Speaker
Description
High-brightness X-ray Free Electron Lasers (FELs) are transformative tools for scientific discovery. However, most existing FELs are kilometer-scale facilities with high construction costs and low repetition rates, limiting their accessibility and throughput. This paper proposes a compact, high-repetition-rate (MHz) EUV to 1 nm soft X-ray FEL with a footprint of less than 100 meters. The facility leverages a multi-turn recirculating linear accelerator that integrates superconducting technology with recent advances in diffraction-limited storage rings.
We present the conceptual design and analyze the impact of incoherent and coherent synchrotron radiation, demonstrating that these effects do not limit achieving high-quality electron beams. Such a compact facility would substantially reduce construction and operational costs while expanding access to these research tools. Furthermore, the design provides a potential upgrade path to hard X-ray radiation by incorporating high-accelerating gradient structures to further accelerate a portion of the MHz electron beam.
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