Agenda/Minutes of the VIS Meeting on 2020/8/19
2020/8/19 14:00 -
- Started procurements of LVDT coils for ACCs.
BS IP position and outer frame beams: During the review of the Type-B remedying work I began thinking about the effects of the installation of the BS outer frame beams: installation will likely change the position of the upper platform which supports the IP, thus changing the position of the IP also. I've asked Uchiyama-san if we could measure the frame upper platform displacement using dial gauges. If so we could compensate by setting a new appropriate set point for the IP.
Oplev box and outer frame beams: I've asked to Akutsu-san about the oplev box status. I haven't received an answer yet. Very likely we will need to completely remove the oplev optics to install the box. The installation of the BS outer frame beams will likely require removal of the oplev reeiver optics.
Question for Satou-san: Have we bought that cables requested for the yaw stepper motor? They were requested on 06/03/2020 meeting.
- KAGRA is in "Upgrade phase for O4".
- Procedure documents.
Schedule towards O4 was revised (Chart).
- [Terrence] New features for the suspensions, type-A and type-B, as pre-O4 upgrades.
- On 2020/8/28(Fri)