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TY - CONF AU - Macridin, A. AU - Amundson, J.F. AU - Burov, A.V. AU - Spentzouris, P. AU - Stern, E.G. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - Particle Tracking Simulation of Collective Modes - Parametric Landau Damping Off Coupling Resonance J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - Employing Synergia simulations with the DMD method we investigate the Landau damping of space charge modes in bunched beams. The simulations reveal two instances of the parametric damping mechanism in bunched beams. The first example occurs in the proximity of coupling resonance and is due to the oscillation of particles' amplitudes in the transverse plane. This oscillation modulates the mode-particle coupling with particle dependent trapping frequency. The second example is due to the modulation of the mode-particle coupling in one transverse plane by the oscillatory motion in the other plane. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3137 EP - 3139 KW - damping KW - coupling KW - simulation KW - resonance KW - synchrotron DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-THPAF069 UR - http://jacow.org/ipac2018/papers/thpaf069.pdf ER -