=== 2019/5/29(Wed.) === ==== Schedule ==== * --(5/22-23: MZ release from PSL)-- * --(5/20-24: Exchanging cryo valves.)-- * 5/27-6/2: Y arm mass lock. * 5/29: RT PC maintenance -> go to safe mode for all VIS connected Dolphin (specially BS) * 6/3-6/14: Installation of TMS for ETMY * 6/8: Engineering run * ITMX * --(5/22AM~: tuned off cryostat cooler, finesse measurement for Xarm)-- * --(5/22AM~: tuned off shield cooler, finesse measurement for Xarm)-- * ETMX * --(5/2: Cooling start)-- * ITMY * --(5/23AM~: tuned off cryostat cooler, finesse measurement for Yarm)-- * ETMY * --(5/17~: tuned off ETMY cryostat cooler)-- * Long term: * 4/22-5/31: Yarm commissioning * 5/27-6/30: DRMI commissioning * 7/1-8/9: DRFPMI commissioning * 8/12-10/4: DRFPMI ASC * 10/7-11/15: Post Commissioning * 11/18-12/13: Noise hunting ==== Note ==== ==== Night work ==== ==== Weekend ==== ==== Report of work ==== * COM: GR for X arm was locked again. The problem was that the shutter of GR was half closed since last Wednesday. * Some resonances of 3.6H and 5.1Hz were excited when length control signal was injected to hierarchy control point. * CRY: ITMY reached 29K. * TYPE A: Measurement of TF for Type A is going on from this morning. ==== Work plan ==== * DGS: Maintenance for replacing k1lsc0. * COM: Finesse measurement for y arm with low temperature. Contamination can happen with low temperature. * Type B: Smooth watch dog will be implemented into some Type Bs in the maintenance time. * IOO: Laser safety button will be available this afternoon. * VIS: Status monitor for VIS will show up in the control room.