IOO meeting 2019 0708

Connection

Zoom2: https://zoom.us/j/6676627462

Participants

Ohkawa, Miyazaki, Somiya, Uehara, Guiguo, Kokeyama, Aso

Announcements

• The deadline of the registration for the F2F is 7th Aug. Make sure you have registered.
• If you are planning to work in KAGRA especially in the PSL, you need to attend the commissioning meeting at 1 PM on the day before and on that day.

Conferences

• August F2F meeting, Toyama, 8/22-24
  • Oral : Overview (Nakano, 5 min), OMC (Somiya, 15 min)
  • Poster : Niigata Univ.

Recent Status

PSL

• Permission at 1 PM commissioning meeting is needed for an entry.

IMC

OMC, OMMT, OSTM

• OMC commissioning is on going.
  • The wedge of OMC1 is flipped.
  • Somiya-san simulated the TRANS signal during the cavity scan with the speed in the Kasuya-san's measurement, and it indicates the estimated finesse (400) might be a correct number.
  • Modification plan is fixed.
    • Fabrication of the new jig for the alignment
    • Fabrication of the jig for the mirror gluing.

    • OBS3 will be replaced with the curved mirror with ROC of 500 mm. -> It seems to take a long to purchase.

    • The beam does not hit on QPD2. Some modification is needed. (Akutsu-san)
• OSTM replacement

Niigata

• Double demodulation
  • First Koyama-kun will discuss with Michimura-san, and then start the experiment in Kamioka.
    • Michimura-san gave several documents about d-demod.
    • The discussion date has not been fixed yet.
• Scattering measurement
  • Tsugai-kun and Murakami-kun is working to improve the S/N ratio of the measurement, and they will have a poster at F2F meeting.

Visitor

• Rana from LIGO ~2 weeks in Sep.
• Jenny from LIGO ~ 1month in Sep.
• Anamaria from LIGO ?? in Nov.?

Travel

• Nakano to LLO ~2 weeks in Oct.

Meeting schedule

• 9/2 (Mon.)
• 10/7 (Mon.)
• 11/5 (Tue.)?
• 12/2 (Mon.)