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Undulator beamline optimization with integrated chicanes for X-ray free-electron-laser facilities
Eduard Prat1, Marco Calvi1, Romain Ganter1
1Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.
Journal of Synchrotron Radiation
|July 1, 2016
Summary
Optimizing X-ray free-electron-laser (FEL) layouts with magnetic chicanes reduces undulator length and enhances pulse coherence. This enables shorter, higher-power FEL pulses for advanced experiments.
Area of Science:
- Physics
- Accelerator Science
- Optics
Background:
- X-ray free-electron-laser (FEL) facilities are crucial for advanced research.
- Current FEL designs face limitations in undulator length, pulse coherence, and pulse duration.
- Optimizing undulator layouts is key to unlocking FEL potential.
Purpose of the Study:
- To present an optimized undulator layout for FEL facilities using magnetic chicanes.
- To demonstrate the benefits of this layout for FEL performance and experimental capabilities.
Main Methods:
- Investigated the integration of small magnetic chicanes between undulator modules.
- Performed numerical simulations for the soft X-ray beamline at the SwissFEL facility.
Main Results:
- The proposed layout reduces the required undulator length for FEL saturation.
- Achieved improved longitudinal coherence of FEL pulses.
- Enabled the generation of shorter FEL pulses with higher power levels.
- Optimizing the layout necessitates shorter undulator modules than standard ones.
Conclusions:
- The optimized undulator layout offers a compact solution for producing fully coherent FEL pulses.
- This advancement facilitates novel experiments requiring very short and high-power FEL pulses.
- The magnetic chicane approach enhances FEL capabilities for future research.
