Agenda/Minutes of the VIS Meeting on 2016/10/14

2016/10/14 13:30 -

Participants:

Progress report

Schedule Chart (PDF,MPP)

Minutes of Type-A Meeting
Pre-isolator: The sensitivity measurement of ACC is on going at the site.
EQ stop, release sensor, dummy payload: Production is on going.
Bottom Filter: Assembly of the second BF was finished. SUS bearings were delivered.
BF damper: The bidding was announced on 14th. Open bidding is on 9th November.
Maraging wire: We asked Obuchi-san redesign of the wire for Type-A with safety margin of 2.
Installation: Review on the installation procedure will be held on 4th November.

2D/3D drawings
- Uploaded slightly simplified (=some parts removed) step and dwg files of TAMA TM/RM type suspension to Dropbox (Subsystems/VIS/TypeC/).
  - Please notice there still remain some small mistakes.
Transfer function of Pitch-Pitch and Yaw-Yaw of IMMT suspensions as iKAGRA ETMs
- Fitting was done by Kasuya-san, Hisatomi-san, and Shimoi-san.
- Kasuya-san kindly wrote How to use LISO in Japanese.
- Compared with TAMA data, phase delayed at higher frequencies.
Discussed movable range of the mirror system with equipped xy stages.
- Originally the xy stage move mirror system (Mirror/IM/Magnet box/coil support) +/-2.5mm.
- MIF people require +/-1cm.

Maraging and SUS rod issue follow up.
- Order status: Type-B Maraging rods, SUS rods
- Type-A Maraging rod re-optimization status (Takahashi)
  - Nail head diameter 9mm (possible ?)

2016/10/21(Fri) 13:30 - VIS F2F: Oct. 28, Nov. 18, Dec. 2