Date: 2024/4/4

With Shingo

We cleaned the inside of EXA.

Procedure:

1. Used a vacuum cleaner for vacuum tanks
2. Wiped with Vectra Alpha and Ethanol

Areas cleaned:

1. The structures supporting NAB and Pcal mirrors
2. The wall of EXA chamber
3. The optical tabel

As far as our hands and the vacuum cleaner can reach, we cleaned.