LIGO Document T2200149-v1

Test mass surface profiles for optical simulations

Document #:
LIGO-T2200149-v1
Document type:
T - Technical notes
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Abstract:
Each of the LIGO test masses have been profiled using a Zygo interferometer and the data is stored in various DCC entries. This document contains these surface profiles that have been processed so that they can be used in interferometer simulation tools, such as FINESSE, or SIS. The processing removes any residual tilt and piston terms (weighted for 53mm on the ITMs and 62mm on the ETMs).

Each HDF5 file contains the x and y coordinate datasets and an A dataset which contains the surface shape in meters.

Only those mirrors that are installed are included here. It is possible to regenerate these files using the python script process_maps.py in this document and the FINESSE 3.0 package.

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