LIGO Document T1300861-v1

Seismic Isolation and Suspension System Instrument Characterization for Advanced LIGO Commissioning

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T - Technical notes
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Reaching the intended sensitivity and astrophysical reach of the Laser Interferometer Gravitational-Wave Observatory (LIGO) will require significant effort in characterizing environmental and detector subsystem noise. Identifying the creation and propagation of non-Gaussian ‘glitches’ will aid on-site commissioners in fixing instrumentation problems and achieving nominal equipment performance. We focus on the installed seismic isolation (SEI) and suspension (SUS) subsystems and leverage existing event trigger generators (ETGs) to develop statistical analyses of glitch behavior. We create novel visualization tools for investigative work and detail the nature of glitches originating from the inner stages of the SEI and SUS subsystems.
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