Tamaki, Nakagaki, mTakahashi, Uchiyama
We reinstalled 16 windows which were removed before.
https://klog.icrr.u-tokyo.ac.jp/osl/?r=28976
Before the installation, Uchiyama inspected the windows used on the +Y side in EXC.
I found scratches on the window for MN_in+X+Y and MN_out-X+Y.
*TM_out+X+Y: The front side was thin stains. I cleaned the window.
*TM_in+X+Y: both sides were clean. I cleaned the window.
*PF_out+X+Y: The front side was thin stains. I cleaned the window.
*PF_in+X+Y: both sides were clean. I cleaned the window.
*MN_out+X+Y: both sides were clean. There was a point-like dirt on the back side of the window. I cleaned the window.
*MN_in+X+Y: both sides were clean. There is a line-like scratch on the front side. There is a point-like scratch on the backside. I cleaned the window except for the scratches.
*MN_out-X+Y: both sides were clean. There are point-like scratches on both sides. I cleaned the window except for the scratches.
*MN_in-X+Y: both sides were clean. I cleaned the window.
4 windows were not used for optical levers. We removed them.
The positions of the windows are followings.
TM_out-X+Y, TM_out-X-Y, PF_out-X+Y, PF_out+X+Y.
