iKAGRA PR2 alignment & Beam Profile Measurements

Date: 2016/3/3

Workers: Aso, Michimura, Ushiba, Kuwahara, Okutomi, Furuhata

Enter the tunnel, check necessary tools
Setup KOACH filters near the PR3 chamber
Setup KOACH filters near the PR2 chamber
Open the flange of PR3 (on the +X side)
Open the flange of PR2 (both -X and +X sides)
Lock the MC and send the beam from IMMT2 to PR2 with low power (<2mW)
Center the beam on PR2 using IMMT2 picomotors
Center the beam on PR3 using PR3 picomotors
If the beam on PR3 is too dim and difficult to align
- Declare the laser hazard area. Distribute laser goggles to people in the center area
- Increase the power from MC (to 25mW or so)
Measure the beam profile in front of PR2 using the middle size beam profiler
Measure the beam profile in front of PR3 using the large beam profiler
Stop the beam from MC
Declare the finish of the laser hazard
Close the flanges
Cleaning around the chambers
Stop KOACH filters

Middle size beam profiler (Found one near the MCF clean booth. Check with Doi-san)
- A stand to hold it at the right height
Large size beam profiler (Doi-san's room)
- A height adjustable table (Found two of them near the PR3 on +Y side)
Two PHS phones for communication between PR and BS area clean booths (or transceivers)
Two sets of floor KOACH
Clean suits and inner ware
- Chamber compatible type
- Found many L and M in the laser room. For other size, we need to bring them from the data analysis building.
A wrench to turn the bolts for the flanges (in the red tool cabinet near PR2 clean booth)
A PC (or two) for controlling the picomotor (will use one of the DGS mac books)
- Prepare a joypad as a backup (Found one in the PR2 clean booth)
A lot of laser goggles (In a cardboard box near the entrance to PR3 clean booth)
Sensor cards (check with IOO people)
IR viewer (Found two near the MCF chamber. Check with IOO people)