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Ground Motion. Dynamic imperfections will affect luminosity performance or cost Most imperfections should be site independent Ground motion is not TRC: TESLA loses 15% luminosity in noisy site, if no luminosity optimisation is done within pulse Impact on static tuning not yet studied.
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Ground Motion Dynamic imperfections will affect luminosity performance or cost Most imperfections should be site independent Ground motion is not TRC: TESLA loses 15% luminosity in noisy site, if no luminosity optimisation is done within pulse Impact on static tuning not yet studied
Decision Needed • Is the ground motion part of the site selection? • Probably too late • Is the ground motion to be mitigated by stabilisation? • We could also accept loss in performance • GG4 will provide ground motion spectra