= 20180314 =
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4458]]
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4448]]
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4451]]
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4456]]


== Today's activities ==
Workers: Miyo, Akutsu
 * In the morning (around 9:44 JST), set calibration factors to the oplev model based on the [[http://klog.icrr.u-tokyo.ac.jp/osl/index.php?r=4090|Miyo-kun's report]] on Feb 1 2018.
  * The method is reported [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4458|here]].
  * Pitch: (was) 1100 -> (is) 75.75
  * Yas: (was) 1000 -> (is) 83.33
 * TCam's illuminator seems to put spike noises every 10 minutes; see [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4451|here]].
  * Actually Akutsu tried to take long-term spectra of the local sensors but some averaged results showed sudden wide-spectral bump and seemed spike noise.
  * Are Asking CAL to reduce the illumination timing ratio.
 * IYC pumping down started by Kimura-san; see [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4448|here]]
  * The effects are reported [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4451|here]].
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4456|Some comments]].
 * '''[Ongoing]''' Need cares of water springs from anchor bolts for oplev pylons.
 * '''[Ongoing]''' Need to confirm what are the scratch lines made by the measurement by the KEK team last week.

== Next plan ==
 * Check the balance of the suspended WAB with some wires and sensors are attached.
 * Check how the damping would be now after the replacement of the damping magnets.
 * Check the reproducibility of the alignment of the suspension among several modes.  
 * Check heights of several points.
 * Take care of water spring??

== Wanted! ==
 * Good '''''rail(?)''''' to move the WAB suspension in the cryostat in the main beam direction.
 * '''''Chain block?''''' to support the load in the chamber.