= 20180220 = * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4231]] * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4232]] * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4233]] == Today's activities == Workers: Simon, Miyo, Akutsu * Continued to calibrate the photosensors; see [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=4231|here]]. * '''''Potential issue''''': About PS-2 in the above link, PDs were got unexpected voltage and currents (1.5V, 60mA according to Miyo-kun; meaing 30mA tp each PD). Not sure this could be related to the different shape of the calibration factor measurement. No idea. * '''[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 == * Calibrate the PS. * Connect heat links and the heat link anchor block. * Complete the calibration of the oplev; the arm length was reported by Simon, so.... * 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! == * Two burndy connectors, vacuum compatible. * '''''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.