KAGRA MIR (Polarization)
MarcEisenmann - 23:27, Thursday 13 February 2025 (3906)
restart of birefringence measurements

[Marc, Michael Miller]

Had to change COM of Zaber from 6 to 7.

We installed the 2 blades on translation stage.

Vertical cut at : 310 80 20

Horizontal al cut at : 380 140 20

last mirror is at 175 mm from blade when the blade is at 20mm.

MAX DC = 0.25V

After realignment, we reached about 0.07deg AOI for both vertical and horizontal direction.

The beam size is about 0.9mm for both vertical and horizontal direction across the longitudinal range of the translation stage.

All measurements and analysis files are saved on the online MATLAB as we have some issues with MATLAB license. To be reinstalled.