maintenance is happening. It should be done by 10am

  11932   Thu Jan 14 13:44:05 2016 SteveUpdateSUS earthquake 3.6M

No obvious sign of damage.

 

Attachment 1: 3.6M_JohannesburgCA.png
3.6M_JohannesburgCA.png
Attachment 2: ETMX_3.6_M.png
ETMX_3.6_M.png
  11935   Tue Jan 19 10:25:53 2016 SteveUpdateSUSEQ 3.6M Ludlow

Just an other local earthquake 3.6 Mag Ludlow, Ca

No obvious sign of damage

 

Attachment 1: EQ_3.6M_Ludlow.png
EQ_3.6M_Ludlow.png
  11939   Wed Jan 20 09:36:11 2016 SteveUpdateSUSETMX damping restored

ETMX suspension damping restored.

 

Attachment 1: EQ.png
EQ.png
  11948   Mon Jan 25 08:36:46 2016 SteveUpdateSUSPRM damping restored

PRM suspension damping restored after 4.1 Mag Ludlow earthquake.

 

Attachment 1: EQ4.1mLudlow.png
EQ4.1mLudlow.png
Attachment 2: EQ7.1mAlaska_4.1mLudlow.png
EQ7.1mAlaska_4.1mLudlow.png
Attachment 3: 7.1_4.1.png
7.1_4.1.png
  11949   Mon Jan 25 11:06:08 2016 SteveUpdatePEMnoisy fan belt replaced

The noisy fan belt on the roof of the control room was finally replaced on Friday, Jan 22 2016

Quote:

Air condition maintenance is happening. It should be done by 10am

 

  11950   Tue Jan 26 15:07:47 2016 SteveUpdatePEMaccelerometers moved to ETMX

Objective:  measure the noise floor on the optical table and the floor so we can decide if the table needs better anchoring before swapping in

                   the larger optical table

The accelerometrs labeled as MC1 ( just north east  of IOO chamber floor ) and MC2 ( north east leg of MC2 table floor ) were moved:

MC1 to the floor at the north west leg of optical table.

MC2 is in the north east corner of the optical table

Atm2 was taken after table leg bolts were tighed at 40 ft/lb

The spectrum looks similar to ETMY     (Guralp for below 3 Hz )  except  the Z direction 

ETMY  .

Attachment 1: ETMX_floor_vs_optab.png
ETMX_floor_vs_optab.png
Attachment 2: ETMX_floor_vs_optabtop.png
ETMX_floor_vs_optabtop.png
  11952   Wed Jan 27 08:17:38 2016 SteveUpdatePEMETMX floor vs table noise

 

Quote:

Objective:  measure the noise floor on the optical table and the floor so we can decide if the table needs better anchoring before swapping in

                   the larger optical table

The accelerometrs labeled as MC1 ( just north east  of IOO chamber floor ) and MC2 ( north east leg of MC2 table floor ) were moved:

MC1 to the floor at the north west leg of optical table.

MC2 is in the north east corner of the optical table

Atm2 was taken after table leg bolts were tighed at 40 ft/lb

The spectrum looks similar to ETMY       except  the Z direction 

ETMY .

Conclusion: up to 20 Hz this set up is good.

Attachment 1: ETMX_X_floor_vs_table.png
ETMX_X_floor_vs_table.png
Attachment 2: ETMX_Y_floor_vs_table.png
ETMX_Y_floor_vs_table.png
Attachment 3: ETMX_Z_floor_vs_table.png
ETMX_Z_floor_vs_table.png
Attachment 4: MC1@ETMX.jpg
MC1@ETMX.jpg
Attachment 5: MC2@1Winno.jpg
MC2@1Winno.jpg
Attachment 6: MC2@ETMXtable.jpg
MC2@ETMXtable.jpg
  11959   Fri Jan 29 08:18:13 2016 SteveUpdatePEMPEM

 

Quote:

Air condition maintenance is happening. It should be done by 10am

 

Attachment 1: PEM.png
PEM.png
  11960   Fri Jan 29 09:59:23 2016 SteveUpdateVACvacuum control upgrade

Rana stated yesterday that there will be a vacuum control update in the close future. Witnesses : Rich, Chris and Dave

Can you give me this in writing?

 

Attachment 1: 1100days.png
1100days.png
  11961   Fri Jan 29 14:43:47 2016 SteveUpdateGreen LockingInnolight laser is 10 years old
Quote:

After adjusting the alignment of the two beams onto the PD, I managed to recover a stronger beatnote of ~ -10dBm. I managed to take some measurements with the PLL locked, and will put up a more detailed post later in the evening. I turned the IMC autolocker off, turned the 11MHz Marconi output off, and closed the PSL shutter for the duration of my work, but have reverted these to their nominal state now. The are a few extra cables running from the PSL table to the area near the IOO rack where I was doing the measurements from, I've left these as is for now in case I need to take some more data later in the evening...I

Innolight 1W 1064nm, sn 1634 was purchased in 9-18-2006 at CIT. It came to the 40m around 2010

It's diodes should be replaced, based on it's age and performance.

RIN and noise eater bad. I will get a quote on this job.

The Innolight Manual frequency noise plot is the same as Lightwave' elog 11956

Attachment 1: inno1W.pdf
inno1W.pdf
  11965   Mon Feb 1 09:16:32 2016 SteveUpdatePEMRat got cut

We got it! Traps are removed.

 

Attachment 1: bingo.jpg
bingo.jpg
Attachment 2: bingo3.png
bingo3.png
  11966   Mon Feb 1 14:08:06 2016 SteveUpdatePEMroof condtion is good

It rained hard yesterday. We have not had this strong downpoor for years. We got 0.7" and the roof did not leak.

  11972   Wed Feb 3 08:39:17 2016 SteveUpdateCDSblank daily summary pages

Daily summary pages are blank today. Yesterday is ok

  11975   Thu Feb 4 10:14:52 2016 SteveUpdateSUS earthquake 3.5M

 

 

Attachment 1: EQ3.5m_Simmier.Ca.png
EQ3.5m_Simmier.Ca.png
  11976   Thu Feb 4 10:19:05 2016 SteveUpdatesafetyfire marshal inspection

Pasadena fire marshal inspected the lab today. No violation was found.

  11980   Mon Feb 8 09:37:07 2016 SteveUpdateSUS EQ 3.9m

No sign of damage

 

Attachment 1: EQ3.9mSimmierCa.png
EQ3.9mSimmierCa.png
  11986   Thu Feb 11 14:28:50 2016 SteveUpdateTreasure091415 declared

   Beautifully Done

   Chirp

  what is next?

Atm 3, Ron Drever could not celebrate with us because of health issues.

 

Attachment 1: 091415declared.jpg
091415declared.jpg
Attachment 2: You_were_right!.jpg
You_were_right!.jpg
Attachment 3: P1080312.JPG
P1080312.JPG
  11987   Fri Feb 12 11:10:49 2016 SteveUpdateGreen LockingInnolight laser is 10 years old

It shipped out for repair evaluation.

Arrived to Hayward,CA   2016Feb16

 

Attachment 1: inno1W.jpg
inno1W.jpg
  11992   Tue Feb 16 09:13:39 2016 SteveUpdateGeneralthere was a power outage & EQ

Pasadena reported the Sunday night event as a power transient caused by the trip of a power transmission line. This affected the entire city. Once the loss was detected, the system automatically switches to an alternate source. It was about one second for the system to recover.

 

2W Innolight, both Lightwaves at the ends, PSL HEPA, Ref Cavity and 3 AC units  turned on.

The 40m vacuum did not trip. It is vacuum normal.

The Jetstore computer is indicating power failer.

 

EQ  3.9 4.9 km (3.1 mi) NNW of Big Bear City, CA34.3027, -116.863, 3km Feb 16 2016 09:24:21 UTC 37524376

 

Attachment 1: 20160215_power_outage.png
20160215_power_outage.png
  11996   Wed Feb 17 09:05:07 2016 SteveUpdateVACforepump replaced

TP3 drypump replaced after 10,344 hrs at 750 mTorr foreline pressure.

The foreline pressure is 13 mTorr after 8 hrs of running, TP3: 50K rpm, 0.14 Amp with all annuloses pumped.

The annulos pressures are 0.3 - 5 mtorr

************************

Frame builder just crashed again

Attachment 1: jetStoreCrashedAgain.png
jetStoreCrashedAgain.png
  12001   Mon Feb 22 08:45:46 2016 SteveUpdateSUSEQ 4.3 grabs ITMX-UL magnet

Local EQ4.3

kicks ITMX-UL magnet into stuck position.

Hopefully it is only sticking.

Attachment 1: EQ4.3LucerneV.png
EQ4.3LucerneV.png
Attachment 2: ITMX-UL.png
ITMX-UL.png
  12004   Tue Feb 23 09:51:34 2016 SteveUpdateSUSITMX free

Good job Q! Give us more details please or  play Rachmaninoff Piano Concernto #2

Atm2,  EQ 3.5 and 4.1 

          confirming ITMX is really free

Quote:

Taking inspiration from J. Lewis et. al, ITMX has been freed. 

Even better, I'm now seeing Green flashes in the X arm.  cool

 

Attachment 1: ITMX_FREED.png
ITMX_FREED.png
Attachment 2: ITMX_FREE.png
ITMX_FREE.png
  12007   Wed Feb 24 09:06:25 2016 SteveUpdateTreasurethe way it happened

 Celebration

Quote:

   Beautifully Done

   Chirp

  what is next?

Atm 3, Ron Drever could not celebrate with us because of health issues.

 

 

Attachment 1: IMG_0120.JPG
IMG_0120.JPG
  12008   Wed Feb 24 10:27:23 2016 SteveUpdatesafetysafety audit 2016

Safety audit went smothly.

Crane inspection is scheduled for March 4

Safety glasses will be measured before April 1

 

Attachment 1: audit2016.jpg
audit2016.jpg
  12010   Thu Feb 25 11:02:36 2016 SteveUpdateGeneralPower Glitch again
Quote:

Chiara reports an uptime of >195 days, so its UPS is working fine yes

FB, megatron, optimus booted via front panel button.

Jetstor RAID array (where the frames live) was beeping, since its UPS failed as well. The beep was silenced by clicking on "View Events/Mute Beeper" at 192.168.113.119 in a browser on a martian computer. I've started a data consistency check via the web interface, as well. According to the log, this was last done in July 2015, and took ~19 hrs.

Frontends powered up; models don't start automatically at boot anymore, so I ran rtcds start all on each of them. 

All frontends except c1ioo had a very wrong datetime, so I ran sudo ntpdate -b -s -u pool.ntp.org on all of them, and restarted the models (just updating the time isn't enough). There is an /etc/ntp.conf in the frontend filesystem that points to nodus, which is set up as an NTP server, but I guess this isn't working.

PMC locking was hindered by sticky sliders. I burtrestored the c1psl.snap from Friday, and the PMC locked up fine. (One may be fooled by the unchanged HV mon when moving the offset slider into thinking the HV KEPCO power supplies need to be brought down and up again, but it's just the sliders)

Mode cleaner manually locked and somewhat aligned. Based on my memory of PMC camera/transmission, the pointing changed; the WFS need a round of MC alignment and WFS offset setting, but the current state is fine for operation without all that. 

10:15 power glitch today. ETMX Lightwave and air conditions turned back on

Attachment 1: powerGlitch.png
powerGlitch.png
  12015   Wed Mar 2 10:09:28 2016 SteveUpdatesafetyprofessional crane inspection

The crane inspection is scheduled for this coming Friday from 8-12

 

  12018   Thu Mar 3 10:19:20 2016 SteveUpdatesafetysafety audit 2016

Bob cleaned the safety glasses. They were sonicated in warm 2% Liquinox  water for 10 minutes.  Steve checked them by transmission measurement of 1064 nm at 150 mW

 

Attachment 1: checkedSG.jpg
checkedSG.jpg
  12020   Fri Mar 4 11:07:10 2016 SteveUpdatesafety crane inspection completes 2016 safey audit

All 3 cranes inspected by professional and load tested with 450 lbs at max reach.

 

Attachment 1: craneInsp2016.jpg
craneInsp2016.jpg
  12031   Fri Mar 11 16:52:53 2016 SteveUpdatePEMleaky roof

Johannes found dripping water at the vac rack. It is safe. It is not catching anything. Actual precipitation was only 0.62"

Attachment 1: leakyRoof.jpg
leakyRoof.jpg
Attachment 2: leakyRoofA.jpg
leakyRoofA.jpg
  12035   Tue Mar 15 10:31:58 2016 SteveUpdateIOOLaser is turned back on

It's may be the janitor's doing.

I noticed that the HEPA filers were off. They are turned on at 20%
 

Attachment 1: 2WlaserOff-On.png
2WlaserOff-On.png
  12036   Wed Mar 16 15:36:03 2016 SteveUpdateSUSwire standoff test cut

Ruby wire standoff 1 mm od. with V-groove test cut. SOS sus wire 0.0017" od. is in the background.
 

Attachment 1: 0182_-_20160316_135935.png
0182_-_20160316_135935.png
  12038   Fri Mar 18 11:04:56 2016 SteveUpdateSUSinverted pendulum

Kate Dooley picked up this item today.

Attachment 1: invPeng.jpg
invPeng.jpg
  12039   Mon Mar 21 10:07:45 2016 SteveUpdateSUSETMX enclosure update

The enclosure top piece in the middle is still in the machine shop.

The carpenter who helps in the built just left for one week vacation.

The unit will be ready  on April 1

I'd prefer doing the installation with the enclosure on the new table.

It's the only way to minimize the resonances of the enclosure with shimming.

Attachment 1: ETMXenclosure.jpg
ETMXenclosure.jpg
  12040   Mon Mar 21 14:29:32 2016 SteveUpdateCalibration-Repair1W Innolight laser repair diagnoses

 

Quote:
Quote:

After adjusting the alignment of the two beams onto the PD, I managed to recover a stronger beatnote of ~ -10dBm. I managed to take some measurements with the PLL locked, and will put up a more detailed post later in the evening. I turned the IMC autolocker off, turned the 11MHz Marconi output off, and closed the PSL shutter for the duration of my work, but have reverted these to their nominal state now. The are a few extra cables running from the PSL table to the area near the IOO rack where I was doing the measurements from, I've left these as is for now in case I need to take some more data later in the evening...I

Innolight 1W 1064nm, sn 1634 was purchased in 9-18-2006 at CIT. It came to the 40m around 2010

It's diodes should be replaced, based on it's age and performance.

RIN and noise eater bad. I will get a quote on this job.

The Innolight Manual frequency noise plot is the same as Lightwave' elog 11956

Diagnoses from Glasglow:

“So far we have analyzed the laser. The pump diode is degraded. Next we would replace it with a new diode. We would realign the diode output beam into the laser crystal. We check all the relevant laser parameters over the whole tuning range. Parameters include single direction operation of the ring resonator, single frequency operation, beam profile and others. If one of them is out of spec, then we would take actions accordingly. We would also monitor the output power stability over one night. Then we repackage and ship the laser.”

  12041   Tue Mar 22 14:12:18 2016 SteveUpdateIOOLaser is turned back on

The 2W Innolight was turned on.

 

Attachment 1: off-onAgain.png
off-onAgain.png
  12043   Wed Mar 23 11:55:47 2016 SteveUpdateGeneral Smart UPS 2200 Battery Replaced

Batteries replaced in control room UPS after 3 years from replaceUPSbattery.com

 

 

  12044   Wed Mar 23 15:23:12 2016 SteveSummaryPEMGuralps as connected

We have one calibration sheet of GUR- B, from 26 June 2008,    model CMG-T40-0008,  sn T4157       at  ETMY  east,  interface box input 1

I'm looking for calibration paper of GUR- A,                                model CMG-T40-0053,  sn T4Q17      at ETMX   south, interface box input 2

Quote:

I measured the guralp raw outputs and the TFs using the handheld unit and an FFT analyzer.

[Setup]

The handheld unit was connected to each guralp with the same cable which is confirmed t be functional with the Yend Guralp.

The signal for Z, N, and E directions are obtained from the banana connectors on the handheld unit. Each direction has mass, low gain velocity, and high gain velocity output. The PSDs of the signals were measured with an FFT analyzer. The transfer function from the mass signal to the low/high gain signals were also measured for each direction.

The adjustment screw for the E output of the Xend does not work. I had to tilt the Xend Guralp using the leg screws to bring the E signal to zero.

[Result]

Attachment 1: Raw voltage PSD for all outputs
Attachment 2: Comparison of the low gain vel outputs

- All of the mass output show similar PSDs.
- Low gain velocity outputs shows somewhat similar levels. I still need to check if the output is really the ground velocity or not.
- High gain velocity outputs are either not high gain, broken, or not implemented.

- We need to calibrate the low gain output using signal injection, huddle test, or something else.

Attachment 3: TFs between each mass output and the low or high gain outputs

- TFs between the mass signal and the low vel signals show the similar transfer functions between the channels.
- The high gain outputs show low or no transfer function with regard to the mass signals.
 

 

Attachment 1: GUR_A.jpg
GUR_A.jpg
Attachment 2: GUR_B.jpg
GUR_B.jpg
Attachment 3: GUR_Interface_Box.jpg
GUR_Interface_Box.jpg
  12045   Thu Mar 24 07:56:09 2016 SteveUpdateCalibration-RepairNO Noise Eater for 1W Innolight

1W Innolight is NOT getting Noise Eater as it was decided yesterday at the 40m meeting. Corrected 3-25-2016

Repair quote with adding noise eater is in 40m wiki

Quote:

 

Quote:
Quote:

After adjusting the alignment of the two beams onto the PD, I managed to recover a stronger beatnote of ~ -10dBm. I managed to take some measurements with the PLL locked, and will put up a more detailed post later in the evening. I turned the IMC autolocker off, turned the 11MHz Marconi output off, and closed the PSL shutter for the duration of my work, but have reverted these to their nominal state now. The are a few extra cables running from the PSL table to the area near the IOO rack where I was doing the measurements from, I've left these as is for now in case I need to take some more data later in the evening...I

Innolight 1W 1064nm, sn 1634 was purchased in 9-18-2006 at CIT. It came to the 40m around 2010

It's diodes should be replaced, based on it's age and performance.

RIN and noise eater bad. I will get a quote on this job.

The Innolight Manual frequency noise plot is the same as Lightwave' elog 11956

Diagnoses from Glasglow:

“So far we have analyzed the laser. The pump diode is degraded. Next we would replace it with a new diode. We would realign the diode output beam into the laser crystal. We check all the relevant laser parameters over the whole tuning range. Parameters include single direction operation of the ring resonator, single frequency operation, beam profile and others. If one of them is out of spec, then we would take actions accordingly. We would also monitor the output power stability over one night. Then we repackage and ship the laser.”

 

  12046   Thu Mar 24 08:20:52 2016 SteveUpdatePEMGuralp-A calibration sheet

Calibration Data

All Guralp instruments and digitisers are provided with calibration documentation. Should you require a copy of calibration information for any product, email caldoc@guralp.com with the serial number of the product in the subject field and calibration information will be sent to you through email.

See data in the 40m wiki

 

  12050   Mon Mar 28 08:30:09 2016 SteveUpdateSUSPRM damping restored

Recent  EQ 4.8 mag San Felipe, Mexico trips PRM sus damping.

PRM damping restored. PMC locked.

Attachment 1: shaking.png
shaking.png
  12051   Mon Mar 28 10:43:18 2016 SteveUpdateendtable upgradeETMX 4'x2' optical table pictures

 

 

Attachment 1: ETMX4x2Layout.jpg
ETMX4x2Layout.jpg
Attachment 2: ETMX_4x2.JPG
ETMX_4x2.JPG
Attachment 3: ETMXopt_4x2.JPG
ETMXopt_4x2.JPG
  12057   Thu Mar 31 09:38:41 2016 SteveUpdateendtable upgradeY end 4x3 existing layout

Beam colors: 1064 nm red, 514 nm green and 633 nm yellow.

There should be room for lens in front of the pd at red3 and a mirror for alignment in the new layout.

This picture may help you how to improve the new ETMX 4' x 3' optical layout.

 

Attachment 1: ETMY4x3layout.jpg
ETMY4x3layout.jpg
  12062   Tue Apr 5 08:55:51 2016 SteveUpdateSUSlocal EQ 3.1m

Local earth quake 3.1 magnitude in Valencia, Ca did not trip our suspensions.

 

Attachment 1: eq3.1Valencia.png
eq3.1Valencia.png
  12067   Thu Apr 7 14:30:58 2016 SteveUpdateendtable upgradeETMX table height

 

Quote:

Steve has finished installing the enclosure on the new endtable. So Eric and I decided to try and lock the X arm and measure the beam height of the transmitted IR beam relative to the endtable. We initially thought of using POX DC as a the LSC trigger but this did not work as there was no significant change in it when the arm was flashing. Eric then tried misaligning the ITM and using AS110 as a trigger - this worked. We then recompiled the ASS model to take AS110 as an input, and ran the dither alignment. After doing so, I measured the beam height at two points on the new endtable.

Bottom line:

  • The beam is roughly level across the table (along the North-South direction, within the precision to which I could place the irides and measure the height). The table has also been levelled pretty well...
  • The beam height is ~4.7" across the endtable

So the beam is about 0.7" higher relative to the endtable than we'd like it to be. What do we do about this?

  • Is it even possible to raise the table by 0.7" so we can have a level beam everywhere? Are there some constraints related to how the enclosure is attached to the window?
  • Are we okay with tolerating a solution where we keep the beam level at 4", and use Y10 and Y11 (see layout in elog 12060) to raise the beam by 0.7", and then have slightly higher posts for the optics downstream of this point?

I've also placed two irides extending the cavity axis on the endtable. These should be helpful in aligning the green to the arm eventually.

The new TMC 4' x 3' x4" optical table and enclosure is installed - aligned- leveled.

Atm2,  Picture is taken ~42" from the window at 3.75 camera height. The leveled table height is wthin 1/4 at the center of the window.

I think this is close enough to move on with the installation of the optics.

We can raise the loaded table in the future if it is needed.

Atm4, Optical table height to floor 33" at the south west corner

Atm3, Enclosure top cover transmission at 1064 nm, 1mm beam size, power level 157 mW, 0 degree incident angle,   T 1.3% Metal shield is required above 100 mW hitting the wall of the enclosure!

Atm5, window to enclosure Kapton seal

Attachment 1: ETMXbrs.png
ETMXbrs.png
Attachment 2: ETMX.jpg
ETMX.jpg
Attachment 3: IMG_0618.JPG
IMG_0618.JPG
Attachment 4: ETMX.jpg
ETMX.jpg
Attachment 5: ETMXwc.jpg
ETMXwc.jpg
  12068   Fri Apr 8 09:13:20 2016 SteveUpdateendtable upgradeETMX-T beam height

X arm resonating after alignment, beam height on ETMX optical table ~4.75"

 

Attachment 1: ETMXalignedT.png
ETMXalignedT.png
Attachment 2: ETMXF.jpg
ETMXF.jpg
  12070   Mon Apr 11 17:03:41 2016 SteveUpdateCalibration-Repair1W Innolight repair completed

The laser is back. Test report is in the 40m wiki as New Pump Diode Mephisto 1000

It will go on the PSL table.

  12071   Tue Apr 12 09:14:57 2016 SteveUpdateSUSRuby wire - v - groove cut pictures

The ruby wire standoff V groove cuts are looking good.

I will request free sample of  sapphire prizm where one side would have SOS's R cylindrical surface.

The present plan to have the v-groove on this prism.

 

Attachment 1: Sapphire_prism_wire_standoff.JPG
Sapphire_prism_wire_standoff.JPG
  12074   Wed Apr 13 11:00:28 2016 SteveUpdateendtable upgradeX endtable repopulation

ETMX optical table is grounded to ETMX chamber through 1 Mohms

The doubling oven temp controller is installed to reach its cable.

 

  12082   Tue Apr 19 10:58:53 2016 SteveUpdatesafetysafety scans at PSL & tables

The PSL had one 1064 nm beam to be blocked around the north east side. The end enclosures are fine.

 

 

ELOG V3.1.3-