Differences between revisions 246 and 280 (spanning 34 versions)
Revision 246 as of 2018-03-09 13:42:04
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Editor: MarkBarton
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Revision 280 as of 2018-04-20 14:02:19
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Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
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==== Report for week of 3/5 ====
 * Mark finished -v2 of the schedule ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779| L1807779]]).
 * We removed the non-vacuum-compatible ballast mass from the BS tank.
 * We secured all the PR2 feedthrough connections with screws.
 * We grabbed an extra empty rack for SRM and set it up next to the one for SR3 (we will add boxes next week).
 * We calibrated the SR2 SF LVDT sensing and actuation, and the FR.
 * We measured the bounce frequencies of the SF with and without the cap, and the bounce frequency of the BF.
 * We put the SF cap on and lifted and weighed the SF/... section.
 * However we were unhappy with how the cap had to be forced on and off and how it lowered the load capacity (≈-433 g) and resonance frequency (0.271 Hz-> 0.23 Hz).
 * We tried the cap left over from B2-3 used in one of the PRs, which was slightly better but still not great.
 * We measured diameter of the original cap (B2-2) and the new one (B2-3). The original cap was almost exactly 700 mm in internal diameter, and the new one was about 0.2 mm wider.
 * We moved the filter building bench and tools into the SRM area and started the rebuild of the two remaining BFs (the one from the BS Test Hang and the one with the tilted keystone).
 * Mark worked on slides for the ASJ and LVC meetings.
 * The SRM mushroom work was postponed due to other demands on the time of Sawada-san-tachi and Mirapro.
==== Report for week of 4/9 ====
 * We packed away the SRM SF and BF.
 * After several failed attempts with one secondary prism, Mark finished the SR3 prism/magnet gluing.
 * Tanioka-kun built two IRMs (less OSEMs).
 * Enzo built an RM.
 * Kozu-kun and Enzo calibrated one set of 6 IM OSEMs for SR3. (6 OSEMs for SRM remain to be done.)
 * Hirata-san aligned the assembly frame, installed the interface bars and IM ring, and installed the IM.
 * Eleonora and Izumi-san revisited the BS length to tilt coupling, which had degraded, and got it working again.
Line 21: Line 15:
==== Plan for week of 3/12 ==== ==== Plan for week of 4/23 ====
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 * Mark at ASJ (Chiba) Fri, then Mitaka.
 * Others Kamioka Mon-Thu
 * F2F VIS Meeting and Farewell Party for Fabian at Mitaka on Friday.
 * Hirata-san at Kamioka Mon-Wed, then Mitaka.
 * Kozu-kun at Kamioka Wed-Fri (but may be working with PEM on Fri).
 * Others (Mark, Enzo, Tanioka-kun) at Kamioka full week
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 * Install boxes in SR3 and SRM racks.
 * Lay SR3 in-air cabling.
 * Continue rebuild of BFs.
 * Ship dummy BS to Mitaka.
 * Continue SR3 Hang
  * Hang optic.
  * Hang RM.
  * Cable RM OSEMs.
Line 32: Line 26:
==== Plan for week of 3/19 ====
 * Fujii-kun and Tanioka-kun join.
 * Mark at LVC meeting
 * Fujii-kun
at Kamioka
 * All others at Mitaka
==== Plan for week of 4/30 ====
 * Shoda-san at Mitaka.
 * Mark, Enzo at Kamioka Mon-Wed or TBD.
 * Others having fun doing Golden Week stuff.
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 * Put four geophones in pods.
 * Make two sets of IM OSEMs
 * Make last in-air pico adapter cable
 * Make three in-air stepper splitter cables for SR2, SR3 and SRM.
 * Set up Dummy BS prism removal.


==== Plan for week of 3/26 ====
 * Mark vacation.
 * Shoda-san at Mitaka
 * Others at Kamioka
 * --
 * SF Check
  * Check load capacity.
  * Check fit of caps.
  * Add cable clamps to bases.
  * Add cable clamps and Cu segments to caps (only if they fit well).
  * Cable LVDTs and steppers.
 * Observe KAGRA Phase 1 operations, assist if problems arise.
 * Do BF TFs.
 * Continue SR3 hang.
Line 65: Line 43:
 * Mark at LVC, then vacation, 3/18 (Sun) - 4/1 (Sun)
 * Hirata-san vacation, Mon 3/5.

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for week of 4/9

  • We packed away the SRM SF and BF.
  • After several failed attempts with one secondary prism, Mark finished the SR3 prism/magnet gluing.
  • Tanioka-kun built two IRMs (less OSEMs).
  • Enzo built an RM.
  • Kozu-kun and Enzo calibrated one set of 6 IM OSEMs for SR3. (6 OSEMs for SRM remain to be done.)
  • Hirata-san aligned the assembly frame, installed the interface bars and IM ring, and installed the IM.
  • Eleonora and Izumi-san revisited the BS length to tilt coupling, which had degraded, and got it working again.

Plan for week of 4/23

  • Shoda-san at Mitaka.
  • Hirata-san at Kamioka Mon-Wed, then Mitaka.
  • Kozu-kun at Kamioka Wed-Fri (but may be working with PEM on Fri).
  • Others (Mark, Enzo, Tanioka-kun) at Kamioka full week
  • --
  • Continue SR3 Hang
    • Hang optic.
    • Hang RM.
    • Cable RM OSEMs.

Plan for week of 4/30

  • Shoda-san at Mitaka.
  • Mark, Enzo at Kamioka Mon-Wed or TBD.
  • Others having fun doing Golden Week stuff.
  • --
  • Observe KAGRA Phase 1 operations, assist if problems arise.
  • Do BF TFs.
  • Continue SR3 hang.

To-Do Lists, Schedule

Vacation Info

  • Fabian vacation, 3/26-4/27 (then gone).

KAGRA/Subgroups/VIS/TypeB/Minutes (last edited 2022-10-28 10:02:46 by fabian.arellano)