• KAGRA
• Recovery2024
• IXC

IXC Recovery(20240407)

• Suspension health check (Takahashi, Ushiba)
  • A01: Cable check

    • Recovery of BF damper: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28613, https://klog.icrr.u-tokyo.ac.jp/osl/?r=28541

  • A02 Porality Check

    • -> Judge in TF measurement

  • A03 Rubbing Check

    • -> Judge in TF measurement

  • A04: Range and Calibration
  • A05: Watchdog Setting: Skip
  • A06: Height Measurement

    • Done: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29013

  • A08: Calibration:skip

  • A09: Spectrum

    • ITMX tower sensor: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29122,

    • IM/MN photosensors: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29121,

  • A10: Transfer Function

    • ITMX: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29111

• Oplev Check (Yokozawa, Akutsu)

  • MN: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29074

• Green flash at REFL and Trans PD
• Windows Cleaning

  • Done: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28788

• Tcam (Yokozawa and ChenDan, and Yamamoto)
• Baffle PDs (Yokozawa and his selected persons):
• NAB, WAB (Akutsu)

  • WAB: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28851

  • NAB: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28798

• Vacuum system (Kimura-san / Uchiyama-kun and their selected persons)
  • tie rod adjustment between EXC and TMSX to avoid stress when the only EXC side is pumped down.
  • Nasty air parts were replaced.
  • Vacuum alert recovery after pumping down.
  • GV interlock will be tried after pumping down.
  • The broken cc-10 was replaced.
  • N2 purge is necessary for EXV.
• Cryo-system (Kimura-san and his selected persons)
  • All temp signals are obtained?
  • Connector change is required for the heat link suspensions.
  • Cryocon alert to slack after cooling.
  • No interlock for TMP around the Cryostat.