[Takahashi-san, Tanioka]
We did vacuum test of cryostat at ATC using scroll pump and turbo pump.
The procedure was as follows:
So it seems that there is no huge leakage, which was good thing.
However, after a few minutes turbo pump run, the scroll pump was turned off for some reasons.
Unfortunately I could not see what happened since I went to bathroom.
We tried to recover, but the scroll pump did not work even the power indicator did not iluminate...
One possibility is that fuse blown.
We will investigate.