== 2019/3/11 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)-- * --(3/6 PR3: range -> incline by 20-30mrad at mirror because of bistable.)-- * 3/4-8 PRM: Misalignment does not reach where beam hits damper. * ~3/15 BS: Yaw offset adjustment by hand. -> 3/5-6 * --(3/5 afternoon or 3/6 morning: Coolers for ITMs will be stopped for 2-3 hours to change water.)-- * 3/18-19: Re-alignment * 3/19: Closing * 3/20: pump down * 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)-- * --(3/7,8: leak test)-- * 3/27: Cooling start * 4/23: Cooling done * 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, 18,19: Xend WAB finalization. * 3/11~3/15: ETMX tuning. * 3/19: Heatlink etc. * 3/19: ETMX finalization by Takahashi * 3/18,19: ETMX alignement * 3/21 closing * 3/22 Pumping down * Leak test * 4/1: Cooling start * 4/28: Cooling done * 3/18~ : 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)-- * 3/25~?: DRMI commissioning * 3/25-5/?: Y arm commissioning * 5/?-?/?: FPMI commissioning ---- === Discussion === * Schedule estimation for commissioning. * Necessary term for each task: * Y arm lock with green light: 1week * TF measurement for hierarchy control: 2-4weeks, depending on fluctuation of mass * Type A payload matrix diagonalize: 2-4weeks, after cooling down * Y arm lock with mass feedback: 1week * X arm lock with green light: 1week * FPMI lock: 1week * Example1: * 3/20-3/27: ETMY TF measurement for hierarchy control 1. * 3/27: ETMY cooling start * 4/23: ETMY cooling done * 4/22-5/10: ETMY TF measurement for hierarchy control 2. * 4/25-5/17: ETMY payload matrix diagonalize * 5/7-5/10: Y arm lock with green light * 5/20-5/24 Y arm lock with mass feedback to ETMY * 4/1: ETMX cooling start * 4/28: ETMX cooling done * 4/29-5/10 X arm lock with green light * 5/27-31: FPMI lock * when both ends are not available: DRMI lock acquisition. It will be done by 5/31 * 6/3~ DRFPMI lock acquisition * Example2: Needs ETMI tuning after FPMI commissioning * 3/25-3/29: Y arm lock with green light * 4/1: ETMY cooling start * 4/26: 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 * 4/1: ETMX cooling start * 4/28: ETMX 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 done by 5/17 * 5/20~ DRFPMI lock acquisition * Pcal finalization (Inoue) * Circuit measurement plan (Haino) ----