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 * Type B Past Week Summary
  * Fabian finished dummy BS assembly.
  * Mark and Tatsumi-san glued magnets into both types of BS optic flags, and discs into BS IM flags. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=1815 |klog]] Two optic flags had to be redone because the magnets moved while the glue was drying. Hirata-san helped remove the magnets with acetone in the ultrasonic cleaner. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=1818|klog]]
  * Tatsumi-san, Fabian and Mark took the dummy BS to Kashiwa and glued the flags and prisms. We will check status on Mon 6/13.
  * Hirata-san measured another filter.
  * Hirata-san washed a batch of parts.
  * Hirata-san worked on work platforms for the installation.
  * Hirata-san looked for a crane scale for use at the site. (We decided the 500 kg version of the one used at TAMA.)
  * Hirata-san worked on making some guide parts for the PI installation (Misumi parts with minor additional machining from ATC).
  * We finalized a design for simple SS mirror parts for the dummy BS with Akutsu-san. They will be made by ATC.
  * Mark worked on list of items for purchase in FY2016 and on the schedule.
  * Fabian did more work on the IM assembly. It is nearly done and he will start on the RM next week.
 * Type B ongoing issues
  * Can we make SR wire breakers bigger?
   * Fukushima-san will start on machining test soon (as of 5/27).
  * Not enough crane height problem (Hirata, Saito) - no action since last week
  * Ballast masses for payload
   * Initial batch received - ordered extra smaller ones to allow for adjustments.
  * Lower breadboard stuff
   * '''Need to be incorporated into the procedure document. Discuss with Takahashi (Mark)'''
   * Breadboard springs (in manufacture, expected end of July)
   * Nail-head parts: quote from Mirapro received, not urgent, will be combined with assembly frame order.
  * Clean bag - expected 6/8.
 * Documents
  * BS Assembly Procedure [[https://onedrive.live.com/redir?resid=D5CCFA70A378E0D0!195&authkey=!AM_usynuo9QI57g&ithint=folder,webloc|E1504235 draft]]		 === Type B (Mark) ===
==== Report for weeks of 5/14, 5/21 ====
 * We weighted the IM/... section of the SR3.
 * We set up for the F0 blade prototype test.
 * Takahashi-san characterized the F0 prototype blades, and ordered final blades based on the BS and SR mass budgets.
 * Hirata-san characterized the LBB blades and identified three sets with blades of similar strength, plus two weaker ones. However he realized that M12x50 Bumax screws for the blade sets had not been ordered, so he got a new quote and ordered them for delivery 6/11.
 * Mirapro installed the mushroom section of the SRM tank.
 * We craned in the BF and cabled and tested the yaw pico, the FR stepper and the LVDT.
 * We hung the IM/... section from the BF, removed ≈200 g of trim mass and rearranged the rest to get the desired height, pitch and roll.
 * We added the sides of the IRM and the IM OSEMs, cabled the OSEMs, and adjusted everything to get good lateral and in/out alignment of the OSEMs.
 * Enzo did TFs using the IM OSEMs and the BF LVDT.
 * Hirata-san organized getting the LBB damper rings into the SR3 tank. He joined the halves of the Cu and magnet rings and got them ready for craning (which will happen later when we have rebuilt the SR3 IP and have somewhere to park the lid of the vacuum chamber). However he encountered a problem with the top ring: one of the screw holes in the top of the tank is not fully threaded, so one of the pillars supporting the top ring cannot be attached. He is considering various options.
 * Hirata-san and Kozu-kun made rod assemblies for the LBB damper rings.
 * Enzo made a batch of flipping and non-flipping feedthrough adapters.
 * Yamamoto-san connected up the SRM rack.

==== Plan for week of 5/28 ====
 * Mark, Enzo at Kamioka Mon-Fri.
 * Hirata-san at Kamioka Tue-Fri. (Mon is monthly Mitaka day.)
 * Kozu-kun at Kamioka Mon only. (Rest of week is job interviews.)
 
 * TBD.
==== Plan for week of 6/4 ====
 * Mark, Enzo, Hirata-san, Kozu-kun at Kamioka Tue-Fri. (Mon is NAOJ medical checkup.)
 
 *

==== 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 ====

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for weeks of 5/14, 5/21

  • We weighted the IM/... section of the SR3.
  • We set up for the F0 blade prototype test.
  • Takahashi-san characterized the F0 prototype blades, and ordered final blades based on the BS and SR mass budgets.
  • Hirata-san characterized the LBB blades and identified three sets with blades of similar strength, plus two weaker ones. However he realized that M12x50 Bumax screws for the blade sets had not been ordered, so he got a new quote and ordered them for delivery 6/11.
  • Mirapro installed the mushroom section of the SRM tank.
  • We craned in the BF and cabled and tested the yaw pico, the FR stepper and the LVDT.
  • We hung the IM/... section from the BF, removed ≈200 g of trim mass and rearranged the rest to get the desired height, pitch and roll.
  • We added the sides of the IRM and the IM OSEMs, cabled the OSEMs, and adjusted everything to get good lateral and in/out alignment of the OSEMs.
  • Enzo did TFs using the IM OSEMs and the BF LVDT.
  • Hirata-san organized getting the LBB damper rings into the SR3 tank. He joined the halves of the Cu and magnet rings and got them ready for craning (which will happen later when we have rebuilt the SR3 IP and have somewhere to park the lid of the vacuum chamber). However he encountered a problem with the top ring: one of the screw holes in the top of the tank is not fully threaded, so one of the pillars supporting the top ring cannot be attached. He is considering various options.
  • Hirata-san and Kozu-kun made rod assemblies for the LBB damper rings.
  • Enzo made a batch of flipping and non-flipping feedthrough adapters.
  • Yamamoto-san connected up the SRM rack.

Plan for week of 5/28

  • Mark, Enzo at Kamioka Mon-Fri.
  • Hirata-san at Kamioka Tue-Fri. (Mon is monthly Mitaka day.)
  • Kozu-kun at Kamioka Mon only. (Rest of week is job interviews.)
  • TBD.

Plan for week of 6/4

  • Mark, Enzo, Hirata-san, Kozu-kun at Kamioka Tue-Fri. (Mon is NAOJ medical checkup.)

To-Do Lists, Schedule

Vacation Info

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