27th-28th May,

Takahashi-san, Mark-san, Ishizaki-san, and Ohishi changed MCE breadboard.

Due to the unexpected stack cleaning work, surface level adjustment of the MCE board was postponed to 11th-12th Jun.

Inside the cleanbooth, humidity was  - 80% but cleanness was good -ISO class 4.

Optical bench was carried into the booth.

Attached pictures were taken by Koichiro (an Olympus camera equipped to NAOJ Kamioka branch).