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ID Date Authorup Type Category Subject
  12964   Wed May 3 16:02:36 2017 SteveUpdateGeneralPI pzt inventory check

One is broken, two are ready to steer green and 3 available in un known condition

 

Attachment 1: IMG_3678.JPG
IMG_3678.JPG
Attachment 2: PIpztETMYgreen.jpg
PIpztETMYgreen.jpg
  12970   Thu May 4 08:00:54 2017 SteveUpdatesafetysafety training

Freshmen Rebecca Zhang as " work study undergrad "  received 40m specific basic safety training yesterday.

  12973   Fri May 5 08:41:42 2017 SteveUpdateCamerasMC2 resonant pictures

Olympus SP570 UZ - without  IR blocker, set up as Atm.3  Camera distance to MC  face ~85 cm,  IOO-MC_TRANS_SUM 16,300 counts, Lexan cover on not coated viewport.

Image mode: RAW + JPG,  M-costum,  manual focus,  Lens: Olympus 4.6 - 92 mm, f2.8 - 4.5,  Apeture: F2.8 - 8,  Image pick up device: 1/2.33" CCD (primary color filter)

Atm.1,       212k.jpg of raw 15 MB,  exp 0.025s,   apeture 2.97,  f 4.6,   iso 64,  

Atm.2,        Copied through my Cannon S100  (  3.3 MB.jpg of raw from UFraw photo shop )I will look up the original raw file for details.

 

Attachment 1: P5040028MC2c.jpg
P5040028MC2c.jpg
Attachment 2: IMG_3682.JPG
IMG_3682.JPG
Attachment 3: IMG_3688.JPG
IMG_3688.JPG
  12978   Tue May 9 15:23:12 2017 SteveConfigurationComputerscatastrophic multiple monitor failures

Gautam and Steve,

Surge protective power strip was install on Friday, May 5 in the Control Room

Computers not connected to the UPS are plugged into Isobar12ultra.

Quote:

That's a new failure mode. Probably we can't trust the power to be safe anymore.

Need Steve to order a couple of surge suppressing power strips for the monitors. The computers are already on the UPS, so they don't need it.

 

Attachment 1: Trip-Lite.jpg
Trip-Lite.jpg
  12994   Tue May 16 16:16:16 2017 SteveUpdatesafetysafety training

 Early surfs of India Jigyasa and Kaustubh received basic 40m specific safety traning.

Attachment 1: surfs2017.jpg
surfs2017.jpg
  12995   Wed May 17 08:19:59 2017 SteveUpdateSUS4.1M earthquake

Sus dampings recovered. ETMY oplev needs to be recentered.

GV May 17 11am: I shut down the BS, SRM, ITMX and ITMY watchdogs, as the coil-driver boards for these optics are presently not installed.
 

Attachment 1: eq_4.1_SantaBarbara.png
eq_4.1_SantaBarbara.png
Attachment 2: 4.1m_Isla_Vista_CA.png
4.1m_Isla_Vista_CA.png
  12996   Wed May 17 11:10:31 2017 SteveUpdateCamerasMC2 CCD video camera back in place

Olympus camera is removed and our old CCD camera is back to monitor the face of MC2

Quote:

Olympus SP570 UZ - without  IR blocker, set up as Atm.3  Camera distance to MC  face ~85 cm,  IOO-MC_TRANS_SUM 16,300 counts, Lexan cover on not coated viewport.

Image mode: RAW + JPG,  M-costum,  manual focus,  Lens: Olympus 4.6 - 92 mm, f2.8 - 4.5,  Apeture: F2.8 - 8,  Image pick up device: 1/2.33" CCD (primary color filter)

Atm.1,       212k.jpg of raw 15 MB,  exp 0.025s,   apeture 2.97,  f 4.6,   iso 64,  

Atm.2,        Copied through my Cannon S100  (  3.3 MB.jpg of raw from UFraw photo shop )I will look up the original raw file for details.

 

 

  13008   Tue May 23 16:33:00 2017 SteveUpdateOptical LeversBeam Profiling Results

You may compare your results with this.

RXA: please no, that's not the right way

  13018   Tue May 30 13:36:58 2017 SteveUpdateOptical LeversETMY Oplev HeNe is replaced

Finally I reallized what is killing the ETMY oplev laser. Wrong  power supply, it  was driving the HeNe laser by 600V higher voltage than recommended. Power supply 101T-2300Vdc replaced by 101T-1700Vdc ( Uniphase model 1201-1, sn 2712420 )

The laser head 1103P, sn P947049 lived for 120 days and it was replaced by sn P964431   New laser output 2.8 mW,  quadrant sum 19,750 counts

 

Attachment 1: oplevETMY120d.png
oplevETMY120d.png
  13030   Thu Jun 1 16:21:55 2017 SteveUpdateSUS wire standoffs update

Ruby wire standoff received from China. I looked one of them with our small USB camera.  They did a good job. The  long edges of the prism are chipped.

The v-groove cutter must avoid them. Pictures will follow.

 

  13039   Mon Jun 5 10:30:45 2017 SteveUpdateSUSruby wire standoff pictures

Atm 1 & 5, showing the ruby R ~10 mm as it is seated on Al SOS test mass

Atm. 2, 3 & 4  chipped long edges with SOS sus wire OD 43 micron as  calibration

Quote:

Ruby wire standoff received from China. I looked one of them with our small USB camera.  They did a good job. The  long edges of the prism are chipped.

The v-groove cutter must avoid them. Pictures will follow.

 

 

Attachment 1: A087_R.png.bmp
A087_R.png.bmp
Attachment 2: A097_chipped_edges.png.bmp
A097_chipped_edges.png.bmp
Attachment 3: A099_cal_wire.png.bmp
A099_cal_wire.png.bmp
Attachment 4: A101_cal_wire_43_micron.png.bmp
A101_cal_wire_43_micron.png.bmp
Attachment 5: Al_SOS_R39mm.jpg
Al_SOS_R39mm.jpg
  13045   Tue Jun 6 09:14:26 2017 SteveUpdateCamerasGigE installation at MC2

50mm 1.8 lens with Basler camera at MC2 face with micro clamp 350617    Camera manuals plus

Quote:

Thanks to Steve and Gautam, the IMC was locked.

I was able to capture images with the Rainbow 50 mm lens at exposure times of 100, 300, 1000, 3000, 10000 and 30 microseconds.(The pictures are in the same order). These pictures were taken at a gain of 300 and black level 64.

Special credits to Steve spent a lot of time help me a with setting up the hardware and focusing on the beam spot with the camera. 
I can't thank you enough Steve! :) 

Quote:

In the afternoon, Steve and I tried to install the camera near MC2 and get some images of the mirrors. Due to a restricted field of view of the lens on the camera, after many efforts to focus on the optic, we were able to get this image. MC2 was unlocked so this image captures some resonating higher order mode.

With MC2 locked, I will get some images of the mirror at different exposure times and try to get an HDR image.  
 

 

Attachment 1: MC2.jpg
MC2.jpg
  13046   Wed Jun 7 10:07:00 2017 SteveUpdatePEMair condition thermostate

The Y arm ac thermostate was calibrated after cooling water relay replacement by Mike.... yesterday. The set temp is remaind to be 70F

The east end south wall temp is reading 22C

  13047   Wed Jun 7 11:32:56 2017 SteveUpdateVACsmooth vac reboot

Gautam and Steve,

 

The medm monitor & vac control screens were totally blank since ~ May 24, 2017    Experienced vacuum knowledge is required for this job.

IDENTIFY valve configuration:

                        How to confirm valve configuration when all vac mons are blank?  Each valve has a manual-mechanical position indicator. Look at pressure readings and turbo pump controllers. VAC NORMAL configuration was confirmed based on these information.

Preparation: disconnect valves ( disconnect meaning: valve closes and stays paralized ) in this sequence VC2, VC1 power, VA6, V5, V4 & V1 power,      at ifo pressure 7.3E-6 Torr-it  ( it  = InstruTech cold cathode gauge )

                            This gauge is independent from all other rack  mounted   instrumentation and it is still not logged.

                            Switching to this valve configuration with disconnected valves will insure NOT  venting of the vacuum envelope by accidental glitching voltage drop or computer malfunction.

RESET  v1Vac1 .........in 2-3 minutes........ ( v1Vac1 - 2 )  the vac control screen started reading pressures & position

                    Connected cables to valves (meaning: valve will open if it was open before it was disconnected and it will be control able from computer ) in the following order: V4, V1 power, V5, VA6, VC2 & VC1 power,      at ifo 2E-5 Torr-it.....

                     ....vac configuration is reading VAC NORMAL,

                     ifo 7.4E-6 Torr-it

We have to hook up the it-cold cathode gauge to be monitored - logged !  this should be the substitute for the out of order CC1 pressure gauge.

Attachment 1: vac_reboot.png
vac_reboot.png
  13049   Wed Jun 7 14:27:23 2017 SteveUpdateSummary Pagessummery pages not working

Last good page May 18, 2017

Not found, error message May 19 - June 4,2017

Blank plots,  June 5, 2017

  13050   Wed Jun 7 15:41:51 2017 SteveUpdateComputerswindow laptop scanned

Randy Trudeau scanned our Window laptop Dell 13" Vostro and Steve's memory stick for virus. Nothing was found. The search continues...

Rana thinks that I'm creating these virus beasts with taking pictures with Dino Capture and /or Data Ray on the window machine........

 

 

  13054   Fri Jun 9 09:13:26 2017 SteveUpdateCamerasGigE camera lens with AR

We should move on with getting this lens from Edmonds #67-717  at 1064 R<3% 

Computar M5018-SWIR is an other choice

AR coatings 500 - 1100nm R<1% are expensive.

 

Quote:

50mm 1.8 lens with Basler camera at MC2 face with micro clamp 350617    Camera manuals plus

 

Attachment 1: coating_curve.pdf
coating_curve.pdf
  13062   Tue Jun 13 08:40:32 2017 SteveUpdateIMCIMC wonkiness

Happy MC after last glitch at 10:28 so the credit goes to Rana

GV edit 11:30am: I think the stuff at 10:28 is not a glitch but just the WFS servos coming on - the IMC was only hand aligned before this.

Quote:

It happened again. MC2 UL seems to have gotten the biggest glitch. It's a rather small jump in the signal level compared to what I have seen in the recent past in connection with suspect Satellite boxes, and LL and UR sensors barely see it.

I will squish Sat box cables and check the cabling at the coil driver board end as well, given that these are two areas where there has been some work recently. WFS loops will remain off till I figure this out. At least the (newly centered) DC spot positions on the WFS and MC2 TRANS QPD should serve as some kind of reference for good MC alignment.

GV edit 9pm: I tightened up all the cables, but doesn't seem to have helped. There was another, larger glitch just now. UR and LL basically don't see it at all (see Attachment #2). It also seems to be a much slower process than the glitches seen on MC1, with the misalignment happening over a few seconds (it is also a lot slower). I have to see if this is consistent with a glitch in the bias voltage to one of the coils which gets low passed by a 4xpole@1Hz filter.

Quote:

Once we had the beam approximately centered for all of the above 3 PDs, we turned on the locking for IMC, and it seems to work just fine. We are waiting for another hour for switching on the angular allignment for the mirrors to make sure the alignment holds with WFS turned off.

 

 

Attachment 1: happy_MC.png
happy_MC.png
Attachment 2: last_glitch.png
last_glitch.png
  13074   Tue Jun 20 14:58:08 2017 SteveUpdateCamerasGigE camera at ETMX

GigE can be connected to ethernet. AR coated 1064 f50 can arrive any day now.

Quote:

One of the additional GigE cameras has been IP configured for use and installation. 

Static IP assigned to the camera- 192.168.113.152
Subnet mask- 255.255.255.0
Gateway- 192.168.113.2
 

 

Attachment 1: ETMXgige.jpg
ETMXgige.jpg
  13075   Tue Jun 20 16:28:23 2017 SteveUpdateVACRGA scan
Attachment 1: RGAscan243d.png
RGAscan243d.png
Attachment 2: RGAscan.png
RGAscan.png
  13095   Wed Jul 5 10:23:18 2017 SteveUpdatesafetyliquid nitrogen boil off

The liquid nitrogen container has a pressure releif valve set to 35 PSI  This valve will open periodically when contains LN2

The exiting  very cold gas can cause burning so it should not hit directly your eyes or skin.  Set the pointing of this valve into the corner.

Leave entry door open so nitrogen concentration can not build up.

Oxygen deficiency
Nitrogen can displace oxygen in the air, reducing the
percentage of oxygen to below safe levels. Because the brain
needs a continuous supply of oxygen to remain active, lack
of oxygen prevents the brain from functioning properly, and
it shuts down.
Being odorless, colorless, tasteless, and nonirritating,
nitrogen has no properties that can warn people of its pres-
ence. Inhalation of excessive amounts of nitrogen can cause
dizziness, nausea, vomiting, loss of consciousness, and death
Attachment 1: liqued_nitrogen_boil_off.jpg
liqued_nitrogen_boil_off.jpg
  13099   Fri Jul 7 09:03:40 2017 SteveSummaryHistoryas it was in 1994


 

Attachment 1: 1994.PDF
1994.PDF 1994.PDF
  13123   Mon Jul 17 16:22:01 2017 SteveUpdateSUSruby wire standoff pictures

Bluebean Optical Tech Limited of Shanghai delivered 50 pieces red ruby prisms with radius.  The first prism pictures were taken at June 5

and it was retaken again as BB#1 later

More samples were selected randomly as one from each bag of 5 and labeled as BB#2.......6    

 The R10 mm radius can be seen agains the  ruler edge.  The v-groove edge was labeled with blue marker and pictures were taken

from both side of this ridge. The top view is shown as the wire laying across on it.

SOS sus wire of 43 micron OD used as calibration as it was placed close to the side that it was focused on.

The V-groove ridge surface quality was evaluated based on as scale of 1 – 10 with 10 being the most positive.

 BB# Edge quality score
1 4
2 8
3 3
4 9.5
5 2
6 9

Remaining thing to examin, take picture of the contacting ridge to SOS from the side.

Attachment 1: contacting_ridge.bmp
Attachment 2: contacting_ridge.png
contacting_ridge.png
  13126   Wed Jul 19 12:47:43 2017 SteveSummarySUSoplev laser summary updated

1103P, sn P893518 of  2013 vintage is dead at the sus  fiber demo

Quote:

 

Quote:

                    Oct.  5, 2015              ETMY He/Ne replaced by 1103P, sr P919645,  made Dec 2014, after 2 years

                   Jan. 24, 2017              ETMY He/Ne replaced by 1103P,  sr P947049,  made Apr 2016,  after 477 hrs running hot

    Jan. 26,  2017              RIN test stared with P947034, made Apr. 2016  

    Apr.  10,  2017              purchased two 1103P from Edmund:  sr P964438 & sr P964431, made 02/2017

   

     July  19,  2017             1103P, sn P964438 as new installed at the south end for the glass fiber illumination. Turn laser off when you are done.

  13129   Fri Jul 21 08:05:07 2017 SteveSummarySUSred, blue, green laser diodes ordered

Also ordered 1 ea.

Blue 20mW

Green 10mW

IR 780nm 3mW

Quote:

The $1000 HeNe should not be used for illuminating fibers.

You should purchase these (total price per laser less than $6):

  1. 10 red laser diodes for $2.39 total
  2. 3-5 Vdc adapters

HeNe 1103P 2mW Recertified

  13134   Mon Jul 24 09:55:29 2017 SteveOmnistructureVACcontroller failer

Ifo pressure was 5.5 mTorr this Monday morning. The PSL shutter was still open. TP2 controller failed. Interlock closed V1, V4 and VM1

Turbo pump 2 is the fore pump of the Maglev. The pressure here was 3.9 Torr so The Maglev got warm ~38C but it was still rotating at 560 Hz normal with closed V1

Pressure plots are not available because of computer problems.

What I did:

Looked at pressures of Hornet and Super Bee  Instru Tech. Inc

Closed all annuloses and VA6,  disconnected V4 and VA6 and turned on external fan to cool Maglev

Opened V7 to pump the Maglev fore line with TP3

V1 opened manually when foreline pressure dropped to <2mTorr at P2 and the body temp of the Maglev cooled down to  25-27 C

VM1 opened at 1e-5 Torr

Valve configuration: vacuum normal with annuloses not pumped

Ifo pressure 8.5e-6 Torr -IT at 10am,  P2 foreline pressure 64 mTorr, TP3 controller 0.17A   22C  50Krpm

note: all valves open manually, interlock can only close them

 

Quote:

While walking down to the X end to reset c1iscex I heard what I would call a "rythmic squnching" sound coming from under the turbo pump.  I would have said the sound was coming from a roughing pump, but none of them are on (as far as I can tell).

Steve maybe look into this??

PS: please call me next time you see the vacuum is not Vacuum Normal

Attachment 1: TP2controllerFails.png
TP2controllerFails.png
  13142   Tue Jul 25 08:48:57 2017 SteveUpdateVACRGA scan at d278

The RGA did not shut down at the turbo pump controller failing.

Quote:

Ifo pressure was 5.5 mTorr this morning. The PSL shutter was still open. TP2 controller failed. Interlock closed V1, V4 and VM1

Turbo pump 2 is the fore pump of the Maglev. The pressure here was 3.9 Torr so The Magelv got warm ~38C but it was still rotating at 560 Hz normal with closed V1

What I did:

Looked at pressures of Hornet and Super Bee  Instru Tech. Inc

Closed all annuloses and VA6,  disconnected V4 and VA6 and turned on external fan to cool Maglev

Opened V7 to pump the Maglev fore line with TP3

V1 opened manually when foreline pressure dropped to <2mTorr at P2 and the body temp of the Maglev cooled down to  25-27 C

VM1 opened at 1e-5 Torr

Valve configuration: vacuum normal with annuloses not pumped

Ifo pressure 8.5e-6 Torr -IT at 10am,  P2 foreline pressure 64 mTorr, TP3 controller 0.17A   22C  50Krpm

note: all valves open manually, interlock can only close them

 

Quote:

While walking down to the X end to reset c1iscex I heard what I would call a "rythmic squnching" sound coming from under the turbo pump.  I would have said the sound was coming from a roughing pump, but none of them are on (as far as I can tell).

Steve maybe look into this??

PS: please call me next time you see the vacuum is not Vacuum Normal

 

Attachment 1: RGA278d.png
RGA278d.png
  13143   Tue Jul 25 14:04:06 2017 SteveUpdateVACturbo controller installed and we are running at vac normal

Gautam and Steve,

Spare Varian turbo-V 70 controller, Model 969-9505, sn 21612 was swapped in. It is running the turbo fine @ 50Krpm but it does not allow it's V4 valve to be opened............

It turns out that TP2 @ 75Krpm will allow V4 to open and close. This must be a software issue.

So Vacuum Normal is operational if TP2 is running 75,000 rpm

We want to run at 50,000 rpm on the long term.

Note: the RS232 Dsub connector on the back of this controller is mounted 180 degrees opposite than TP3  and old failed TP2 controller

 

PS: controller is shipping out for repair 7-28-2017

 

Attachment 1: TP2@75Krpm.png
TP2@75Krpm.png
  13144   Tue Jul 25 14:27:19 2017 SteveUpdatesafetysafety training

Kira Dubrovina and Naomi Wharton received 40m specific basic safety training.

Attachment 1: safety.jpg
safety.jpg
  13158   Wed Aug 2 09:40:55 2017 SteveUpdateElectronicsspare ILIGO electronics

Spare ILIGO electronics temporarly stored in the east arm. We need cabinet space.

Attachment 1: iLIGOspares.jpg
iLIGOspares.jpg
Attachment 2: spareIligo.jpg
spareIligo.jpg
  13171   Tue Aug 8 17:04:26 2017 SteveUpdateVACunintended pump down

IFO pressure 2 Torr,    PSL  shutter closed.  I'm pumping down with 2 roughing pumps with ion pump gate valves open and annulosses at atm.

The vacuum envelope was vented to 17 Torr while I was replacing the USP battery stack. More about this later.....

Do not plan on using the interferrometer tonight.  I will complete the pumpdown tomorrow morning.

 

Attachment 1: pumping_down.png
pumping_down.png
  13172   Tue Aug 8 17:44:11 2017 SteveUpdateVACunintended pump down

Pumpdown stopped for over night  at ~  1 Torr

The roughing line disconnected.  Valves condition indicator  "moving " means that it is closed and it's cable disconnected so it can not move.

The RGA is off and VM1 is stuck.

Quote:

IFO pressure 2 Torr,    PSL  shutter closed.  I'm pumping down with 2 roughing pumps with ion pump gate valves open and annulosses at atm.

The vacuum envelope was vented to 17 Torr while I was replacing the USP battery stack. More about this later.....

Do not plan on using the interferrometer tonight.  I will complete the pumpdown tomorrow morning.

 

 

Attachment 1: stopped_pumping.png
stopped_pumping.png
  13175   Wed Aug 9 11:59:51 2017 SteveUpdateVACunintended pump down at vacuum normal

pd80b has reached Vac Normal. IFO pressure 0.5 mTorr

We need our vauum channels back in dataviewer.

Quote:

Pumpdown stopped for over night  at ~  1 Torr

The roughing line disconnected.  Valves condition indicator  "moving " means that it is closed and it's cable disconnected so it can not move.

The RGA is off and VM1 is stuck.

Quote:

IFO pressure 2 Torr,    PSL  shutter closed.  I'm pumping down with 2 roughing pumps with ion pump gate valves open and annulosses at atm.

The vacuum envelope was vented to 17 Torr while I was replacing the USP battery stack. More about this later.....

Do not plan on using the interferrometer tonight.  I will complete the pumpdown tomorrow morning.

 

 

 

Attachment 1: pdc.png
pdc.png
Attachment 2: pd80b@vacnormal.png
pd80b@vacnormal.png
  13182   Thu Aug 10 09:31:57 2017 SteveUpdateSUSITMX sensor voltage

There must be some bad connection

Quote:

Somewhere between CDS model restarts and the IFO venting, ITMX got stuck.

I shook it loose using the usual bias slider technique. It appears to be free now, I was able to lock the green beam on a TEM00 mode without touching the green input pointing. The ITMX Oplev spot has also returned to within its MEDM display bounds.

 

Attachment 1: 9daysITMX.png
9daysITMX.png
Attachment 2: vacGlitchITMX.png
vacGlitchITMX.png
  13186   Thu Aug 10 15:45:34 2017 SteveUpdateVACaccidental vent to 17 Torr

Finally we got the cold cathode gauge working. IFO pressure 7e-6 Torr-it, vacuum normal valve configuration with all 4 ion pump gate valves closed at ~ 9e-6 Torr.  The cryo pump was also pumped yesterday to remove the accumulated outgassing build up.

The accidental vent was my mistake; made when I was replacing the battery pack of the UPS. The installed pack measured 51 V without any load. The "replace battery" warning light did not go out after the batteries were replaced. 

I then mistakenly and repeatedly pushed the "test" button to reset this, but I did not wait long enough for the batterries to get fully charged. The test put the full load on the new batteries and their charging condition got worse. I made the mistake when trying to put the load from the battery to online and pushed "O" so the power was cut and the computer rebooted to the all off condition. On top of this, I disconnected the wrong V1 cable to close V1.  As the computer rebooted it's interlock closed V1 at 17 Torr.

Never hit O on the Vacuum UPS !

Note: the " all off " configuration should be all valves closed ! This should be fixed now.

In case of  emergency  you can close V1 with disconnecting it's actuating power as shown on Atm3 if you have peumatic pressure 60 PSI 

Attachment 1: Mag_UPS.jpg
Mag_UPS.jpg
Attachment 2: UPSbatteryPack.jpg
UPSbatteryPack.jpg
Attachment 3: closing_V1.jpg
closing_V1.jpg
  13208   Tue Aug 15 08:22:16 2017 SteveUpdateGeneralprojector light bulb replaced

BL-FS300C-PH-LE was replaced after 2,904 hrs  It did not explode this time.  The 4 monts life period is actually pritty good because this is a $73.  cheap bulb. The best-high priced warranty is 5 months.

 

PS: future option_bulbless laser projector

HITACHI LP-WU3500 PROJECTOR	$2,549.00	
DLP, WUXGA, 3500 LUMENS, HDMI, 20K HR LASER, 5YR WARRANTY, 1.36-2.34:1 LENS, 24/7 DUTY CYCLE
45x72 IMAGE FROM 8' TO 13'10" LENS TO SCREEN, AND AT 10' APPROX. 154FL OF BRIGHTNESS ON A 1.0 GAIN SCREEN
http://www.projectorcentral.com/pdf/projector_spec_9722.pdf

This would give you everything you are requesting, plus a lamp-less design and 5yr warranty.  Ground shipping would be free anywhere in the lower 48, and we would not charge sales tax on orders billing/shipping outside of AZ.  If you have any questions or if you would like to order... just let me know!
  13213   Wed Aug 16 14:57:01 2017 SteveUpdatePSLref Cavity heating blanket power supply

The last entry I found relating to ref cavity was 2011 Aug 19

Attachment 1: refCavPSheat.jpg
refCavPSheat.jpg
Attachment 2: refCavTempSens.jpg
refCavTempSens.jpg
Attachment 3: refTempSen_1X1.jpg
refTempSen_1X1.jpg
  13223   Thu Aug 17 08:42:27 2017 SteveUpdatePSLPSL HEPA

The PSL HEPA was running noisy at 100V   The bearing is wearing out. I turned it down to 30V It is quiet there.

  13231   Mon Aug 21 09:08:54 2017 SteveUpdateSUStiny glitches

They are synchronised tiny glitches. They are not mechanical.
 

Attachment 1: glitches.png
glitches.png
  13245   Wed Aug 23 10:11:46 2017 SteveUpdateVACvacuum valve specifications

The V1 gate valve specs installed at 40m wiki page. VAT model number 10846-UE44-0007 Our main volume pumping goes through this 8" id gate valve V1 to Maglev turbo  or Cryo pump to  VC1

The ion pumps have 6" id gate valves:VAT 10844-UE44-AAY1,  Pneumatic actuator with position indicator and double acting solenoid valve 115V 60Hz  Purchased 1999 Dec 22

UHV gate valves 2.5" id. VAT  10836-UE44    Pneumatic actuator with position indicator and double acting solenoid valve 115V 60 hz, IFO to RGA  VM1 &  RGA to Maglev  VM2

mini UHV gate valve 1.5" id.   VAT  01032-UE01      2016 cataloge page 14,   manual - no position indicator, VM4  next to manual adjustable fine leak valve to RGA

UHV angle valve 1.5" id, model VAT 28432-GE41, Viton plate seal, pneumatic actuator with position indicator & solenoid valve 115V & single acting closing spring  MEDM screen: VM3,VC2, V3,V4,V5,V6,VA6,V7 & annuloses Each chamber annulos has 2 valves.

UHV angle valve 1.5" id, model VAT 57132-GE05   go page 208,   Metal tip seal, manual actuating only with position indicator,   MEDM screen: roughing RV1 and venting VV1 hand wheel needed to close to torque spec

UHV angle valve  1.5" id. model VAT 28432-GE01           Viton plate seal, manual operation only at IT gauges Hornet & Super Bee and  ion pumps roughing  ports. These are not labeled.

                                                      

The Cryo pump interlock wiring was added too

Note: all moving valve plate seals are single.

  13260   Mon Aug 28 10:28:07 2017 SteveUpdateVACRGA scan 20 day after 17 Torr

The RGA was turned on 7 days ago.  It's 46 C now.   The X-arm room tem ~20 C

IFO pressure 6.5e-6 Torr at IT-Hornet gauge. Valve configuration vacuum normal.

Attachment 1: 20d_after_17_torr.png
20d_after_17_torr.png
  13268   Tue Aug 29 15:35:19 2017 SteveUpdateVACvacuum pump specifications & manuals

RP1 and RP3 roughing pump manual of Leybold D30A oily rotory pump

Fore pump of TP2 & TP3 Varian SH-100 Dry Scroll

TP2 and TP3 small turbo drag pump  Varian 969-9361 

TP2 and TP3 turbo controller Varian 969-9505

TP1 magnetically suspended turbo pump  Osaka TG390MCAB, sn360 and controller TC010M  and note : this  pump  running on 208VAC single phaseIt is not on the UPS !  

                                                             Osaka Maglev Manual        and Osaka Controller Communication Wiring                                                                                                                                

VC1 cryo pump CTI-Cryogenics Cryo Torr 8 sn 8g23925  SAFETY note: compressor single phase 208VAC and the head driver 3 phase 208VAC Compressor and driver have each separate power cord!

Installed at 40m wiki  also

Quote:

The V1 gate valve specs installed at 40m wiki page. VAT model number 10846-UE44-0007 Our main volume pumping goes through this 8" id gate valve V1 to Maglev turbo  or Cryo pump to  VC1

The ion pumps have 6" id gate valves:VAT 10844-UE44-AAY1,  Pneumatic actuator with position indicator and double acting solenoid valve 115V 60Hz  Purchased 1999 Dec 22

UHV gate valves 2.5" id. VAT  10836-UE44    Pneumatic actuator with position indicator and double acting solenoid valve 115V 60 hz, IFO to RGA  VM1 &  RGA to Maglev  VM2

mini UHV gate valve 1.5" id.   VAT  01032-UE01      2016 cataloge page 14,   manual - no position indicator, VM4  next to manual adjustable fine leak valve to RGA

UHV angle valve 1.5" id, model VAT 28432-GE41, Viton plate seal, pneumatic actuator with position indicator & solenoid valve 115V & single acting closing spring  MEDM screen: VM3,VC2, V3,V4,V5,V6,VA6,V7 & annuloses Each chamber annulos has 2 valves.

UHV angle valve 1.5" id, model VAT 57132-GE05   go page 208,   Metal tip seal, manual actuating only with position indicator,   MEDM screen: roughing RV1 and venting VV1 hand wheel needed to close to torque spec

UHV angle valve  1.5" id. model VAT 28432-GE01           Viton plate seal, manual operation only at IT gauges Hornet & Super Bee and  ion pumps roughing  ports. These are not labeled.

                                                      

The Cryo pump interlock wiring was added too

Note: all moving valve plate seals are single.

 

  13284   Fri Sep 1 08:25:08 2017 SteveUpdateSUSMC1 glitching

MC1, MC2 and MC3 damping turned off to see glitching action at 9:57am

Quote:

There was a pretty large glitch in MC1 about an hour ago. The misalignment was so large that the autolocker wasn't able to lock the IMC. I manually re-aligned MC1 using the bias sliders, and now IMC locks fine. Attached is a 90 second plot of 2K data from the OSEMs showing the glitch. Judging from the wall StripTool, the IMC was well behaved for ~4 hours before this glitch - there is no evidence of any sort of misalignment building up, judging from the WFS control signals.

 

Attachment 1: MC1glitching.png
MC1glitching.png
Attachment 2: MC1kicks.png
MC1kicks.png
  13302   Fri Sep 8 07:54:04 2017 SteveUpdatePEMM8.1 eq

Nothing tripped. No obvious damage.

Attachment 1: M8.1.png
M8.1.png
  13303   Fri Sep 8 10:22:30 2017 SteveUpdatePEMtemp sensor update

The weight of SS can with copper liner  is 12.2 kg

Is 1 Amp for the heating jacket going to be enough? We should have some headroom.

Quote:

to get the sensors to read the same values they have to be in direct thermal contact with the metal block - there can't be any adapter board in-between

for the 2nd attempt, I also recommend encasing it in a metal block rather than just one side. You can drill some 7-10 mm diameter holes in an aluminum or copper block. Then put the sensors in there and plug it up with some thermal paste.

 

  13305   Mon Sep 11 09:47:53 2017 SteveUpdateGeneralWIMA caps refilled

Instock WIMA caps refilled to a minimum 50 pieces each.

Attachment 1: WIMA.png
WIMA.png
  13308   Mon Sep 11 15:58:02 2017 SteveUpdateGeneralNPRO for repair

This NPRO has a tripping power output******

 

" Hi Eric,

I checked with the Engineer as Vincent is travelling.

“The lasers have serial number below 2000 which we cannot repair them, we only can repair NPRO laser has serial number 2000 or later.”

Thanks,

Betty-Ann Watt

Customer Service Professional
Global Customer Service/Communication & Commercial Optical Products "

www.lumentum.com

 

 

Attachment 1: NPRO_tripping.jpg
NPRO_tripping.jpg
  13309   Mon Sep 11 16:46:09 2017 SteveUpdatePEMearthquakes
Quote:

I was trying to get a lossmap measurement over the weekend but had some trouble first with the IMC and then with the PMC.

For the IMC: It was a bit too misaligned to catch and maintain lock, but I had a hard time improving the alignment by hand. Fortunately, turning on the WFS quickly once it was locked restored the transmission to nominal levels and made it maintain the lock for longer, but only for several minutes, not enough for a lossmap scan (can take up to an hour). Using the WFS information I manually realigned the IMC, which made locking easier but wouldn't help with staying locked.

For the PMC: The PZT feedback signal had railed and the PMC had been unlocked for 8+ hours. The PMC medm screen controls were generally responsive (I could see the modes on the CCDs changing) but I just couldn't get it locked. c1psl was responding to ping but refusing telnet so I keyed the crate, followed by a burt restore and finally it worked.

After the PMC came back the IMC has already maintained lock for more than an hour, so I'm now running the first lossmap measurements.

Southern Mexio is still shaking..... so as we

Attachment 1: M5.4eq.png
M5.4eq.png
  13321   Tue Sep 19 11:05:26 2017 SteveUpdateVACRGA scan at day 334

 

 

Attachment 1: RGAscan334d.png
RGAscan334d.png
  13322   Tue Sep 19 14:00:41 2017 SteveUpdatePEMearthquakes

No sus tripped. Seimometers do not see the 5.3M  ?

Quote:

Southern Mexio is still shaking..... so as we

 

Attachment 1: 7.1MX5.3J.png
7.1MX5.3J.png
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