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
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
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]
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