Differences between revisions 175 and 204 (spanning 29 versions)
⇤ ← Revision 175 as of 2017-08-12 14:39:56 →
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==== 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).		 ==== Past two weeks report ====
Kamioka (Mark, Enzo, Kozu-kun):
 * Supported IA team.
 * Replaced LPCDs for IM OSEMs with HPCDs for increased pitch/yaw range.
 * Re-zeroed OL after significant change of beam position during IA.
 * Re-laid-out OL to improve focus of lens to LEN QPD.
 * Offloaded the pitch/yaw actuation at the IM OSEMs using the IM pitch/yaw picos.
 * Enzo worked on design of control loops using the OL.
 * Kozu-kun worked on diagonalizing the OL.
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==== 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		 Mitaka (Fabian, Hirata-san):
 * Fabian did mechanical design:
  * F0 FR
  * Cable clamps for the SR IP base.
  * New SR recoil ballast masses.
  * LBB ballast.
  * Update of BS 3D CAD with the as-built ballast.
 * Hirata-san
  * made and updated inventory list for SR.
  * made order list and asked some quotes.
  * Ordered some parts.
  * Talked with mirapro about SRM optical bench.
  * Made some drawings for SR preparation.
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==== Plan for week of 8/21 ====
Vacation: Fabian (Mon)<<BR>>
Kamioka: Mark, Ohishi, Fabian (Tue-Fri), Enzo, Yoshioka-kun (Tue, Wed, Fri), Kozu-kun.		 ==== Plan for week of 11/13 ====
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Vacation Info:
Fabian: Fri 8/4 through Mon 8/21
Mark: TBD Mid-Oct		 Enzo and Kozu-kun at Mitaka
 * Servos
 * Diagonalization of OL
 * TFs of BF
 * Documentation

Mark and Fabian at Kamioka.
 * Mark attends commissioning workshop at U Toyama.
 * Support BF characterization work.
 * Prepare for mirror gluing.
 * Prepare for IM assembly.

Hirata-san at Mitaka
 * SR procurement.
 * Get BS prism-gluing jigs reworked for use with PR/SR mirror box.

==== Plan for week of 11/20 ====
 * Holiday on Thu 3/23
 * Fabian at commissioning workshop
 *

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Past two weeks report

Kamioka (Mark, Enzo, Kozu-kun):

  • Supported IA team.
  • Replaced LPCDs for IM OSEMs with HPCDs for increased pitch/yaw range.
  • Re-zeroed OL after significant change of beam position during IA.
  • Re-laid-out OL to improve focus of lens to LEN QPD.
  • Offloaded the pitch/yaw actuation at the IM OSEMs using the IM pitch/yaw picos.
  • Enzo worked on design of control loops using the OL.
  • Kozu-kun worked on diagonalizing the OL.

Mitaka (Fabian, Hirata-san):

  • Fabian did mechanical design:
    • F0 FR
    • Cable clamps for the SR IP base.
    • New SR recoil ballast masses.
    • LBB ballast.
    • Update of BS 3D CAD with the as-built ballast.
  • Hirata-san
    • made and updated inventory list for SR.
    • made order list and asked some quotes.
    • Ordered some parts.
    • Talked with mirapro about SRM optical bench.
    • Made some drawings for SR preparation.

Plan for week of 11/13

Enzo and Kozu-kun at Mitaka

  • Servos
  • Diagonalization of OL
  • TFs of BF
  • Documentation

Mark and Fabian at Kamioka.

  • Mark attends commissioning workshop at U Toyama.
  • Support BF characterization work.
  • Prepare for mirror gluing.
  • Prepare for IM assembly.

Hirata-san at Mitaka

  • SR procurement.
  • Get BS prism-gluing jigs reworked for use with PR/SR mirror box.

Plan for week of 11/20

  • Holiday on Thu 3/23
  • Fabian at commissioning workshop

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