= Agenda/Minutes of the VIS Meeting on 2017/10/27 =

2017/10/27 13:30 - 15:00

Participants: Okutomi, Ishizaki, Aso, Mark, Sato, Hirata, Simon, Enzo, Fabian, Ohishi, Shoda, Tanaka


== Progress report ==
=== Schedule Chart ===
Type-A  : ([[TBD|PDF]],[[TBD|MPP]])

Type-B: ([[TBD|PDF]],[[TBD|MPP]])

 * Type-A: 
 * Type-B: 
 * Type-Bp: 

=== Type-A (Takahashi) ===
==== Past week report ====

[X-end]
  * Recovered the black out.
  * Checked signals for the BF damper.
  * Set the remote operation of the stepping motors.
  * Closed the top chamber.
  * Closed the cross tube.
  * Set the remote monitor of the vacuum gauge.

[Mitaka]
  * Assembled the BFs. One BF was completed. The other was assembled by a half.
  * Checked the ACCs. Two of six units have a problem.

==== Plan for coming weeks ====
  * Start evacuation in X-end.
  * Finish the assembly of BFs.
  * Service the ACCs.

[Plan in November]
  * 11/6-10 X-end: Disassembly of the EQ stop and the cabling.
  * 11/13-17 Transportation of the items from Akeno and Mitaka to the 2F in KAGRA.
  * 11/20-12/1 X-end: Reassembly of the EQ stop and the cabling.

=== Type B (Mark) ===
==== Past week report ====
At Kamioka (Mark, Fabian, Enzo, Hirata-san):
 * Hirata-san did an inventory of SR and other parts at Kamioka. 
 * Mark and Enzo finalized the geometry matrices for the IP, entered them in MEDM and updated the safe.snap.
 * Mark, Enzo and Fabian worked with Izumi-san et al. to align the BS. We got the +Y beam fairly close to aligned (to the second gate valve, near IY).

==== Plan for week of 10/30 ====

Kamioka: Mark and Enzo
 * Continue alignment of BS.
 * Realign OL.
 * Work on servos.

Mitaka: Fabian and Hirata-san
 * SR procurement.
 * New PI GAS FR design.
 * BS LBB ballast mass design.
 * SR cable lamp design.
=== Type-Bp (Shoda) ===
==== Past week report ====
 * We had a big problem on k1pr0 after the blackout.
 * PR2 recovered smoothly.
 * Now PR3 is recovered after several problems.
  * TFs are checked. The suspension status looks good.

 * Problems to be solved:
  * large noise in PR2 OSEMs.
  * TF gain decrease by 30dB (Pr3 BF GAS)

==== Plan for coming weeks ====

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

=== Watchdog system (Tanaka) ===
==== Past week report ====
  *Creation of extended I/O PCB plot type (With the Main 4ch WDS box and I/O box,I/O board For relay).-->
     *Wiring and Testing for EX I/O box(19 inch chassis) were completed.
     *Connection test with WDS and digital I/O card's emulation tool.
  
  *I held a meeting to make estimates with several vendors.-->
     *I got an estimate from the vendor(Denseisirius).
     *About 5.3 million yen.
  *Request for fabrication of JGW-D1605239(Binary IO Converter Chassis) for use with WDS(JGW-T1707285(docx)).-->Wait for results.
==== Plan for coming weeks ====
  *Execution of the final version operation test for mass production ->Detailed exam(Ongoing).

  *I want to start ordering mass production version.
  
  *I'd like to conduct the final exam in KAGRA.-->On the experiment plan at the KAGRA site of the WDS system[[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0067/E1706737/001/Project%20WDS%20Experiment%20plan%20Drifts%20version%20170516.pdf|JGW-E1706737(PDF)]].
    *Experiments in phase 2 and phase 3(However,only one 4ch WDS main box is to be tested).
    *The target is a Low power type.
    *My desired test period is from 7th Nov to 9th Nov(6th Nov is move date and 10th Nov is preparation day).
  
=== Other site works ===

 * Fire drill: Nov. 16 from 11AM - 12AM
 * Commissioning Workshop: Nov. 27 to Dec. 1st

=== Safety ===
 * Incidents: no

 * Foreseen risks
  * Type-A: vacuum evacuation
  * Type-B: possible crane work
  * Type-Bp: no work

== Discussion ==
 * Type-A accelerometers
  * We have only two spare accelerometers
  * These spare ones have different sensor heads. -> need to exchange the head when used.
  * We should consider restarting the collaboration with NIKHEF for the next generation of accelerometers.

=== Plan for the coming months ===

== Travel Plans ==
 * Travel (Week of 10/30):
  * Takahashi:
  * Okutomi: 10/30 - 11/3
  * Sato:
  * Ishizaki:
  * Mark: 10/30 - 11/2
  * Fabian:
  * Hirata:
  * Enzo: 10/30 - 11/2
  * Shoda:
  * Ohishi:
  * Fujii:
  * Tanaka:
  * Kozu (ICRR):
  * Arai (ICRR):


 * Travel (Week of 11/6):
  * Takahashi: 
  * Okutomi: 6 - 10
  * Sato: 
  * Ishizaki: 
  * Mark: 
  * Fabian: 
  * Hirata: 
  * Enzo: 
  * Shoda: 6 - 10 
  * Ohishi: 
  * Fujii:
  * Tanaka: 6 - 10
  * Kozu (ICRR): 
  * Arai (ICRR): 

== Next meeting ==
On 2017/11/10(Fri)