Agenda/Minutes of the VIS Meeting on 2019/11/1

2019/11/1 14:00 -

Zoom Meeting

Participants:

VIS Commissioning Task List

Post-O3 task list

Progress report

Type-A

Past week report

Plan for coming weeks

Type B

Past week report

There were no activities in Type B this week because the suspensions were not available.

Plan for coming weeks

Diagonalization of the ASC degrees of freedom for SRM and other SR suspensions if available.

Type-Bp

Past week report

• Kokeyama-san reported that the orientation of the mirror was incorrent in MISALIGNED state: the beam was not going into the beam dump and the beam was not going onto the PSD (see klog entry 11260 and links thereir):

  • Against our expectations the beam goes ontt the PSD in ALIGNED state.
  • In such a state in order to misalign the mirror actuation was applied to test channels BF yaw, IM yaw and IM pitch and the output of the oplev DC control were frozen.
  • I found a new set of suitable offsets. See klog entry .
  • Fortunatelly in the new appropriate orientation the IM is closer to the SAFE, so nothing is expected to be touching.
  • Yamamoto-kun and I created a snapshot file for the MISALIGNED state usind the SDF and updated the new values.

Plan for coming weeks

OMMT & OSTM (Takahashi)

Past week report

• M2052 bars for OMC are under ECB process.

Plan for coming weeks

• Assembly and test of the OSTM suspension.
• The mirror will be ready with the first contact.

VIS electronics

Past week report

Plan for coming weeks

Other site works

Safety

• Incidents:

Discussion

• Time slots in the next F2F meeting: Request two slots (commissioning by Okutomi and future plan by Takahashi)

Travel Plans

• Travel (Week of 11/4):
  • Takahashi: 5-7
  • Sato: 5-7
  • Hirata:
  • Shoda:
  • Fujii:
  • Tanaka:
• Travel (Week of 11/11):
  • Takahashi:
  • Sato:
  • Hirata:
  • Shoda:
  • Fujii:
  • Tanaka:

Next meeting

On 2019/11/8(Fri)