= 20180201 =
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4091]]
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4090]]
== Today's activities ==
Workers: Akutsu, Miyo, Hasegawa
 * Continued to attach burndy receptacle pins to the thermometers' wires.
  * Now 6 thermometers have pins; 5 out of 6 thermometers were '''''online''''' by a cryocon; the five were attached to the WAB and the suspension without indium sheet, '''''so don't forget to attach the metals sheets'''''
  * The coat of a red wire of one of the thermometer was adhered to its green wire's coat, and tended to delaminate. Doing some tricky and careful works, this issue was resolved; again, careful visual inspection would be a key to resolve an issue.
 * Attached burndy receptacle pins to two heaters in the chamber
  * The two heaters were connected in parallel; in other words, two wires from different heaters are swaged to a single pin.
  * Tested the heater via the distributor located outside of the clean booth; one person in the chamber touched the heater with gloved hand but did not feel any warming up; with a contact-type handy thermometer, found the rise/drop of the temperature of the heater along with the switch turned on/off.
  * The resistance between W-X from P23 at the distributor box was measured as 32.5 ohm, while a heater is 50 ohm on the specification, and that of the paralleled heates was measured 25 ohm as expected.
 * Set up the oplev; the pylon was rigidly fixed to the floor; an ND filter, borrowed from Kokeyama-san, was put in front of the QPD.
 * Calibrated the QPD of the oplev. See [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4090|here]]; need to do further conversion to urad.
 * '''[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 ==
 * Complete the calibration of the oplev; '''''what is the arm length?'''''
 * 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.  
 * Prepare calibration of photosensors.
 * Check heights of several points.
 * Wash the coil in ethanol at Univ. of Toyama...?
 * Take care of water spring??

== Wanted! ==
 * A tweezer.
 * Two burndy connectors, vacuum compatible.
 * Chairs in the clean booth 
 * Cutters and scissors!!
 * '''''Stages outside the chamber''''' to ease wiping our legs.
 * Good '''''rail(?)''''' to move the WAB suspension in the cryostat in the main beam direction.
 * '''''Chain block?''''' to support the load in the chamber.
 * A clock to know the time easily.
 * M6 screw set.