[Nakano, Enomoto]

Today we changed the height of the laser beam so that the height is same as that of PMC (4 inches height), since the beam height had been lower by ~ 5 mm.
To adjust the height, we re-mounted all the optics installed already including the laser and the FI.

= Current status =
-- the transmissivity of the FI is 89%, which is same as before. --> OK
-- the current beam profile can be found in the attached figure. --> need to move the lenses
Since we cannot put the optics back perfectly where they are, this kind of change of the profile could happen reasonably.
According to the result we got, we will move a lens (named as Lb) by -30 mm tomorrow.