= Agenda/Minutes of the VIS Meeting on 2018/11/16 =

2018/11/16 13:30 - 15:00

[[https://zoom.us/j/203743987|Zoom Meeting]]

Participants: Mark, Enzo, Aso, Takahashi, Sato, Kozu, Tanaka, Hirata, Fujii, Fabian, Lucia, Eleonora, Okutomi, Ishizaki

== Progress report ==
=== Schedule Chart ===
Type-A  : ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7320|PDF/MPP]])

Type-B: ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|PDF/MPP]])

Type-C: ([[ https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9013|XLSX]])

=== Type-A (Takahashi) ===
==== Past week report ====
[Y-end]
  * Assembled and calibrated the geophones.

[Mitaka]
  * Designed and ordered the yaw FR parts.
  * Designed the ballast weight for TF.

==== Plan for coming weeks ====
  * Adjustment of the filer position in IYV/EYV.
  * Installation of the geophone pods to EYV.

=== Type B (Mark) ===
==== Report for week of 11/12 ====
 * SRM
  * Hirata-san and Mark craned the LBB ring sandwich to the ceiling of the lower half of the tank, and set the heights of the jacks on the upper half.
  * Fabian and Hirata-san finished the in-vacuum cabling.
  * Enzo ran DC power to the second SRM stepper driver and did the rest of the in-air cabling.
  * We're now ready for final tests of the SF/... items and initial tests of the PI items.
  * Enzo and Fujii-kun built three geophones for SRM. They still need testing/characterization/sealing.
  * Mark worked on the height budget.
 * SR2
  * Enzo experimented with [[http://www2.mpq.mpg.de/~ros/geo600_docu/soft/liso/manual.pdf|LISO]] (circuit analysis software which, among other functions, can fit measured TFs with a ZPK model) but then wrote his own fitting software in Python and used it to build Foton models of key TFs of the SR2. (These are in slots FM6-FM8 of the DAMP blocks and should not be accidentally enabled.)
 
==== To-Do Lists, Schedule ====
 * [[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 Type B Schedule (SR)]]

==== Plan for week of 11/19 ====
 * Friday 11/23 is Labor Thanksgiving Day.
 * Mark, Enzo and Fabian at Kamioka Mon-Thu.
 * Hirata-san at Kamioka Tue-Thu (Mitaka on Mon for Engineering Promotion Office meeting).
===== SRM =====
 * Characterize geophones.
 * Go/no-go test of all electronics items, especially SF/... section.
 * Finish vertical height check and adjust SF trim mass as required.
 * Unlock IP and center roughly.
 * Check/adjust alignment of SS.
 * Calibrate IP LVDTs.
 * Add arc weights and geophones.
 * Improve centering/tuning of IP and SS alignment.
 * Disconnect cables at feedthroughs, lock suspension.
 * Crane into tank.
===== SR2 =====
 * Assist MIF team with pico cables and LBB breadboard ballast.
 * Install SR2 OL pillar, shelf and viewports (with AOL supervision)?

==== Plan for week of 11/26 ====
 * Move SRM in-air cables over to tank.
 * Remove First Contact.
 * Unlock and align SRM.
 * Hook and roughly ballast LBB.
 * Move furniture near SR racks to prepare for flooring repair (week of 12/10)

==== Plan for week of 12/3 ====
 * f2f Meeting at NAOJ - no Kamioka work.

==== Vacation/Event Info ====
 * Hirata-san at Mitaka, Mon 11/19 (Engineering Promotion Office meeting).

=== Type-Bp (Shoda) ===
==== Past week report ====
==== Plan for coming weeks ====

=== OMMT & OSTM (Ohishi) ===
==== Past week report ====
==== Plan for coming weeks ====

=== VIS electronics (Tanaka) ===
==== Past week report ====
==== Plan for coming weeks ====

=== Other site works ===

=== Safety ===
 * Incidents:

 * Foreseen risks
  * Type-A: 
  * Type-B:

== Discussion ==
=== December VIS work and vacuum work ===
 * 12/10-11: Break the vacuum. Need to monitor the IP drift (BS, ITMX, ETMX)
 * 12/12-14: BS maintenance works
 * 12/12-13: Y-front Type-A Yaw FR replacement
 * 12/13: PR2 remove the broken IM OSEM cable -> repair
 * 12/17 - : Lazer hazard starts
 * 12/17: PR2 install a new cable
 * 12/17-21: X-front Type-A Yaw FR replacement,  X-end Type-A Yaw FR replacement & FR repair
 * 12/24-28: Y-end Type-A Yaw FR replacement
 * 12/17-21: SR Yaw FR installation
 * 1/15 - : Center area, X-front and Y-end vacumm pumping. Need to monitor IP drift (BS, SR, ITMX, ETMY)
 * 1/21 - : Y-end vacuum break. Y-front vacuum pumping. Need to monitor drift (ETMY, ITMY)
 * 2/4 - : Y-end vacuum pumping. Need to monitor drift (ETMY)

== Travel Plans ==
 * Travel (Week of 11/19):
  * Takahashi: 19-22
  * Okutomi:
  * Sato: 19-21
  * Lucia: 19-22
  * Fabian: 19-22
  * Mark: 19-22
  * Hirata: 20-22
  * Enzo: 19-22
  * Shoda: 
  * Ohishi:
  * Fujii: 20-22
  * Tanioka:
  * Tanaka:
  * Kozu (ICRR):
  * Arai (ICRR):

 * Travel (Week of 11/26):
  * Takahashi: 26-30
  * Okutomi:
  * Sato: 
  * Lucia: 26-30
  * Fabian: 26-30
  * Mark: 26-30
  * Hirata: 26-29(?)
  * Enzo: 26-29
  * Shoda:
  * Ohishi:
  * Fujii: 27-30
  * Tanioka:
  * Tanaka:
  * Kozu (ICRR):
  * Arai (ICRR):


== Next meeting ==
On 2018/11/30(Fri)