Simon, Hasegawa, Miyo, Akutsu on 26th Jan 2018:

Set up a laser marker with a tripod legs in the cryostat (Fig 3) and roughly checked the relative position of the WAB's nominal position and the duct; seems nice so far. There is a marker scratch at the aperture of the duct in the direction of 3 o'clock (Fig 1), and I believe this is a marker to show the level of the main beam (need to be confirmed later), is overlapped with the laser markers's laser beam which also  put a line to connect two screw holes for oplev of the WAB (Fig 2).

Then we confirmed that the relative postions of the WAB and the duct aperture were well enought, we moved the WAB suspension to the position for its saving mode (what is the best English name...?). I hope cryo group members and commissioning members have a look to how it seems (Figs. 4, 5, 6, 7 ).

Issues and discussion are described here.