Differences between revisions 1 and 14 (spanning 13 versions)
⇤ ← Revision 1 as of 2018-07-18 16:50:22 →
Size: 1843
Editor: YoichiAso
Comment:
← Revision 14 as of 2018-07-27 13:23:24 → ⇥
Size: 5559
Editor: NaokoOhishi
Comment:
Deletions are marked like this. Additions are marked like this.
Line 3: Line 3:
2018/7/20 13:30 - 2018/7/20 13:30 - 15:00
Line 7: Line 7:
Participants: Participants: Mark, Takahashi, Aso, Panwei, Terrence, Fabian, Enzo, Hirata, Pan, Okutomi, Sato, Tanioka, Ishizaki, Fujii, Lucia, Eleonora, Tanaka, Shoda, Kozu
Line 17: Line 17:

[SRM]
  * Dismounted the top filter for SRM from the IP for Type-A. Packed the IP to the box.
  * Combined the top filter and the IP.

[Y-front]
  * Transported the IPs from/to the first floor.
  * Measured the transfer functions of the BF/F3/F2 by the digital system.
  * Cabled in the F1.
  * Assembled the cup of F1 (Cu plates, connector plates) and closed the cup.
  * Measured the weight of F1.

[X-front]
  * Evaluated the ACCs.
  * Fixed the cables between the cryo-payload (CP) and the BF at the lower points on the wire.
  * Connected the cables to the BF.
  * The CP was installed and suspended from the BF.
  * Adjusted the height of CP. The height of BF was set to 67.5mm.
Line 18: Line 37:
  * Setting of the F1 in Y-front.
  * Setting of the top filter in X-front.
Line 20: Line 41:
==== Past week report ====
==== Plan for coming weeks ====		 ==== Report for week of 7/17 ====
 * We checked the polarity of the IP LVDTs and flipped coil connections to get the standard arrangement.
 * We debugged an issue where one of the LVDT actuators had half the magnets in backwards resulting in no force.
 * We calibrated all the PI LVDTs.
 * We set the SF damper ring gap.
 * We prepped the suspension for craning, moved it into the tank and hooked the LBB damper ring rods.
 * Type A merged the SRM F0 with the correct IP, and we moved it out of the way (to the second floor behind the SRM tank).
 * We installed more cable clamps on the SR2 PI.
Line 23: Line 50:
==== Plan for week of 7/23 ====
 * Mark, Enzo, Fabian, Kozu-kun, Terrence, Panwei at Kamioka Mon-Fri.
 * Hirata-san at Kamioka Mon-Thu.
 * Mirapro moves assembly frame ≈7/25 (Wed).

===== SR3 =====
 * Unlock suspension.
 * Rearrange cables.
 * Test.
===== SR2 =====
 * Finish PI prep.
 * Crane into AF, suspend.
 * Start cable routing.
===== SRM =====
 * Prepare to assemble SRM metal mass (most parts due Wed 7/25).
 * Help Mirapro with AF move.
 * Start rebuild of top filter of PI #2.

==== To-Do Lists, Schedule ====
 * [[KAGRA/Subgroups/VIS/TypeB/ToDoBS]]
 * [[KAGRA/Subgroups/VIS/TypeB/ToDoSR]]
 * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779 Type B Schedule (SR)]]

==== Vacation Info ====
 * Hirata-san at Mitaka 7/27.
 * Terrence: 8/24-26 f2f, then returns to Hong Kong.
 * Enzo: 9/14 JPS, 9/15 through 10/8 vacation in Chile.
Line 29: Line 83:
 * IMMT2 screw replacement finished (July 9th-20th).
 * Measure TF in the week after next.
 * Got a quotation of OMMT/OSTM.
Line 30: Line 87:
 * Order OMMT/OSTM mechanical parts.
Line 41: Line 98:
 * Incidents:  * Incidents: no incident
Line 44: Line 101:
  * Type-A:
  * Type-B:		   * Type-A: Crane work
  * Type-B: Crane work, holes in the 2F
Line 49: Line 106:
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=5539|klog]]
  * F2 is stuck
  * We will leave it stuck for O3
 * Geophones or Accelerometers ?
  * We will use Geophones for ITMs too.
  * We need to buy 6 more geophones. However the lead time can be long
Line 50: Line 113:
  * To be confirmed in the next week
Line 51: Line 115:
  * Immediately necessary: 2.4m cables for OSEMs (x2), 5 Type-1 cables
   * Sato-san will order them soon
  * We need to make more Type-1 cables by the end of September
  * We need more cable material for this
  * Takahashi-san is waiting for a quote for PTFE cable material
Line 52: Line 121:
  * We will request 2 slots
Line 53: Line 123:
 * Survey to point out different aspects that should be covered in a introductory lecture for KAGRA. [[https://docs.google.com/document/d/1jf9jNfU-ZDP0fjNZVo6yp0S7q91V8aa7qck7Mme0hrU/edit?usp=sharing|survey]]
Line 56: Line 127:
  * Takahashi:   * Takahashi: 23 - 27
Line 58: Line 129:
  * Sato:
  * Lucia:		   * Sato: 23 - 27
  * Lucia: 23 - 27
Line 61: Line 132:
  * Mark:
  * Hirata:
  * Enzo:
  * Panwei
  * Terrence: 		  * Mark: 23 - 27
  * Hirata: 23 - 26
  * Enzo: 23 - 27
  * Panwei: 23 - 27
  * Terrence: 23 - 27
Line 68: Line 139:
  * Fujii:
  * Tanioka:		   * Fujii: 24 - 27
  * Tanioka: 
Line 71: Line 142:
  * Kozu (ICRR):   * Kozu (ICRR): 23 - 26
Line 73: Line 144:
  * Eleonora: 23 - 26
  * Hashimoto: 23 - 27
Line 75: Line 148:
  * Takahashi:   * Takahashi:  
Line 77: Line 150:
  * Sato:
  * Lucia:		   * Sato: 7/30 - 8/3
  * Lucia: 7/30 - 8/3
Line 80: Line 153:
  * Mark:
  * Hirata:
  * Enzo:
  * Terrence:
  * Panwei		   * Mark: 7/30 - 8/3
  * Hirata: 7/30 - 8/3
  * Enzo: 7/30 - 8/3
  * Terrence: 7/30 - 8/3
  * Panwei 7/30 - 8/3
Line 87: Line 160:
  * Fujii:
  * Tanioka:		   * Fujii: 7/30 - 8/3
  * Tanioka: 7/30 - 8/3
Line 90: Line 163:
  * Kozu (ICRR):   * Kozu (ICRR): 7/30 - 8/3
Line 92: Line 165:
  * Hatoya: 8/2 - 8/3

== Next meeting ==
On 2018/7/27(Fri)

Agenda/Minutes of the VIS Meeting on 2018/7/20

2018/7/20 13:30 - 15:00

Zoom Meeting

Participants: Mark, Takahashi, Aso, Panwei, Terrence, Fabian, Enzo, Hirata, Pan, Okutomi, Sato, Tanioka, Ishizaki, Fujii, Lucia, Eleonora, Tanaka, Shoda, Kozu

Progress report

Schedule Chart

Type-A : (PDF/MPP)

Type-B: (PDF/MPP)

Type-A (Takahashi)

Past week report

[SRM]

  • Dismounted the top filter for SRM from the IP for Type-A. Packed the IP to the box.
  • Combined the top filter and the IP.

[Y-front]

  • Transported the IPs from/to the first floor.
  • Measured the transfer functions of the BF/F3/F2 by the digital system.
  • Cabled in the F1.
  • Assembled the cup of F1 (Cu plates, connector plates) and closed the cup.
  • Measured the weight of F1.

[X-front]

  • Evaluated the ACCs.
  • Fixed the cables between the cryo-payload (CP) and the BF at the lower points on the wire.
  • Connected the cables to the BF.
  • The CP was installed and suspended from the BF.
  • Adjusted the height of CP. The height of BF was set to 67.5mm.

Plan for coming weeks

  • Setting of the F1 in Y-front.
  • Setting of the top filter in X-front.

Type B (Mark)

Report for week of 7/17

  • We checked the polarity of the IP LVDTs and flipped coil connections to get the standard arrangement.
  • We debugged an issue where one of the LVDT actuators had half the magnets in backwards resulting in no force.
  • We calibrated all the PI LVDTs.
  • We set the SF damper ring gap.
  • We prepped the suspension for craning, moved it into the tank and hooked the LBB damper ring rods.
  • Type A merged the SRM F0 with the correct IP, and we moved it out of the way (to the second floor behind the SRM tank).
  • We installed more cable clamps on the SR2 PI.

Plan for week of 7/23

  • Mark, Enzo, Fabian, Kozu-kun, Terrence, Panwei at Kamioka Mon-Fri.
  • Hirata-san at Kamioka Mon-Thu.
  • Mirapro moves assembly frame ≈7/25 (Wed).

SR3
  • Unlock suspension.
  • Rearrange cables.
  • Test.

SR2
  • Finish PI prep.
  • Crane into AF, suspend.
  • Start cable routing.

SRM
  • Prepare to assemble SRM metal mass (most parts due Wed 7/25).
  • Help Mirapro with AF move.
  • Start rebuild of top filter of PI #2.

To-Do Lists, Schedule

Vacation Info

  • Hirata-san at Mitaka 7/27.
  • Terrence: 8/24-26 f2f, then returns to Hong Kong.
  • Enzo: 9/14 JPS, 9/15 through 10/8 vacation in Chile.

Type-Bp (Shoda)

Past week report

Plan for coming weeks

OMMT & OSTM (Ohishi)

Past week report

  • IMMT2 screw replacement finished (July 9th-20th).
  • Measure TF in the week after next.
  • Got a quotation of OMMT/OSTM.

Plan for coming weeks

  • Order OMMT/OSTM mechanical parts.

VIS electronics (Tanaka)

Past week report

Plan for coming weeks

Other site works

  • July 26 11:30 - 12:30: Monthly crane inspection
  • Sept 10(Mon): Planned power outage

Safety

  • Incidents: no incident
  • Foreseen risks
    • Type-A: Crane work
    • Type-B: Crane work, holes in the 2F

Discussion

  • ETMX F2 status

    • klog

    • F2 is stuck
    • We will leave it stuck for O3
  • Geophones or Accelerometers ?
    • We will use Geophones for ITMs too.
    • We need to buy 6 more geophones. However the lead time can be long
  • SR2 TF optimal load problem
    • To be confirmed in the next week
  • SR cable procurement
    • Immediately necessary: 2.4m cables for OSEMs (x2), 5 Type-1 cables
      • Sato-san will order them soon
    • We need to make more Type-1 cables by the end of September
    • We need more cable material for this
    • Takahashi-san is waiting for a quote for PTFE cable material
  • VIS talk at the F2F in Toyama U
    • We will request 2 slots

  • VIS introduction page

  • Survey to point out different aspects that should be covered in a introductory lecture for KAGRA. survey

Travel Plans

  • Travel (Week of 7/23):
    • Takahashi: 23 - 27
    • Okutomi:
    • Sato: 23 - 27
    • Lucia: 23 - 27
    • Ishizaki:
    • Mark: 23 - 27
    • Hirata: 23 - 26
    • Enzo: 23 - 27
    • Panwei: 23 - 27
    • Terrence: 23 - 27
    • Shoda:
    • Ohishi:
    • Fujii: 24 - 27
    • Tanioka:
    • Tanaka:
    • Kozu (ICRR): 23 - 26
    • Arai (ICRR):
    • Eleonora: 23 - 26
    • Hashimoto: 23 - 27
  • Travel (Week of 7/30):
    • Takahashi:
    • Okutomi:
    • Sato: 7/30 - 8/3
    • Lucia: 7/30 - 8/3
    • Ishizaki:
    • Mark: 7/30 - 8/3
    • Hirata: 7/30 - 8/3
    • Enzo: 7/30 - 8/3
    • Terrence: 7/30 - 8/3
    • Panwei 7/30 - 8/3
    • Shoda:
    • Ohishi:
    • Fujii: 7/30 - 8/3
    • Tanioka: 7/30 - 8/3
    • Tanaka:
    • Kozu (ICRR): 7/30 - 8/3
    • Arai (ICRR):
    • Hatoya: 8/2 - 8/3

Next meeting

On 2018/7/27(Fri)

KAGRA/Subgroups/VIS/VISMinutes20180720 (last edited 2018-07-27 13:23:24 by NaokoOhishi)