[Takahashi, Sato, Okutomi]

We did preparation works at the EXV room in this week to start the Type-A installation.

What we did:
Jan. 24 (Tue.)

• Derivered parts inspection => Devided into groups for Xend, Yend and Type-Bp
  • Ballast masses for Pre-Isolator
  • Parts for the Bottom Filter dampers
• Transportation of the parts to Yend

Jan. 25 (Wed.) (photos: https://goo.gl/photos/iiy1fThTuwQcyC9h6)

• Installation of the stainless plates on the foolr of EXV clean booth
  • We use aluminum tapes to fix the plates each other or to the floor.
  • Some plates are not fixed yet because of shotage of the alminum tape.

Jan. 26 (Thu.) (photos: https://goo.gl/photos/aGkBs7kvoab17HYn8)

• Installation of high footholds and shelves
  • The shelves are one steel rack and one metal cart which are moved from the EXA clean booth  

Jan. 27 (Fri.) (photos: https://goo.gl/photos/Y8HrojN2S7wddism9)

• Installation of low footholds

Sorry for posting a gathered report of days in this week.
We wiped the footholds and shelves but we can see much fibrous dust from the wipers remains on sharp edges or joints with rough surface.
So I feel necessity of air-blowing them before use or opening the chamber.
Air-blowing system will be ready in next week.