Particle Tracking Simulation of Collective Modes. Parametric Landau Damping Off Coupling Resonance.

Conference · Sun Apr 01 00:00:00 EDT 2018

OSTI ID:1452817

Macridin, Alexandru ^[1]; Burov, Alexey ^[1]; Stern, Eric ^[1]; Amundson, James ^[1]; Spentzouris, Panagiotis ^[1]

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1. Fermilab

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 modeparticle coupling with particle dependent trapping frequency. The second example is due to the modulation of the modeparticle coupling in one transverse plane by the oscillatory motion in the other plane.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1452817
• Report Number(s): FERMILAB-CONF-18-145-APC-CD; 1676314
• Resource Relation: Conference: 9th International Particle Accelerator Conference, Vancouver, BC Canada, 04/29-05/04/2018
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS