Parametric Landau damping of space charge modes
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 i...
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American Physical Society
2018-01-01
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Series: | Physical Review Accelerators and Beams |
Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.21.011004 |
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doaj-9226b0997ad84ba2bc6b2cfe57d949372020-11-25T00:11:18ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882018-01-0121101100410.1103/PhysRevAccelBeams.21.011004Parametric Landau damping of space charge modesAlexandru MacridinAlexey BurovEric SternJames AmundsonPanagiotis SpentzourisLandau 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. We demonstrate the existence of parametric Landau damping in a simulation of transverse coherent modes of bunched accelerator beams with space charge.http://doi.org/10.1103/PhysRevAccelBeams.21.011004 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Alexandru Macridin Alexey Burov Eric Stern James Amundson Panagiotis Spentzouris |
spellingShingle |
Alexandru Macridin Alexey Burov Eric Stern James Amundson Panagiotis Spentzouris Parametric Landau damping of space charge modes Physical Review Accelerators and Beams |
author_facet |
Alexandru Macridin Alexey Burov Eric Stern James Amundson Panagiotis Spentzouris |
author_sort |
Alexandru Macridin |
title |
Parametric Landau damping of space charge modes |
title_short |
Parametric Landau damping of space charge modes |
title_full |
Parametric Landau damping of space charge modes |
title_fullStr |
Parametric Landau damping of space charge modes |
title_full_unstemmed |
Parametric Landau damping of space charge modes |
title_sort |
parametric landau damping of space charge modes |
publisher |
American Physical Society |
series |
Physical Review Accelerators and Beams |
issn |
2469-9888 |
publishDate |
2018-01-01 |
description |
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. We demonstrate the existence of parametric Landau damping in a simulation of transverse coherent modes of bunched accelerator beams with space charge. |
url |
http://doi.org/10.1103/PhysRevAccelBeams.21.011004 |
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