KAGRA/Recovery2024/IXC

IXC Recovery(20240409)

Suspension health check (Takahashi, Ushiba)
- A01: Cable check
  - Remeasure the adjusted cables.
  - Recovery of BF damper: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28613, https://klog.icrr.u-tokyo.ac.jp/osl/?r=28541, https://klog.icrr.u-tokyo.ac.jp/osl/?r=28862
- A02 Porality Check
  - -> Judge in TF measurement
  - magnets: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28632
- 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
  - EQ stopper: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29040
  - Roll Adj: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28959
Oplev Check (Yokozawa, Akutsu)
- MN: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29074
- TM: check between closing SI.
Windows Cleaning
- Done: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28788,
Tcam (Yokozawa and ChenDan, and Yamamoto)
- Done: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28830
Green flash at REFL and Trans PD
Baffle PDs (Yokozawa and his selected persons):
- not necessary
- one photodetector was dead.
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
- IXA closing: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28887
Vacuum system (Kimura-san / Uchiyama-kun and their selected persons)
- Nasty air parts were replaced.
- Vacuum alert recovery after pumping down.
- GV interlock will be tried after pumping down.
- N2 purge is necessary for IXV.
Cryo-system (Kimura-san and his selected persons)
- All temp signals are obtained?
- Cryocon alert to slack after cooling.
- No interlock for TMP around the Cryostat.