Speaker
Description
The Super Tau-Charm Facility (STCF), a next-generation electron-positron collider, requires ultra-low emittance and high luminosity, demanding strong synchrotron radiation damping. Due to limited ring circumference, conventional damping from bending magnets is insufficient, necessitating numerous damping wigglers. However, conventional electromagnetic wigglers face peak field limitations. To address this, a novel hybrid damping wiggler design is proposed, integrating auxiliary permanent magnets with the primary electromagnetic structure. This hybrid approach enhances excitation efficiency, achieving a peak magnetic field of nearly 2 T at a 40 mm gap. This innovation significantly reduces the required total length of damping wigglers, optimizing ring space while meeting stringent damping requirements for high-luminosity operations in the 2–7 GeV energy range.
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