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At Kamioka (Mark, Fabian, Enzo, Hirata-san):
 * We improvised a solution for ballast mass on the BF, using some heavy dog clamps meant for pedestals, washed and wrapped in foil. We we use them for the duration of the BS Test Hang and then swap them out for custom masses.
 * We put back the original BF jacks (replacing the cantilevered jacks that had been borrowed from the SF level to allow access to the BF blade screws).
 * We rearranged the BS rack, closing the gaps between boxes (per request of Miyakawa-san. We also renumbered some boxes, connectors and cables so as to use zero-based numbering (#0, #1, #2,...) throughout.
 * We routed the OSEM cables into the external cable rack (rather than through the PR2 area).
 * We connected up the BF LVDT, and BF fishing rod stepper motor.
 * We installed a signal generator for the LVDT.
 * We connected the super motor driver box to the Internet and attempted to set it up, but with no success so far.
 * We found the final picomotor driver (we have been using the one from TAMA in the clean booth).
 * We found many items that we will need soon, including the copper ring for the SF.
 * We found issues with the digital system (the computer driving the rack had been changed from k1pr2 to k1bs, which causes problems) and worked with DGS to fix them. It now mostly works but the real-time model crashes from time to time.
 
==== Plan for coming weeks ====
Next week:
 * Everyone (Mark, Fabian, Enzo, Hirata-san) at Kamioka, Monday-Thursday.
 * Work on electronics, possibly suspend and weigh BF.
Week after next:
 * Everyone (Mark, Fabian, Enzo, Hirata-san) at Kamioka, Monday-Friday.
 * Add SF and suspend BF.		 At Kamioka (Mark, Ohishi-san, Enzo, Yoshioka-kun, Kozu-kun):
 * We finished installing the RM OSEMs and installed the new Type5-2.2 and 5-2.4 OSEM cables.
 * We hung the RM and set its pitch.
 * We doubled-checked the BS and RM pitch, tightened the clamps and removed the winch system.
 * We installed the bottom section of the security structure to protect the RM/BS.
 * We lifted the IM/RM/BS section and weighed it. It was about 1.25 kg too heavy for the new BF, so we improvised a lighter set of ballast masses.
 * We installed the section of the security structure up to the BF ring, and the BF crossbars and jacks of the assembly frame.
 * We brought in the new BF.
 * We installed the BF-IRM rods and IRM top plate.
 * We reinstalled the IM flags and other items that had been taken off to use the winch system.
 * We hooked the BF-IM rod (with hex cable clamp). (We did not unlock the BF keystone.)
 * We cabled and tested the IM-PIT, IM-ROL and IM-YAW picos and the BF FR stepper (but not, yet, the BF LVDT).

==== Plan for week of 8/14 ====
Site closure: Mon, Tue<<BR>>
Vacation: Fabian (Mon-Fri)<<BR>>
Kamioka: Mark (Wed-Fri), Enzo (Wed-Fri), Yoshioka-kun (Wed, Fri), Ohishi (Thu-Fri).<<BR>>
 * Remove LBB blade units from PI, then remove blades and send for remachining.
 * Remove LBB rings from chamber and send for recleaning.
 * Unlock BF, adjust ballast masses on IM/RM/BS to correct pitch/roll/vertical.
 * Test, calibrate BF LVDT.
Mitaka: Hirata-san (Mon-Fri)<<BR>>
 * SR Stuff

==== Plan for week of 8/21 ====
Vacation: Fabian (Mon)<<BR>>
Kamioka: Mark, Ohishi, Fabian (Tue-Fri), Enzo, Yoshioka-kun (Tue, Wed, Fri), Kozu-kun.

Vacation Info:
Fabian: Fri 8/4 through Mon 8/21
Mark: TBD Mid-Oct

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Past week report

At Kamioka (Mark, Ohishi-san, Enzo, Yoshioka-kun, Kozu-kun):

  • We finished installing the RM OSEMs and installed the new Type5-2.2 and 5-2.4 OSEM cables.
  • We hung the RM and set its pitch.
  • We doubled-checked the BS and RM pitch, tightened the clamps and removed the winch system.
  • We installed the bottom section of the security structure to protect the RM/BS.
  • We lifted the IM/RM/BS section and weighed it. It was about 1.25 kg too heavy for the new BF, so we improvised a lighter set of ballast masses.
  • We installed the section of the security structure up to the BF ring, and the BF crossbars and jacks of the assembly frame.
  • We brought in the new BF.
  • We installed the BF-IRM rods and IRM top plate.
  • We reinstalled the IM flags and other items that had been taken off to use the winch system.
  • We hooked the BF-IM rod (with hex cable clamp). (We did not unlock the BF keystone.)
  • We cabled and tested the IM-PIT, IM-ROL and IM-YAW picos and the BF FR stepper (but not, yet, the BF LVDT).

Plan for week of 8/14

Site closure: Mon, Tue
Vacation: Fabian (Mon-Fri)
Kamioka: Mark (Wed-Fri), Enzo (Wed-Fri), Yoshioka-kun (Wed, Fri), Ohishi (Thu-Fri).

  • Remove LBB blade units from PI, then remove blades and send for remachining.
  • Remove LBB rings from chamber and send for recleaning.
  • Unlock BF, adjust ballast masses on IM/RM/BS to correct pitch/roll/vertical.
  • Test, calibrate BF LVDT.

Mitaka: Hirata-san (Mon-Fri)

  • SR Stuff

Plan for week of 8/21

Vacation: Fabian (Mon)
Kamioka: Mark, Ohishi, Fabian (Tue-Fri), Enzo, Yoshioka-kun (Tue, Wed, Fri), Kozu-kun.

Vacation Info: Fabian: Fri 8/4 through Mon 8/21 Mark: TBD Mid-Oct

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