20181009

Today's activities

Workers: Akutsu, Michimura, K. Tanaka (17:30-21:30)

Installed optics for green path from GBS1, except for green QPD boards (See JGW-T1808962 for optical layout)
- we marked screw holes on optical table every 10 holes
- we labeled all the mirror mounts with the part number of the optic
- the position of GST2 was 25mm too far from GLNS1, so we moved it to the default position
- beam seems to be focused at around GST3, as expected
Other things
- Height of Gig-E camera is a bit short
- All the LVDT outputs went close to zero from around 21:26. We didn't notice this until we got back to the control room.

Align and balance the BRT and the TMS-VIS.
Detach the remaining white tapes just before closing the chamber; be noted that there are white tapes on the PEEK connectors at the inside of the flanges.
Torque completely the bolts which are fixing the upper and the lower base plates.
Insert metal gaskets before torquing the ICF203 flanges with Dsub connectors.
Modify MEDM screen
- Add DC PD and so on.
Cable Dsub 15pin for TMS-VIS OpLev.
Modify cabling for DC PD.
Return plastic box.
Install rails in digital rack.
- They may be necessary under LVDT distributor, geophone distributor, and WHT board.
- Nagano is not sure it is necessary under HP coil driver.
Consider how to cable Dsub cables to QPD.
Investigate LVDT outputs
Install QPD boards and do the final cabling
Check why Gig-E camera is not working
Install IR optics

M4-12mm (or longer) screws instead of M4-10mm for fixing mirror holders to 20mm dia. posts
Spacer for Gig-E camera (height is shorter than 4-inch right now)