Agenda/Minutes of the VIS Meeting on 2017/6/9

2017/6/9 13:30 -

Participants:

Progress report

Schedule Chart : (PDF,MPP)

• Type-A:
• Type-B:
• Type-Bp:

Type-A (Takahashi)

Past week report

Installation in Y-end:

6th(Tue)

• Tuned the TF. The frequency was 0.30Hz. More compression is necessary.
• Checked the range of FR on the TF. It was 1.5mm. The motor coupler should be replaced.
• Set the F1 height to 60mm by the bottom screws, and hooked the wire to the receptacle on the TF.
• Inserted the wire clamp onto the top plate.
• Measured the yaw deviation of the EQ stop.
• Calibrated the LVDT on the TF.

7th(Wed)

• Made three spacers of 60mm long for the F1.
• Tested hooking of the wire using the removable spacers.
• Set the F1 on the spacers. The bridge frame was dismounted.
• Lifted up the EQ stop and adjusted the yaw deviation.
• Applied cabling to the top plate along the rod of the EQ stop.

8th(Thu)

• Lifted down the EQ stop. The top plate was put on the frame lock.
• Adjusted the position of the frame lock.
• Installed the PI into the chamber. The PI was put on the cone bellows.
• Checked the dimensions around the BF in the cross tube.

9th(Fri)

• Hung the filter chain from the TF.

Plan for coming weeks

• Set the PI in the chamber (Cabling, ACC).
• Set the BF damper in the cross tube.

Type B (Mark)

Past week report

Plan for coming weeks

Type-Bp (Shoda)

Past week report

• Preparation for PR2 installation.
  • Traverser was aligned on the top plate, and moved out of the clean booth.
  • RM was assembled except for the front ring.
  • Assembly frame was set.
    • Hanging frame was not properly set on the assembly frame. we rotated the hanging frame by 180 degrees, and re-set some parts properly.
  • BF LVDTs were assembled and calibrated.
• PRM IM assembly
  • PEEK parts (F00003: support upper mass) are missing though we found them on 1/11/2017...
  • The picomotors at IOO cannot be used for IM because the length is different.
  • The IM was partially assembled and put in the plastic box with un-assembled parts and screws.
• PR2 gluing
  • All the PR2 flags were removed last weekend.
  • Gluing is on going at Kashiwa.

Plan for coming weeks

• Hang the mirror and RM.

IMMT (Ohishi)

Past week report

• Took inventor stage1 lecture from 5th-7th June.

• Removed IMMT1 from its chamberklog.

• Magnet fixture jig Drawings will be fixed today.

Plan for coming weeks

• Remove IMMT2 mirror from its suspension.
• Cabling inside the vacuum chamber.
• Machining of magnet fixture jig will start.

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).-->Ongoing.

• Examination of experimental preamplifier circuit fabrication. -->Ongoing.

Plan for coming weeks

• Creation of extended I/O PCB(plot type (With the Main 4ch WDS box and I/O box,I/O board For relay).-->Ongoing.

• Examination of experimental preamplifier circuit fabrication. -->Ongoing.

Other site works

• Preparation for the power outage by 6/16
• Preparation for the PR floor re-work by 6/16

Safety

• Incidents:
• Foreseen risks
  • Type-A:
  • Type-B:
  • Type-Bp:

Discussion

Travel Plans

* Travel (Week of 6/12):

• Takahashi: 12-16
• Shoda: 12-16
• Mark: 12-16
• Fabian: 12-16
• Okutomi: 12-16
• Fujii:
• Ishizaki: CAD work in Mitaka
• Hirata: 12-16
• Sato: 12-16
• Enzo: 12-16
• Ohishi:
• Tanaka:
• Akiyama(Hosei): 13-16
• Hashimoto(Hosei): 12-15

• Travel (Week of 6/19):
  • Takahashi:
  • Shoda:
  • Mark:
  • Fabian:
  • Okutomi:
  • Fujii:
  • Ishizaki:
  • Hirata:
  • Sato:
  • Enzo:
  • Ohishi:
  • Tanaka:
  • Akiyama(Hosei):
  • Hashimoto(Hosei):

Next meeting

On 2017/6/16(Fri) Next F2F: 6/30(Fri)