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==== Past week report ====
At Kamioka (Mark, Fabian, Enzo, Perry, Hirata-san):		 ==== 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.
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 * Craned in the PI.
 * Assembled the thrust bearing holder that receives the PI-SF rod. (It originally had a burr that prevented the bearing from seating properly, and so required filing and re-cleaning.)
 * Hooked the SF and lowered the jacks under the SF to suspend the SF/... section.
 * The top filter rose when unlocked, and required about 1.8 kg to send it back down. Therefore we may be OK - the top filter seems to have about 8 kg more capacity than as measured by G&M. The hex cable clamp (≈0.25 kg) and the cables between the PI and SF still have to be added, but we can get an extra 3 kg by removing one of the three Cu damper segments (and rearranging the other two).
 * Built and installed three LBB blade units.
 * Kept debugging the SF LVDT. We repaired several broken wires, but it's still not behaving correctly. 		==== Plan for week of ====
 * Shoda-san at Mitaka.
 * Hirata-san vacation Mon 3/5, then Kamioka
 * Fabian Mitaka Mon-Tue (COMSOL training), Kamioka Wed-Fri.
 * Others at Kamioka.
 * -
 * '''Remove LBB temporary ballast masses from BS chamber.'''
 * Finish recovering IM OSEM alignment.
 * Calibrate SF LVDT.
 * Lift SF/... section and check total mass and balance.
 * Get SRM tank mushroom section installed (Hirata-san, Kimura-san)
 * Set up for rebuilding of two BFs.
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==== Plan for coming weeks ====
For more detail, see [[KAGRA/Subgroups/VIS/TypeB/ToDo]].		 ==== 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
 * Install boxes in SR3 and SRM racks.
 * Lay SR3 in-air cabling.
 * Continue rebuild of BFs.
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Week of 5/1:
 * No activity (Golden Week).		 ==== 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.
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Week of 5/8:
 * Work from Tuesday.
 * Remove PI temporarily.
 * Add magnets to upper SF damper ring.
 * Reinstall PI with damper ring.
 * Reinstall PI-SF rod, this time with hex cable clamp.
 * Install PI yaw stepper.
 * Wire up PI yaw and vertical steppers.
 * Route cables from SF to PI (may involve removing part of Cu damper).		 ==== 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.

==== To-Do Lists, Schedule ====
 * [[KAGRA/Subgroups/VIS/TypeB/March2018]]
 * [[KAGRA/Subgroups/VIS/TypeB/April2018]]
 * [[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-v1 Type B Schedule (SR)]]

==== Vacation Info ====
 * 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).

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

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 (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.

Plan for week of

  • Shoda-san at Mitaka.
  • Hirata-san vacation Mon 3/5, then Kamioka
  • Fabian Mitaka Mon-Tue (COMSOL training), Kamioka Wed-Fri.
  • Others at Kamioka.
  • -

  • Remove LBB temporary ballast masses from BS chamber.

  • Finish recovering IM OSEM alignment.
  • Calibrate SF LVDT.
  • Lift SF/... section and check total mass and balance.
  • Get SRM tank mushroom section installed (Hirata-san, Kimura-san)
  • Set up for rebuilding of two BFs.

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
  • Install boxes in SR3 and SRM racks.
  • Lay SR3 in-air cabling.
  • Continue rebuild of BFs.

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.

To-Do Lists, Schedule

Vacation Info

  • 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).

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