== 2019/3/26 Weekly commissioning meeting topics == * Assignment of staffs * [[https://teamup.com/kswnmta8p18h6u1uab]] ---- === Schedule === * Center * --(2/26-27: Venting)-- * 2/28-3/15: Health check and maintenance for VIS * --(PRM: One flag was dropped. -> leave it)-- * --(3/4-14 PRM: Misalignment does not reach where beam hits damper.)-- * --(3/6 PR3: range -> incline by 20-30mrad at mirror because of bistable.)-- * --(3/15: BS: Yaw offset adjustment by hand. -> 3/5-6)-- * --(3/12: BS ok)-- * --(3/15: some SRs work)-- * --(3/5 afternoon or 3/6 morning: Coolers for ITMs will be stopped for 2-3 hours to change water.)-- * --(3/18: Re-alignment)-- * --(3/19-21: Closing)-- * --(3/22: Pump down)-- * --(3/25: Venting)-- * 3/27: Fixing PR2 * 4/3: Closing and pump down * ITMX: * --(3/19: Cooling stop)-- * --(3/25: Venting start)-- * 3/27: Opning chamber * 3/27~: Fixing thermal touch * 3/28? ~4/3?: closing chamber and start pumping down. * 4/12: Cooling starts. * Xend * --(2/11-2/14: Xend NAB installation)-- * --(2/21: Removing FC, Payload release)-- * --(2/27: ETMX release)-- * --(2/23-3/6: Xend Pcal finalization 1)-- * --(Periscope installation)-- * --(3/6: Beam position by IR and Green)-- * --(3/5 AOS: EY and EX(if they have time) work.)-- * --(3/6: Green X alignment (no IR), and no hazard at Y end.)-- * --(3/11, ~20: Xend WAB finalization.)-- * --(3/11~3/15: ETMX tuning.)-- * --(3/19: ETMX finalization by Takahashi)-- * --(3/18,19: ETMX alignement)-- * --(3/23-24: Pcal alignment)-- * --(3/24: Removing PD)-- * --(3/25: closing and pump down)-- * 4/12: Cooling start * Yend * --(1/25-2/20: Yend Pcal finalization)-- * --(3/5: EYA remaining works by Enomoto, Inoue.)-- * --(2/25-3/5: Yend WAB finalization)-- * --(3/6: Y end closing (no laser hazard at least in the morning))-- * --(3/7: Y end pump down)-- * --(3/22-23: leak test)-- * --(3/26: Venting start)-- * 3/28~: Fixing short inside chamber * ~4/2: closing chamber and start pumping down. * 4/10: Cooling starts. * 4/1~ : Night work starts, daily meeting will be moved to 1PM * Summary of work will last for a while in the morning meeting. * --(2/18-2/22: PRMI commissioning)-- * End of April~: DRMI commissioning * End of April~: Y arm commissioning * ~End of May: FPMI commissioning ---- === Discussion === * Schedule estimation for commissioning with feedback to ITMY. * 4/10: ETMY cooling start * 5/7: ETMY cooling done * 3/29: ITMY cooling done * 4/1-4/26: ITMY TF measurement for hierarchy control 2. * 4/1-4/26: ITMY payload matrix diagonalize * 5/7-5/10 Y arm lock with mass feedback to ITMY * 4/12: ETMX, ITMX cooling start * 5/9: ETMX, ITMX cooling done * 5/7-5/10 X arm lock with green light * 5/13-17: FPMI lock * when both ends are not available: DRMI lock acquisition. It will be continued after FPMI is locked. * Strategy for TF measurement and payload diagonalization. * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=8454]]: Estimation for L motion of EMTX * There is a possibility that ITMY is not going low temperature. * When should we start daily meeting? * IOO will use iMC before starting Y arm commissioning. * How to avoid troubles? ----