研究目的
Investigating novel schemes of trapping regimes in FELs to enhance efficiency and enable effective cooling of the electron beam.
研究成果
The experiments confirm the operability of the non-resonant trapping regime and demonstrate potential for efficiency enhancement and electron beam cooling in FELs. The multi-stage trapping regime shows promise for achieving high electron efficiency and improving the quality of electron bunches.
研究不足
The study is limited by the need for further optimization of the multi-stage trapping regime and its applicability to short-wavelength FELs.
1：Experimental Design and Method Selection:
The study involves proof-of-principle experiments on non-resonant trapping at Ka-band and theoretical analysis of multi-stage trapping in FELs.
2：Sample Selection and Data Sources:
Experiments were performed using a FEM-amplifier based on linac LIU-
3：List of Experimental Equipment and Materials:
30 Includes a helical wiggler, solenoid, and magnetrons for input signal.
4：Experimental Procedures and Operational Workflow:
The FEM-amplifier was operated in a non-resonant trapping regime with varying wiggler and guide fields to optimize output power.
5：Data Analysis Methods:
Output power and amplification band were measured and compared with simulations.
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