= VIS Meeting on 2015/11/5 =
2015/11/5 After the NAOJ GWPO Meeting (14:00 - 17:00)

Kamioka NAOJ Room + SeeVogh

Participants: Shoda, Takahashi, Fujii, Ohishi, Michimura, Raffaele, Okutomi, Mark, Tatsumi, Akutsu, Manuel, Hirata, Fabian, Ishizaki, Aso

== Schedule ==
 * Schedule Plan (Aso)
  * [[attachment:05_VIS-2015-11-5.pdf|Latest schedule chart]]
  * Control test: are the transfer function measurements necessary ?
   * Remote measurement is a possibility.
   * Change "control test" -> "signal checking" (not including TF measurement)
   * We need to come up with a way to make the working hour longer (two teams taking shifts ?)

== PR ==
 * Test Hanging Status (Shoda)
  * Galled screws (Takahashi)
   * Galled screw was cut.
   * Another screws almost galled, but we were able to remove them.
   * By using turn backles, we lifted the security interface plate horizontall and were able to put the screw without galling.

 * Production of new EQ stop screws (Takahashi)
  * Need to make new EQ stop rods because of the screw galling.
  * We had 6 sets. Now we lost 1set. We need 4 sets for iKAGRA. No need to hurry up in producing them.

 * Digital system (Shoda, Okutomi, Fujii)
  * A simple model with only one filter is available
  * Sattelite box and coil drivers are ready
  * Need to check the OSEM (Tue)
  * '''Where to put the satellite box ? Grounding ? -> Mark '''
  * '''Digital system preparation (confirm that the model works) -> Okutomi '''

 * Cleaning of the chamber (Okutomi)
  * Will consider to out source. '''Aso will talk with Saito-san. '''

 * Cable status (Takahashi)
  * 1st set will be delivered in the next Monday.
  * 2nd set at the end of the next week
  * Remaining ones in the following weeks.
  * Call for shift for cable checking ? Need to establish the checking procedure first. '''Then call for shift (Takahashi) '''

 * Additional PR mirror box (Tatsumi)
  * Order was placed.
  * Delivery before 1st Dec.

 * Production of additional PR winches (Akutsu)
  * Ordered all the parts. Delivery before 1st Dec.
  * '''Assembly work needs to be scheduled  '''

 * PR Optical Bench (Akutsu)
  * Ordered the required screws. Delivery in 10 days.
  * Height adjustment will be done at the time as the preparation work for PR3 installation.

 * RM compensation mass: do we have enough of them ? (Fabian)
  * Having some problem with screw model in CAD (density was wrong). Hirata-san is fixing it.
  * '''We should order compensation masses with various thickness (Takahashi) '''
  * Lock nuts may have to be changed to cope with the changed length of the EQ stop screws. -> probably this is not so important.

 * RM EQ stop screw position (Akutsu, Shoda)
  * A stop screw will penetrate an opening in the RM.
  * '''Hirata-san will check if we can move the screw holes up or down to solve the problem. '''

 * Next week (from 11/9) plan (Aso)
  * Mechanical Assembly (Takahashi, Shoda, Mark, Fabian, Fujii)
   * Mon: Put BF
   * Tue: OSEM signal check
   * Wed: Hang IM
   * Thu - Fri: Assemble IMRM
  * Digital system preparation (Okutomi): Try to run the simple model on the computer near the PR3
  * Cleaning: discuss with Hirose-san, Nakano-kun to establish the procedure
  * Travel plan
   * Takahashi: Mon-Thu
   * Shoda: full week
   * Fujii: Wed - Fri.
   * Okutomi: full week
   * Fabian: Wed - Fri.
   * Mark: Mon-Tue
   * Ohishi: Mitaka on Wed. Thu.
   * Aso: Mitaka on Mon.

== BS ==
 * BS Assembly Frame Design (Aso, Hirata)
  * We need to discuss the IM alignment mechanism for hanging frame part -> Change the scews to ball point ones: Takahashi-san already bought them.
  * Since the frame is very tall, we need a step or intermediate height floor safe work. Mark will give us prefered height
  '''-> Mark will send us the drawing with possible step heights. '''

 * BS magnet size (Michimura)
  * Recomendation from the special meeting: reduce the size of the magnet by a factor of 30.
  * Paired magnets for reducing the magnetic field noise
  * '''IM magnet size: needs to be checked -> Shimoda, Michimura '''

 * BS gluing jigs (Tatsumi)
  * We haven't placed order yet. But the company has started some manufacturing.
  * Can we wait 10 days for order until we have the thermal noise result ?

 * Not enough crane height problem (Hirata, Saito)
  * There seems to be some solution.
  * Asked Saito-san to give us the plan.

 * IP Base Clamp (Fabian)
  * '''Fabian will send a new version soon (by the end of the week) '''

 * BS clean bag (Aso)
  * '''Will design it soon as the size of the assembly frame is almost fixed '''

== Other ==
 * Screw inventory (Ishizaki)
  * Ishizaki-san came to Kamioka to make an inventory of the screws we have.
  * Print out the inventory. Check when you use screws.

 * PR suspension model checking (Hirata, Akutsu)
  * EQ stop part is finished
  * Started working on the payload part

 * Watch dog system (Tanaka)
  * Got a new document from Tanaka-san

 * Clean suits (Aso)
  * Asked Miyoki-san to order many

 * ETM installation procedure (Takahashi)
  * '''Will have a discussion next week '''

 * Magnetism of the OSEM screw (Akutsu)
  * Sekiguchi-kun pointed out a possible problem with magnetism of the screws around OSEM. -> '''Check with Sekiguchi-kun   '''

 * GAS blade inspection by Virgo (Takahashi)
  * Waiting for more information (mostly shipping info) from Ando-san

 * Safety at the site (Takahashi, Ishizaki)
  * Hirose-san will prepare a clean cloth to be put under the 2F floor to catch fallen items.

== Next meeting ==
2015/11/13(Fri) 13:30