• KAGRA
• Commissioning
• Weekly
• 20180626
• Minute

Minute of KAGRA commissioning meeting

• Date: 2018/6/26 11AM~12PM
• Attendance: Miyakawa, Yokozawa, Stefan, Nakano, Yamamoto
  • eZuce: Shoda, Ushiba, Hirose, Eleonora, Izumi, Yamamoto(Toyama), Kokeyama, Miyoki

PMC

• Summary of PMC work by Stefan during his stay at KAGRA
  • Two PZT steering mirrors were installed yesterday for input beam to IMC.
  • Calibration to Hz will be done today.
  • Thermal drive is sill missing.
  • Needs fitness, noise budget or something.
  • Probably we do not need to change HV PZT driver by O3, but needs estimation.

• PMC servo modifications -> Stefan

  • http://klog.icrr.u-tokyo.ac.jp/osl/?r=5155

• FSS and PMC locked together -> Nakano, Stefan

  • http://klog.icrr.u-tokyo.ac.jp/osl/?r=5318

• PMC autolocking sped up -> Stefan, Nakano

  • http://klog.icrr.u-tokyo.ac.jp/osl/?r=5320

Others

• Beam height brain storming -> next week?

  • ETMX and ITMX should be located at half low temperature stage and room temperature stage. It means that ~5mm off from the nominal position. Type A can compensate ~5mm.

• Necessary number of High power coil driver -> Aso

• Cable cleaning on BS rack will be done this weekend.
• Next meeting: 7/3.