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 * Type B Past Week Summary
  * Mark did a Type B schedule presentation at the Extended Chiefs Meeting. It was decided to order a second assembly frame so that the BS/SR2/SR3/SRM installations can overlap more.
  * Mark and Hirata-san helped Mirapro construct the assembly frame ([[https://goo.gl/photos/tVGoebw7FTRMAYB2A|photos]]).
  * Mark and Hirata-san took the jacks and adapter plates off the frame, and cleaned them to remove as much of the original grease as possible. Takahashi-san has offered to re-grease them with vacuum grease.
  * Mark and Hirata-san wiped down the assembly frame and put the clean bag on it.
  * Saito-san, Ohishi-san and several people from Mirapro adjusted the position of the BS chamber.
  * Mark plugged the geophones back into the PR2 rack and checked that the repaired cable was working.
  * Fabian did more pre-assembly of the RM/IM/IRM.
  * Takahashi-san ordered 10 mm diameter x 10 mm long magnets for the IM flags.
  * Mark inspected the SR2 section of the clean booth to see where SR2 assembly could be done. The slot in the ceiling for the crane runs in the ±X direction (at right angles to that for the BS), and there are suitable space on both the +X and the -X sides of the SR2 tank.
  * Hasegawa-san (of Hirose-san's lab) took delivery of the cup for removing the prisms on the dummy BS. It fits well.
  * Tatsumi-san ordered [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5357|modifications]] to the BS gluing jig to make it easier to remove the pieces holding the flags after the flags are attached. The parts are expected Fri 7/8. He also ordered more EP30, but this won't arrive until the week of 7/18.
 * Type B ongoing issues
  * Wires
   * Need to decide RM wire thickness and order BS and RM wires. Lead time is a few days from Nilaco.
  * OSEMs
   * Akutsu-san is working to get wide-mouth OSEMs
  * Longer cables for BF->PI and SF->PI.
   * Connectors RECEIVED, cables being made.
  * SR machining test ongoing.
  * Lower breadboard stuff
   * Installation to be incorporated into the procedure document. Mark/Takahashi to discuss.
   * Breadboard springs (in manufacture, expected end of July)
   * Nail-head parts - RECEIVED.
  * Documents
   * BS Assembly Procedure [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4235| E1504235]], [[https://onedrive.live.com/redir?resid=D5CCFA70A378E0D0!195&authkey=!AM_usynuo9QI57g&ithint=folder,webloc|E1504235 draft]]
  * To-do list for Fabian/Hirata-san during Mark's vacation
   * Finish assembly of BS IM, RM and IRM (Fabian).
   * Weigh IM/RM/IRM (Fabian, Hirata)
   * Pack/ship IM/RM/IRM to Kamioka (Hirata/Fabian).
   * Analyze geophone data (Mark, Shoda)
   * Remove glue from dummy BS face (Fabian).
   * Remove prism from dummy BS (Hirose, Fabian?)
   * Reglue flags and prisms (Tatsumi, Fabian)
   * Buy wire for BS and RM (Hirata)
   * Clean wire for BS and RM (Hirata)
   * Do fit/function test of winches (Fabian/Hirata)
   * Ship winches to Kamioka (Hirata/Fabian)
   * Work on BS simulation (Fabian)
   * Do Inventor assembly for SR2 in chamber and on assembly frame (Hirata)
   * Apply vacuum grease to jacks for BS assembly frame (Takahashi)
   * Write more of payload assembly procedure (Fabian)
   * Write more of main assembly procedure (Mark)
  * Longer term to-do list
   * Do BS Simulink model (Mark, Kokeyama)
   * Do 2D drawings of SR2 parts (Hirata)
   * Redesign SRx IM wire clamps for larger prisms, remachined RMs.
   * Order SRM/PRM parts (Hirata/Shoda)
   * Order SRx fasteners (Hirata)
   * Check SR RM machining test progress (Hirata)		 === Type B (Mark) ===
==== Past week report ====

 * Mark finished the OL calibration/diagonalization calculation and wrote it up as klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=3835|3835]] and [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7205| T1707205-v4]].
 * We glued the prisms and magnets on the SR2.
 * We got Miyo-kun to set up the SR2-IM pico driver and tested it and the picos that will be used in the IM.
 * We weighed the BF for the SR2.
 * Enzo put DIO cards in the IO chassis and cabled them to the coil drivers.
 * Enzo found more of the in-vacuum cables that will be needed for SR2. Only a few remain to be found.
 * Enzo and Shoda-san installed the vacuum-feedthroughs on the assembly frame and routed many of the in-air cables.
 * Hirata-san and Mark moved the PR/SR trolley system from SR3 to SR2, reconfigured the top of the assembly frame and checked the crossbar heights. (Everything was quite close to the drawing, but a few small adjustments up/down will be required.)
 * Fabian found an issue with the IM: we have two of the upper movable masses and no lower ones. Probably one of the PRs has been built with two lower masses. Unfortunately an upper mass has an extra hole in an inconvenient place and can't be used as a lower mass. Hirata-san ordered a suitable plug part from Misumi, and Fabian washed it and glued it in with EP30.
 * Fabian assembled the RM and test-assembled the IRM. (The IRM will have to be partly disassembled during installation.)
 * Shoda-san and Enzo got all the control loops working on the BS, and worked with Izumi-san to steer the beam down the Y-arm. They found the passive damping was not working very well, even after correcting a 1.5 mm height error in F0. We may need to lower the damper ring.
 * Shoda-san created a BS Guardian.
 * We got Yamamoto-san to connect up the SR2 rack and create an SR2 real-time model.

==== Plan for week of 12/18 ====
 * Shoda-san vacation
 * Mark, Fabian, Enzo, Kozu-kun at Kamioka Mon-Wed.
 * Assembly frame alignment and optical table centering.
 * Install IM ring interface blocks and IM ring.
 * Finish IM assembly and pico test.
 * Do inventory of ballast masses.
 * OL setup.
 * Install new jack receptacles (in SR3 area, second floor) on load gauge adapter (SR2 area, second floor).

==== Plan for week of 12/25 ====
 * Mark, Enzo, Fabian vacation
 * Shoda-san, Kozu-kun, Hirata-san at Kamioka Mon-Thu.
 * Hang SR and RM?

==== Vacation Info ====
 * Mark 12/22-1/3
 * Enzo, 12/21-12/27 (but ''not'' 12/28)
 * Fabian 12/22-1/5
 * Hirata-san 12/21-22 (conference)
 * Shoda-san 12/18-21
  

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Past week report

  • Mark finished the OL calibration/diagonalization calculation and wrote it up as klog 3835 and T1707205-v4.

  • We glued the prisms and magnets on the SR2.
  • We got Miyo-kun to set up the SR2-IM pico driver and tested it and the picos that will be used in the IM.
  • We weighed the BF for the SR2.
  • Enzo put DIO cards in the IO chassis and cabled them to the coil drivers.
  • Enzo found more of the in-vacuum cables that will be needed for SR2. Only a few remain to be found.
  • Enzo and Shoda-san installed the vacuum-feedthroughs on the assembly frame and routed many of the in-air cables.
  • Hirata-san and Mark moved the PR/SR trolley system from SR3 to SR2, reconfigured the top of the assembly frame and checked the crossbar heights. (Everything was quite close to the drawing, but a few small adjustments up/down will be required.)
  • Fabian found an issue with the IM: we have two of the upper movable masses and no lower ones. Probably one of the PRs has been built with two lower masses. Unfortunately an upper mass has an extra hole in an inconvenient place and can't be used as a lower mass. Hirata-san ordered a suitable plug part from Misumi, and Fabian washed it and glued it in with EP30.
  • Fabian assembled the RM and test-assembled the IRM. (The IRM will have to be partly disassembled during installation.)
  • Shoda-san and Enzo got all the control loops working on the BS, and worked with Izumi-san to steer the beam down the Y-arm. They found the passive damping was not working very well, even after correcting a 1.5 mm height error in F0. We may need to lower the damper ring.
  • Shoda-san created a BS Guardian.
  • We got Yamamoto-san to connect up the SR2 rack and create an SR2 real-time model.

Plan for week of 12/18

  • Shoda-san vacation
  • Mark, Fabian, Enzo, Kozu-kun at Kamioka Mon-Wed.
  • Assembly frame alignment and optical table centering.
  • Install IM ring interface blocks and IM ring.
  • Finish IM assembly and pico test.
  • Do inventory of ballast masses.
  • OL setup.
  • Install new jack receptacles (in SR3 area, second floor) on load gauge adapter (SR2 area, second floor).

Plan for week of 12/25

  • Mark, Enzo, Fabian vacation
  • Shoda-san, Kozu-kun, Hirata-san at Kamioka Mon-Thu.
  • Hang SR and RM?

Vacation Info

  • Mark 12/22-1/3

  • Enzo, 12/21-12/27 (but not 12/28)

  • Fabian 12/22-1/5
  • Hirata-san 12/21-22 (conference)
  • Shoda-san 12/18-21

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