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2015/12/4 13:30 -

Room 210 + SeeVogh(?)

Participants: 		2015/12/4 13:30 - 17:30

Room 210 + SeeVogh

Participants: Takahashi, Akutsu, Raffaele, Ishizaki, Tanaka, Mark, Shoda, Okutomi, Fujii, Fabian, Joris, Agatsuma, Hirata, Ohishi, Aso
Line 16: Line 16:
   * Akutsu-kun checked one LVDT driver in the office. It seems to work fine.
   * Will bring this one into the tunnel for the hanging test
Line 17: Line 19:
   * Both In-vac and out-vac cables are ready
   * Will test the connection on Monday
Line 18: Line 22:
   * In-vac cable assembly failed at the site. No spare D-SUB9 at the site.
   * Will use a non-vacuum compatible D-SUB for the hanging test.
   * Oredered a tool for removing failed pins from D-SUB
  * Digital system is not working most of the time
   * We should prepare analog alternative for signal checking
Line 20: Line 29:

 * A cable clamp to be attached to the suspension rod has a wrong size collet. Fabian will bring the proper collets from Mitaka. -> status ?		   * Cleaned up the area
  * Set up a temporary clean booth
  * Put the steel sheets under the assembly frame
  * Hanging frame is now set inside the assembly frame
  * Hanging frame is mostly completed

 * Location of the EQ stop pillars
  * There are 4 holes to hold the EQ stop pillars around the TM, but we use only 3 of them to avoid interference with the main beams.
  * Takahashi will give Hirata the desired positions of the pillars
  * Hirata will update the 3D model accordingly and give it to Akutsu
  * Akutsu will check for the compatibility with the OpLev

 * A cable clamp to be attached to the suspension rod has a wrong size collet.
  * It is already at the site. To be washed.
Line 25: Line 46:

 * Digital system (Okutomi, Fujii)		     * BF#1 Previous measurement 53.1kg without fishing rod. -> 52.9kg w/o fishing rod, 53.3kg with fishing rod
    * The theory that we mistook BF#1 for #2 was wrong.
    * Check the optimal load for the ETM BFs at the ATC: Need to be done before the end of Jan. Arrange with ATC people (Takahashi)
    * Need to prepare additional balast masses with better design-> Fabian will design ones on Monday (12/7) Takahashi and Hirata will make 2D drawings (adding surface treatment information and so on) and order to a company
Line 31: Line 54:
  * Procurement status (Takahashi)   * Uraguchi-san's plan seems fine
  * Procurement status (Takahashi): Told Uraguchi-san about our decision. Will order the parts soon.
Line 34: Line 58:
  * Particle count record (Shoda)
  * Where to put the floor coach filters for PR2 and PR3 work
   * Particle count record (Shoda): Got the calibration factor from Hasegawa-kun. 10^4 cnts/m^3 for below 0.3um. -> ISO class 5.
  * Where to put the floor coach filters for PR2 and PR3 work -> Consult with Hirose-san
  * Okutomi had a discussion with the cleaning company.
http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4659
  * KAGRA should have a special meeting for clean requirements (Aso will propose to Saito-san)
  
Line 41: Line 68:
  * Made a cable list -> Put a link to the excel file on Wiki. Takahashi will improve the table. -> Status   * 12/1: 4th delivery. One more is remaining.
 * Made a cable list -> Put a link to the excel file on Wiki. Takahashi will improve the table.
Line 44: Line 72:
  * Liu-kun will come from 12/7
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  * Made a call for shift for helping the installation works
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  * Discussion with Hirose-san (Aso)
  * Transportation schedule
   * Bring PR3 also ?
   * Bring the original containers of PR3 and the spare mirror ?		   * Had a discussion with Hirose-san (Aso)
   * Hirose-san will apply FC on PR2 on 12/4
   * He would like to check the removal of FC on 12/9 from the test hanging suspension. If there is any problem with it, he will redo the FC application on PR2 and PR3 before transportation.
  * Schedule
   * 12/4: FC application (Hirose)
   * 12/7: Flag gluing (Tatsumi)
   * 12/10: Packing and transportation (Tatsumi, Manuel, Ishizaki)
  * What to transport
   * PR2, PR3, original containers of the spare mirror and PR3
  
 * Wire cleaning
  * We need to clean the suspension wires before the real suspension hanging.
  * Buy new wires and do acetone wipe at Mitaka
  * Hirata will do the actual wiping (Thu or Fri)
  * Mark will send the LIGO procedure to kagra-seis by Mon.
  * Fabian will compile the number of wires necessary by Mon.
  * Takahashi will buy the wires (by Tue)
  
 * Cleaning of the existing winches
  * They get dirty by contacting the oilly wires
  * The wires to be installed into the vacuum will not contact the drum part
  * Wiping the drum will be sufficient
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  * Most of the parts were delivered.
  * ATC engineers is test assembling the winches (mostly complete)
Line 56: Line 106:
  * Design status (Fabian): Will finish it after the ELITES meeting by the end of the next week.
  * Order status (Takahashi): Placed an order. Will check the delivery date.		   * Design status (Fabian): Do it later.
  * Order status (Takahashi): Placed an order. Will check the delivery date -> confirm (Takahashi)
  * Need to buy screws for fixing the compensation masses. Takahashi will check the lengths of screws
  * For the RM assembly in the test hanging, SUS screws were fine (no gulling). So we will use SUS screws.
Line 60: Line 112:
  * Out sourcing: Need to send the plates to the company -> Status   * Out sourcing: Need to send the plates to the company -> Sent 6 sets on Tue. One set remaining at the site.
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  * When to install

 * PR2/3 OpLev (Akutsu)		   * For PR3 OpLev, we don't need to have an in-vac reflector. So we don't have to raise the optical bench.
  * For PR2, we do need to raise the optical bench.
   * Delivery date for the screws: Dec. 21
   * PR2 vacuum installation will be Jan. 19
Line 68: Line 121:
  * 22 OSEMs were assembled
  * 10 OSEMs per suspension, so should be enough for PR2 and PR3
  * One risk is that they use old flexible circuits.
Line 70: Line 126:
  * Hirata will finish exchanging the balls and send them to Kamioka by the end of the next week -> status
  * Screws for fixing the rails ?		   * The ball exchange of the rails were finished. Already installed into the PR2 hanging frame.
Line 74: Line 129:
  * Do we have everything necessary ?
  * Cleaness check by Hirose-san		   * Do we have everything necessary
   * Takahashi willl make a procedure by Mon
  * Cleaness check by Hirose
   * Hirose will come on Wed.
Line 78: Line 135:
    * Do we need OpLev ?
   * Check the orientation of the mirror ?
   * Peel off the first contact
   * Suspension cleaning practice ?		    * Spectrum
   * Do we need OpLev -> Yes
   * Check the orientation of the mirror
    * Using the laser marker
    * Use OpLev for pitch ?
    * Mark will test the laser lever at Kamioka
    * Can we use the arm ducts as tilt reference ? (Ask Saito-san)
   * Check the height with laser marker
   * Peel off the first contact first
   * Practice of the suspension cleaning using the air gun
   * Inner frame modal analysis with the suspension (Takahashi)
Line 85: Line 149:
   * Mon:
   * Tue:
   * Wed:
   * Thu:
   * Fri: 		   * Mon: Preparation of installation into the chamber, LVDT test, Fishing rod test, Picomotor test, cable check instruction
   * Tue: Continue the preparation work. Final check of the payload (balance of IM and so on)
   * Wed: Install the suspension into the chamber
   * Thu: Peel off the first contact. Hammering test. Cleaning practice.
   * Fri: Release the EQ stops. Check the free hanging. Check the orientation.
Line 92: Line 156:
   * Mon:
   * Tue:
   * Wed:
   * Thu:
   * Fri: 		   * Mon: Assemble hanging frame
   * Tue: Find screws and other parts
   * Wed: Find screws and other parts
   * Thu: Put IM on the frame
   * Fri: Receive PR2 mirror. Move the winches from PR3 to PR2
Line 99: Line 163:
  * Takahashi:
  * Shoda:
  * Mark:
  * Fabian:
  * Okutomi:
  * Fujii:
  * Ishizaki:		   * Takahashi: Mon-Fri
  * Shoda: Mon-Fri
  * Mark: Mon-Fri
  * Fabian: Tue(PM) - Fri
  * Okutomi: Mon-Fri
  * Fujii: Mon-Fri
  * Ishizaki: Thu-Fri
Line 110: Line 174:
  * Takahashi:
  * Shoda:
  * Mark:
  * Fabian:
  * Okutomi: 		  * Takahashi: Mon-Thu
  * Shoda: Mon-Fri
  * Mark: Tue-Thu(AM)
  * Fabian: Mon-Fri
  * Okutomi: Tue-Fri
Line 116: Line 180:
  * Ishizaki:
  * Hirata:		   * Ishizaki: Tue-Fri
  * Hirata: 
Line 119: Line 183:

* Agatsuma: 12/7 - 12/10
* Joris: 12/7 - 12/18
Line 148: Line 215:
  * Need to confirm the maximum output voltage from the coil drivers. Is it less than 14V ?
  * How many channels are necessary ? -> roughly 100ch
  * RMS threshold level to be used for the development -> 150mA RMS over 2sec
  * Damping resistance -> 0 Ohm.
Line 156: Line 227:
  * There was a near miss. Please read the report by Ohishi and Ishizaki

VIS Meeting on 2015/12/4

2015/12/4 13:30 - 17:30

Room 210 + SeeVogh

Participants: Takahashi, Akutsu, Raffaele, Ishizaki, Tanaka, Mark, Shoda, Okutomi, Fujii, Fabian, Joris, Agatsuma, Hirata, Ohishi, Aso

Schedule

  • Schedule status (Aso)
    • Latest schedule chart

PR

  • Test Hanging Status (Takahashi)
    • LVDT driver
      • Akutsu-kun checked one LVDT driver in the office. It seems to work fine.
      • Will bring this one into the tunnel for the hanging test
    • Picomotor connection
      • Both In-vac and out-vac cables are ready
      • Will test the connection on Monday
    • Fishing rod motor
      • In-vac cable assembly failed at the site. No spare D-SUB9 at the site.
      • Will use a non-vacuum compatible D-SUB for the hanging test.
      • Oredered a tool for removing failed pins from D-SUB
    • Digital system is not working most of the time
      • We should prepare analog alternative for signal checking
  • PR2 preparation (Mark, Fabian)
    • Cleaned up the area
    • Set up a temporary clean booth
    • Put the steel sheets under the assembly frame
    • Hanging frame is now set inside the assembly frame
    • Hanging frame is mostly completed
  • Location of the EQ stop pillars
    • There are 4 holes to hold the EQ stop pillars around the TM, but we use only 3 of them to avoid interference with the main beams.
    • Takahashi will give Hirata the desired positions of the pillars
    • Hirata will update the 3D model accordingly and give it to Akutsu

    • Akutsu will check for the compatibility with the OpLev

  • A cable clamp to be attached to the suspension rod has a wrong size collet.
    • It is already at the site. To be washed.
  • Payload weight issue
    • BF load check at the ATC

      • BF#1 Previous measurement 53.1kg without fishing rod. -> 52.9kg w/o fishing rod, 53.3kg with fishing rod

      • The theory that we mistook BF#1 for #2 was wrong.
      • Check the optimal load for the ETM BFs at the ATC: Need to be done before the end of Jan. Arrange with ATC people (Takahashi)

      • Need to prepare additional balast masses with better design-> Fabian will design ones on Monday (12/7) Takahashi and Hirata will make 2D drawings (adding surface treatment information and so on) and order to a company

  • Traverser actuation check (Shoda)
  • Traverser stop mechanism (Shoda)
    • Uraguchi-san's plan seems fine
    • Procurement status (Takahashi): Told Uraguchi-san about our decision. Will order the parts soon.
  • Clean work procedure

    • Particle count record (Shoda): Got the calibration factor from Hasegawa-kun. 104 cnts/m3 for below 0.3um. -> ISO class 5.

    • Where to put the floor coach filters for PR2 and PR3 work -> Consult with Hirose-san

    • Okutomi had a discussion with the cleaning company.

http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4659

  • KAGRA should have a special meeting for clean requirements (Aso will propose to Saito-san)
  • PR CAD model and assembly drawings (Hirata)
    • Need to give the rotation angle of the traverser top plate (Aso)
  • Cable status (Takahashi)
    • 12/1: 4th delivery. One more is remaining.

    • Made a cable list -> Put a link to the excel file on Wiki. Takahashi will improve the table.

  • Call for shift for cable checking (Takahashi)
    • Liu-kun will come from 12/7
  • Call for shift for assembly help (Takahashi)
    • Made a call for shift for helping the installation works
  • PR2 gluing schedule (Tatsumi)
    • Had a discussion with Hirose-san (Aso)
      • Hirose-san will apply FC on PR2 on 12/4
      • He would like to check the removal of FC on 12/9 from the test hanging suspension. If there is any problem with it, he will redo the FC application on PR2 and PR3 before transportation.
    • Schedule
      • 12/4: FC application (Hirose)
      • 12/7: Flag gluing (Tatsumi)
      • 12/10: Packing and transportation (Tatsumi, Manuel, Ishizaki)
    • What to transport
      • PR2, PR3, original containers of the spare mirror and PR3
  • Wire cleaning
    • We need to clean the suspension wires before the real suspension hanging.
    • Buy new wires and do acetone wipe at Mitaka
    • Hirata will do the actual wiping (Thu or Fri)
    • Mark will send the LIGO procedure to kagra-seis by Mon.
    • Fabian will compile the number of wires necessary by Mon.
    • Takahashi will buy the wires (by Tue)
  • Cleaning of the existing winches
    • They get dirty by contacting the oilly wires
    • The wires to be installed into the vacuum will not contact the drum part
    • Wiping the drum will be sufficient
  • Production of additional PR winches (Akutsu)
    • Most of the parts were delivered.
    • ATC engineers is test assembling the winches (mostly complete)
  • RM compensation mass
    • Design status (Fabian): Do it later.

    • Order status (Takahashi): Placed an order. Will check the delivery date -> confirm (Takahashi)

    • Need to buy screws for fixing the compensation masses. Takahashi will check the lengths of screws
    • For the RM assembly in the test hanging, SUS screws were fine (no gulling). So we will use SUS screws.
  • RM EQ stop screw position (Takahashi)

    • Out sourcing: Need to send the plates to the company -> Sent 6 sets on Tue. One set remaining at the site.

  • PR Optical Bench (Akutsu)

    • For PR3 OpLev, we don't need to have an in-vac reflector. So we don't have to raise the optical bench.

    • For PR2, we do need to raise the optical bench.
      • Delivery date for the screws: Dec. 21
      • PR2 vacuum installation will be Jan. 19
  • OSEM assembly status (Akutsu)
    • 22 OSEMs were assembled
    • 10 OSEMs per suspension, so should be enough for PR2 and PR3
    • One risk is that they use old flexible circuits.
  • Rails for the hanging frame (Hirata)
    • The ball exchange of the rails were finished. Already installed into the PR2 hanging frame.
  • Test hanging vacuum installation
    • Do we have everything necessary
      • Takahashi willl make a procedure by Mon
    • Cleaness check by Hirose
      • Hirose will come on Wed.
    • What needs to be done when the suspension is inside the chamber ?
      • Transfer function measurement
      • Spectrum

      • Do we need OpLev -> Yes

      • Check the orientation of the mirror
        • Using the laser marker

        • Use OpLev for pitch ?

        • Mark will test the laser lever at Kamioka
        • Can we use the arm ducts as tilt reference ? (Ask Saito-san)
      • Check the height with laser marker
      • Peel off the first contact first
      • Practice of the suspension cleaning using the air gun
      • Inner frame modal analysis with the suspension (Takahashi)
  • Next week (from 12/7) plan
    • Test hanging
      • Mon: Preparation of installation into the chamber, LVDT test, Fishing rod test, Picomotor test, cable check instruction
      • Tue: Continue the preparation work. Final check of the payload (balance of IM and so on)
      • Wed: Install the suspension into the chamber
      • Thu: Peel off the first contact. Hammering test. Cleaning practice.
      • Fri: Release the EQ stops. Check the free hanging. Check the orientation.
    • PR2
      • Mon: Assemble hanging frame
      • Tue: Find screws and other parts
      • Wed: Find screws and other parts
      • Thu: Put IM on the frame
      • Fri: Receive PR2 mirror. Move the winches from PR3 to PR2
  • Travel (Week of 12/7)
    • Takahashi: Mon-Fri
    • Shoda: Mon-Fri
    • Mark: Mon-Fri
    • Fabian: Tue(PM) - Fri
    • Okutomi: Mon-Fri
    • Fujii: Mon-Fri
    • Ishizaki: Thu-Fri
    • Hirata:
    • Ohishi:
  • Travel (Week of 12/14)
    • Takahashi: Mon-Thu
    • Shoda: Mon-Fri
    • Mark: Tue-Thu(AM)
    • Fabian: Mon-Fri
    • Okutomi: Tue-Fri
    • Fujii:
    • Ishizaki: Tue-Fri
    • Hirata:
    • Ohishi:

* Agatsuma: 12/7 - 12/10 * Joris: 12/7 - 12/18

BS

  • What to do with BS after iKAGRA (Aso)
    • We need to decide on the plan by the end of Dec.
  • BS Assembly Frame Design (Aso, Hirata)
  • BS flag design (Mark, Fabian)
  • BS gluing jigs (Tatsumi)
  • Not enough crane height problem (Hirata, Saito)
  • IP base clamp (Fabian)
  • Bread board spring (Takahashi)
  • BS clean bag (Aso)

ETM

  • ETM installation procedure (Aso)
    • Sent the final version drawings to Mirapro
    • Waiting for quotation

Other

  • Watch dog system (Tanaka)
    • Need to confirm the maximum output voltage from the coil drivers. Is it less than 14V ?

    • How many channels are necessary ? -> roughly 100ch

    • RMS threshold level to be used for the development -> 150mA RMS over 2sec

    • Damping resistance -> 0 Ohm.

  • GAS blade inspection by Virgo (Takahashi)
    • Waiting for shipping information:
  • Request to the ATC for the next year

    • Production of the blades of the Type-A BF: We should check the consistency of the optimal load at the TAMA prototype experiment and G&M measurements (SF and TF) (Takahashi) -> Status

  • Safety at the site (Takahashi, Ishizaki)
    • There was a near miss. Please read the report by Ohishi and Ishizaki

Next meeting

2015/12/11 (Fri) 13:30 -

KAGRA/Subgroups/VIS/VISMinutes20151204 (last edited 2015-12-06 08:31:40 by YoichiAso)