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Ground motion noise at frequencies around 1 kHz causes growth of transverse emittance t,f the Superconducting Super Collider (SSC) collider beams. The effect was quantitatively investigated using real-time signals from seismometers installed at the tunnel depth and on the surface. The SSC beam was modeled as an ensemble of oscillators with a spread of betatron frequencies. The effect of transverse feedback on emittance growth was investigated. .,.doi:10.2172/10185501 fatcat:753x4ipazbb7dhv3kq7tvqkwoa