<> = Agenda/Minutes = [[https://zoom.us/j/203743987|Zoom Meeting]] ---------- = CRY+VIS Interface Meeting = Date: 2022/8/19 13:00-13:20 Participants: Takahashi, Uchiyama, Yokozawa, Miyoki, Tomaru, Ushiba, Akutsu, Hirata, Yasui, Ikeda, Node [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Upgrades/PostO3Upgrades|Post O3 Upgrade portal]] == Schedule == * Type-A: Offload of BF GAS in IY. * Type-B: Polarity Check of magnets. Investigation of F1 damper. Recovery of geophone signals in SR2/SRM. Preparation for [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14305|Review]]. * Type-Bp: Oplev rearrangement in PR3. Taking 360deg pictures inside the chambers in the next week. * Type-C: == Status == * Replacement of cables: EXT and IY/EX remain. * TM height setting: Type-B in the next week. * Oplev: Check of the beam pass in the next week. * ACC: * Commissioning in air: * Commissioning in vacuum: IR beam came to the AS port. * Acceptance check: [[https://paper.dropbox.com/folder/show/AcceptanceTest-e.1gg8YzoPEhbTkrhvQwJ2zzo3dHVh5sJGieDgbm2n3h60mGqotBeE|DropboxPaper]] * New vacuum pumps: Side hatch in SRM on 8/23. * Heater control: Pending. * TMS: Replacement of pressure gauge in EX. == Discussion == ---------- = VIS Meeting = Date: 2022/8/19 14:00-14:15 Participants: Takahashi, Fabian, Tanaka, Aso == Summary Report == === Type-A === * Offloaded the BF GAS in IY. === Type-B === * I posted plots comparing BS and SR2 TFs calculated with the Matlab rigid-body model. See [[ https://klog.icrr.u-tokyo.ac.jp/osl/?r=21813 | klog 21813]] * Review at 15:00 on 19th. === Type-Bp === === Type-C === === Electronics === === Control === == Schedule == * Type-A: * Type-B: Height check. Rubbing check. Adjustment of F1 damper in BS/SR2. Adjustment of F0 FR in BS. Oplev check (various). * Type-Bp: * Type-C: == Safety == == Discussion == * How to set the F0 FR in BS? The present temperature is 23.5. Though we can use the heater on the chamber later, we should keep a margine of the cooling power. 23.2 is optimal? == Travel Plans == (Date in Kamioka) The week from 8/22 * Takahashi: 8/22-26 * Sato: 8/22-26 * Hirata: 8/22-26 The week from 8/29 * Takahashi: * Sato: * Hirata: == Next meeting == * 2022/8/26(FRI)