Differences between revisions 245 and 295 (spanning 50 versions)
⇤ ← Revision 245 as of 2018-03-07 11:56:30 →
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Editor: MarkBarton
Comment:
← Revision 295 as of 2018-06-21 14:34:42 → ⇥
Size: 1842
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
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==== Report for week of 3/5 ====
 * 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 stuff them next week).
 * We calibrated the SR2 SF LVDT and FR.
 * We put the SF cap on and lifted and weighed the SF/... section.
 * 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 finished -v2 of the schedule ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779| L1807779]]).
 * Mark worked on slides for the ASJ and LVC meetings.
 * Sawada-san postponed the SRM mushroom work to next week and offloaded it to Mirapro.
 * ?? Finish recovering IM OSEM alignment.		 ==== Report for week of 6/11 ====
 * Enzo redid the SR3 BIO connections to match the now-working BS setup. He also fixed PR2, which had a similar problem.
 * Enzo replaced LPCDs with HPCDs in the SR3.
 * Hirata-san installed the cable clamps and Cu segments on the SF cap.
 * Hirata-san and Kozu-kun continued tuning the filter in PI #3. Unfortunately it seems to be rather weaker than expected, and we have not found a compression setting that gives a good frequency. We may have to use tricks like reducing the number of Cu segments on the SF (or using Al ones) to save weight.
 * Mark, Enzo and Terrence suspended the BF/... section from the SF, and got it aligned for TFs.
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==== Plan for week of 3/12 ====
 * Shoda-san at Mitaka.
 * Mark at ASJ (Chiba) Fri, then Mitaka.
 * Hirata-san vacation Mon 3/5; Kamioka Tue-Thu; Mitaka Fri
 * Others Kamioka Mon-Thu
 * F2F VIS Meeting and Farewell Party for Fabian at Mitaka on Friday.		 ==== Plan for week of 6/18 ====
 * Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri.
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 * Install boxes in SR3 and SRM racks.
 * Lay SR3 in-air cabling.
 * Continue rebuild of BFs.		  * Receive second and third sets of LBB damper rings.
 * Take TFs.
 * Cable, test SF LVDT and FR.
 * Add calculated ballast to SF.
 * Finish tuning F0 #3 for SR3.
 * Park F0 #1 (for SR2) in top of SR3 assembly frame.
 * Move F0 #3 behind SR3.
 * Move F0 #1 to "factory" area (in front of SRM) and start rebuild.
 * Install PI.
 * Suspend SF/... section.
 * Lots of cabling.
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==== Plan for week of 3/19 ====
 * Mark at LVC meeting
 * All others at Mitaka
 * --
 * 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
 * --
 * F0 Prototype Blade Test
  * Characterize blades.
  * Choose best set of three.
  * Remove cracked blades from filter in SRM area.
  * Set up test weights in SRM area, first floor.
  * Remove floor panel in SRM area, second floor.
  * Install chosen blades.
  * Measure load capacity.		 ==== Plan for week of 6/25 ====
 * Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri.
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 * [[KAGRA/Subgroups/VIS/TypeB/March2018]]
 * [[KAGRA/Subgroups/VIS/TypeB/April2018]]
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 * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779-v1 Type B Schedule (SR)]]  * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779 Type B Schedule (SR)]]
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 * Mark at LVC, then vacation, 3/18 (Sun) - 4/1 (Sun)
 * Hirata-san vacation, Mon 3/5.
 * Fabian vacation, 3/26-4/27 (then gone). 		 * Kozu-kun: 7/4 Tokyo
 * Enzo: 7/5-6 NAOJ Party, Mitaka
 * Terrence: 8/24-26 f2f, then returns to Hong Kong.
 * Enzo: 9/14 JPS, 9/15 through 10/18 vacation in Chile

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for week of 6/11

  • Enzo redid the SR3 BIO connections to match the now-working BS setup. He also fixed PR2, which had a similar problem.
  • Enzo replaced LPCDs with HPCDs in the SR3.
  • Hirata-san installed the cable clamps and Cu segments on the SF cap.
  • Hirata-san and Kozu-kun continued tuning the filter in PI #3. Unfortunately it seems to be rather weaker than expected, and we have not found a compression setting that gives a good frequency. We may have to use tricks like reducing the number of Cu segments on the SF (or using Al ones) to save weight.
  • Mark, Enzo and Terrence suspended the BF/... section from the SF, and got it aligned for TFs.

Plan for week of 6/18

  • Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri.
  • --
  • Receive second and third sets of LBB damper rings.
  • Take TFs.
  • Cable, test SF LVDT and FR.
  • Add calculated ballast to SF.
  • Finish tuning F0 #3 for SR3.
  • Park F0 #1 (for SR2) in top of SR3 assembly frame.
  • Move F0 #3 behind SR3.
  • Move F0 #1 to "factory" area (in front of SRM) and start rebuild.
  • Install PI.
  • Suspend SF/... section.
  • Lots of cabling.

Plan for week of 6/25

  • Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri.

To-Do Lists, Schedule

Vacation Info

  • Kozu-kun: 7/4 Tokyo
  • Enzo: 7/5-6 NAOJ Party, Mitaka
  • Terrence: 8/24-26 f2f, then returns to Hong Kong.
  • Enzo: 9/14 JPS, 9/15 through 10/18 vacation in Chile

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