Speakers
Description
Abstract:
The Super Taume-Charm Facility (STCF), a new generation of electron-positron collider led by the University of Science and Technology of China, requires a high-quality positron source to sustain high-luminosity continuous operation. The Adiabatic Matching Device (AMD) is a critical component for positron focusing, its excitation pulse source requires a peak current ≥15 kA and a pulse front edge ≤3.5 us. To reduce the significant power dissipation of pulse discharge system, an energy feedback circuit was designed. The optimized system achieved a dramatic reduction in losses, decreasing input power by 73.96% and enhancing long-term operational stability. This article provides a detailed account of the simulation of power loss in AMD excitation pulse sources, as well as the design, simulation, and offline debugging of energy feedback circuits.
Key words: excitation pulse power for AMD; power loss; energy feedback; photoconductive semiconductor switch
Footnotes
Xiao-Cong Ai et al., Conceptual Design Report of Super Tau-Charm Facility: The Accelerator, (2025), Nucl. Sci. Tech. 36, 242 (2025)/arXiv: 2509.11522 [physics.acc-ph]
Funding Agency
We thank the Hefei Comprehensive National Science Center for their strong support on the STCF key technology research project. This work is supported by the National Key R&D Program of China under Con
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