20180201

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.
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 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.

Set up oplev to 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.
Connect burndy pins to the heaters??
Check heights of several points.
Wash the coil in ethanol at Univ. of Toyama...?
Take care of water spring??

A tweezer.
An ND filter for the oplev beam.
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.
Cutters and scissors!!
A clock to know the time easily.
A fiber cleaner to connect oplev source parts; need to get back from Yend.
M6 screw set.