KAGRA/IFOInt------
[[ IMC recovery(20240322) | ]]
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 * Suspensions(R.Takahashi)
  * Mechanical Motion
   * Smooth pico motion and its default position
    * MCi/o: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28907 -> --(A.I. upload pitch pico pictures (R.Takahashi), or taking picture for pitch pico.)-- -> https://klog.icrr.u-tokyo.ac.jp/osl/?r=28941
    * MCe: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28909 -> --(A.I. upload pitch, yaw pico pictures (R.Takahashi), or taking picture for pitch, yaw pico.)-- -> https://klog.icrr.u-tokyo.ac.jp/osl/?r=28941
   * Gaps between magnets and coils -> MCo upper is the minimum, but this is the best effort.
   * Gaps between EQ stoppers and mirrors -> confirmed less than 1mm.
    * MCe: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28915
    * MCi/o: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28913
  * Electrical wirings
   * Coil resistances and inductances -> A.I. Inductances should refer the past data if the coil did not change, or it will be measured again  (Wasimi, 3/24(Monday morning)
    * MCo: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28668 -> A.I. MCo H4 looks high, it could be disconnection. It should be measured again (Wasimi, 3/24(Monday morning).
    *MCi/e: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28696 -> One of the MCi resistances is low, but low may have no problem. If it is high, it may have some disconnection.
   * Isolation of Wiring from coils to flanges(pico and mag-coil) -> MCi could not be accessed.
    * MCo: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28911 -> improved
    * MCe: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28910 -> improved
    * POM: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28914 -> This does not matter for the suspension.
   * Fixing on tables is tight and reliable? 
  * Smooth Mag-coil motion and balance and TFs
   * balance can be adjusted after closing?
   * MCi: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28938
   * MCo: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28939
   * MCe: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28940 -> A.I. Peak of pitch-shifted to higher frequency from the result of Feb.2. Needs remote centering for the Oplev first (Ushiba). 

 * Mirror conditions(Y.Aso)
  * Clean around the center?
   * MCe has a spot near the center. But its influence is expected to be small.
   * Inspection: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28856

 * Alignment(T.Akutsu, T.Ushiba, T.Yokozawa)
  * TEM00 flashing
   * https://klog.icrr.u-tokyo.ac.jp/osl/?r=28912
  * The IMC trans beam is the same as before?
   * https://klog.icrr.u-tokyo.ac.jp/osl/?r=28779
   * https://klog.icrr.u-tokyo.ac.jp/osl/?r=28839
   * https://klog.icrr.u-tokyo.ac.jp/osl/?r=28937
  * Beam positions on each mirror
   * They should be the same because the IMC trans was recovered in MCio?
   * How about on MCe? MCE tra QPD can be the reference.
  * QPD path and centering
  * Gaps between magnets and coils again 
  * IP1/2 dynamic range check for the IMC injection?
  * Beam paths for IMC REFL.

 *Beam dump(T.Akutsu)
  * Beam shield reinstallation
   * https://klog.icrr.u-tokyo.ac.jp/osl/?r=28927
   * https://klog.icrr.u-tokyo.ac.jp/osl/?r=28926
  * Beam dumps were additionally added?
   * In basic, No. Relocation was done.  https://klog.icrr.u-tokyo.ac.jp/osl/?r=28931 -> Inside of beam duct between PSL and iMC looks shining.

 * Vacuum, etc (N.Kimura, T.Uchiyama, S.Miyoki)
  * Cleaning
   * No dust inside, especially on the bottom? -> A.I. before closing.
  * Leak point was fastened tightly? -> A.I. when closing.
   * It will be done when the bellows are attached by Mirapro.
  * MCE trans flange rotation (the past activity is in https://klog.icrr.u-tokyo.ac.jp/osl/?r=28326) -> it will be done on Mon.
  * Lift-up tool check for bellows installation. (past accident https://klog.icrr.u-tokyo.ac.jp/osl/?r=28344)
  * Flange surface check to avoid leaking especially on GV_mcf
  * FFU stop for the MCE/MCREFL optical table and reconstruction of the window shield (MCE, MCF?). -> measurement of length of legs.

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[[ https://paper.dropbox.com/doc/Installation-Acceptance-Document-for-MCF-and-MCE-in-spring-2021--CLlN4mKPlOUb8YO5qXgdLVeBAg-9a7b8tlqCZ2cxodEcJhGY | one of templates for IMC closing by Akutsu-kun in 2021.]]


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Summary
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 * TF of MCe had a shift of peak frequency on the pitch. Ushiba-kun will measure it again with the well-centered oplev. It will be reported at the recovery meeting or later. 
 * All others should be OK for closing IMC chambers.
  * The resistance of the Coil of MCo H4 looked high. Washimi-kun will measure it again on Monday, but it won't stop closing anyway.
  * Washimi-kun will measure inductances again on Monday.
  * Check no dust inside, especially on the bottom before closing.
  * Check the leak points are fastened tightly when closing.