[Washimi, Tomaru, Kimura, M.Takahashi, Sawada, R.Takahashi]
We opened the X+ side hatch and the top belljar. We could not find any dirty items inside the chamber. Pictures are here.
We removed the geophone pods. The weight of each pod was 12.6kg. After closing the chamber, we measured the IP transfer functions. The resonant frequencies became 0.16Hz for L and T, and 0.4Hz for Y.
[Ikeda, Sawada, Kimura, Takahashi]
We checked the leak of the geophone pods. First, the background level of the test chamber, which was taken from the CLIO site, was measured by the He leak detector. The level was smaller than the detectable limit, 1.0e-13 Pa ‣m^3 /s. After that, we measured the leak level of the H1, H2, and H3 geophoen pods one by one. In any case, the leak level was smaller than the limit.
