| Paper |
Title |
Page |
| WEPAB108 |
Angular Trajectory Kicks in a High-Gain Free-Electron Laser |
2830 |
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- P. Baxevanis, Z. Huang, G. Stupakov
SLAC, Menlo Park, California, USA
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In a free-electron laser (FEL), transverse momentum offsets (or kicks) are introduced either inadvertently (through wakefields or mis-steering of the electron beam) or as part of dedicated schemes that require off-axis radiation propagation. Studying the influence of this effect on the performance of machines such as LCLS-I/II is critical both from a tolerance point of view and for its practical applications. A theoretical analysis of a high-gain FEL driven by such a kicked beam will be presented, with a critical evaluation of previous studies.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2017-WEPAB108
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| WEPAB109 |
Multipole Field Effects in a Transverse Gradient Undulator |
2833 |
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- P. Baxevanis, Z. Huang
SLAC, Menlo Park, California, USA
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Using a transverse gradient undulator (TGU) is one of the methods proposed in order to enable the utilization of electron beams with large energy spread (such as those from plasma-based accelerators) in a free-electron laser (FEL). Most of the analytical treatments of this scheme assume a linear variation of the undulator field with one of the transverse coordinates. While this assumption leads to a simplified and more tractable model, including higher-order multipoles allows us to offer a more complete and rigorous description of the system. In this paper, we investigate the magnetic field components of a TGU using both theory and simulation and explore the impact of higher-order multipoles on the FEL performance.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2017-WEPAB109
|
|
| Export • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
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