[Tomaru, Uchiyama, Ushiba, Washimi]@Y-end + [Miyoki, Yokozawa]@Ctrl room
Today we did the enviromental noise Hunting at Y-end.
The results are here:
- Turning off for EYA booth FFUs -> No change
- Hammering for this bellows (picture) -> 22-26Hz was excited (plot1, plot2, plot3)
- Hammering for the other ducts&bellows, EYA chamber, EYA chamber's legs, around duct shield coolers -> No change
- Acoustic injection into the TMSY booth -> No change
Due to the unstability of IFO, we could not do the hemmering test for the cryostst.
