bKAGRA Calibration Tasks and people

• Commissioning schedule from JGW-T1605595

Phase1 (before the deadline: Mar/2017)

Before ETMY CRYp installation

• CAL Task: Lab test on the CRYp actuators

• People: Miyamoto, Ushiba, Inoue, Tomaru +CRY

2017.10.31 ETMY CRYp installed

• Return the beam from ETMY to BS

• CAL Task: What we can do for the calibration with a single arm ?

2017.11.22- ETMY evacuation

2017.12.8 cool down starts

• CAL Task: ETMY monitoring with HR-camera

• People: Inoue, Haino +CRY

2018.2.2 ETMX CRYp installed

• Return the beam from ETMX to BS
• Lock room temperature Michelson
• CAL Tasks:

• Measurement of optical efficiency

• Measurement of open-loop transfer function

• Implementation of online h(t) generator

• People: Yamamoto, Ushiba, Inoue, Haino, Kokeyama, Michimura +MIF,DGS

2018.2.13- ETMX evacuation

2018.3.2 cool down starts

• CAL Tasks:

• Monitor of actuator efficiency during cool down

• ETMX monitoring with HR-camera

• People: Miyamoto, Ushiba, Inoue, Haino, Tomaru +CRY

By 2018.3.31 Start observation run with 3-km cryogenic Michelson

• CAL Tasks:

• Measurement and evaluation of time variation of optical and actuator efficiencies

• In which frequency we should excite the calibration lines ?

• People: Yamamoto, Miyamoto, Ushiba, Inoue, Haino, Kokeyama, Michimura +MIF,DGS subgroups

Phase1 (after the deadline: Mar/2017)

• Shorten PR2-PR3 length by 2.4 cm (at max)
• Re-alignment
• connect remaining bellows/ducts and evacuate central area
• Lock cryogenic PRMI

• Cal Tasks: Redo the calibration

• Measurement of optical efficiency

• Measurement of open-loop transfer function

• People: Yamamoto, Ushiba, Inoue, Haino, Kokeyama, Michimura +MIF,DGS