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Title: Parametric Landau damping of space charge modes

Journal Article · · Physical Review Accelerators and Beams
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Landau damping is the mechanism of plasma and beam stabilization; it arises through energy transfer from collective modes to the incoherent motion of resonant particles. Normally this resonance requires the resonant particle's frequency to match the collective mode frequency. We have identified an important new damping mechanism, parametric Landau damping, which is driven by the modulation of the mode-particle interaction. This reveals new possibilities for stability control through manipulation of both particle and mode-particle coupling spectra. In conclusion, we demonstrate the existence of parametric Landau damping in a simulation of transverse coherent modes of bunched accelerator beams with space charge.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359; AC02-06CH11357
OSTI ID:
1418393
Alternate ID(s):
OSTI ID: 1402483
Report Number(s):
FERMILAB-PUB-16-391-APC-CD; arXiv:1609.09393; PRABCJ; 011004
Journal Information:
Physical Review Accelerators and Beams, Journal Name: Physical Review Accelerators and Beams Vol. 21 Journal Issue: 1; ISSN 2469-9888
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

References (13)

Fast head-tail instability with space charge journal August 1998
Erratum: Head-tail modes for strong space charge [Phys. Rev. ST Accel. Beams 12 , 044202 (2009)] journal October 2009
Dynamic mode decomposition of numerical and experimental data journal July 2010
On dynamic mode decomposition: Theory and applications journal December 2014
Head-tail modes for strong space charge journal April 2009
Spectral analysis of nonlinear flows journal November 2009
Variants of Dynamic Mode Decomposition: Boundary Condition, Koopman, and Fourier Analyses journal April 2012
Extracting spatial–temporal coherent patterns in large-scale neural recordings using dynamic mode decomposition journal January 2016
Synergia: An accelerator modeling tool with 3-D space charge journal January 2006
Construction of higher order symplectic integrators journal November 1990
Transverse modes of a bunched beam with space charge dominated impedance journal December 2009
Head-tail instability and Landau damping in bunches with space charge journal November 2010
Simulation of transverse modes with their intrinsic Landau damping for bunched beams in the presence of space charge journal July 2015

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