= Minute of KAGRA commissioning meeting = ---- * Date: 2018/3/27 11AM~12PM * Attendance: Miyakawa, Uchiyama, Yamamoto, Ohashi, Miyoki * eZuce: Kimura, Suzuki, Yokozawa, Inoue, Shoda, Ushiba, Tomaru ----- == 1. Report of work of the last week and plan of work == * Alignment, ETMY: Izumi * Mirror motion has been suppressed to ~2urad. Requirement is 1urad. * Beam is checked almost every night. * MIF: Izumi * k1bs, k1imc will be connected by Dolphin. ETMs are connected to k1imc by RFM. * CAL: Yamamoto, Yokozawa * Started using IMC as training of calibration. * Simple calibration will be implemented. * X end PD is removed at 3/27 today. * ETMX: * Connection between Type A and Cryopayload is done. Cabling is done. * Height somehow changed from the last week to this week. We are fixing it, but it seems to change daily. * Alignment will be roughly adjusted today, and first contact will be removed today. * Circuits and connection to digital system are done. We started matrix tuning. * Viewport of Oplev is missing. It will be placed the next, but we need indium. == 2. ETMX pump-down == * See the check list. == 3. Operation == * Please reply accommodation mail from Uchiyama-san. * Think for emergency. == 4. Tasks or discussions == * Selection of full channel -> DGS Yamamoto * Selection of science channel -> Commissioning Izumi * Screens at control room * Sensitivity. * PEM. * Needs laser safety information. * GW alert: online alert in the control room might be prepared. -> Togoshi * Frequency noise can be measured by middle lock. Large intensity noise can be a problem. == Others == * Next meeting: 4/3