Miyoki, Hayakawa, Tsuchiya(NihonBoushin), Nakano(NohonBoushin)
The MCE-Trans optical cover preparation ws partially done. The parts for MCE-trans were put on a Seiden F seat after wiped in the MCF side area in the MCE clean booth.
On the other hand, the MCF-REFL optical table parts were stocked in the pre-room in the center area with wrapping.
Nihon Boshin people + K. Tanaka, C. Hirose, Akutsu
Staffs from Nihon Boshin continued the construction of the cover for the MCE_TRANS and finished.
By the way, we found a mistery on the GigE camera during the cable getting back...
After today's installation of the Windshield (WS), We measured the spectra of the signals of K1: IMC-MCE_TRANS_QPDA{1,2}_DC_SEG{1,2,3,4}_IN1 in order to check the effect of the WS. Fig 1 shows the result. Solid lines show the spectra with WS and Dash lines show the spectra without WS. Sadly, there seem to be no changes before and after the windshield was installed...
Now, We are not sure why. (Is the FFU at the top of the windshield allowing air to pass through?)
[2021.06.11]
Sorry, very late report.
I covered the FFU part on the top of the MCe cover with aluminum foil (Fig. 1), hoping that it would lower the noise of the air turbulence. In conclusion, unfortunately, there was no particular improvement...(Fig.2)
The other thing we can do is to turn off the FFU in the MCE booth.
