Three-dimensional analyses of magnetic fields in a staggered-array undulator
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611 (Japan)
A staggered-array undulator set inside the superconducting solenoid coils is shown to provide high undulator fields together with original longitudinal magnetic fields, a small undulator period of a few centimeters, easy tunability through the solenoid coil current, as well as compact, less expensive and easy fabrication. These performance characteristics seems very favorable for the single path X-ray FEL generation, since a great number of the undulator period is essential, in general. The previous two-dimensional analyses of electron beam trajectories have shown the necessity of the transverse stabilizing effect, which led to the three-dimensional analyses with successful stabilizing effects for the staggered-array undulator of about one meter for IR FEL. For X-ray FEL generation, electron trajectories with least deviation from the z-axis is rather mandatory for the light to grow over the undulator. Three-dimensional analyses are made to show the effect of parameters on the electron trajectories.
- OSTI ID:
- 21175529
- Journal Information:
- AIP Conference Proceedings, Vol. 413, Issue 1; Conference: Workshop on single pass, high gain FELs starting from noise, aiming at coherent x-rays, Garda Lake (Italy), 2-7 Jun 1997; Other Information: DOI: 10.1063/1.54404; (c) 1997 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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