High Power Laser and Particle Beams, Volume. 37, Issue 5, 054004(2025)
Resonant injection method for compact X-ray light source
This study focuses on the critical challenge of the integrated storage ring injection system in a compact X-ray light source. Utilizing the 3D electromagnetic field simulation software CST and the beam dynamics simulation software ELEGANT, we conducted multi-parameter optimization design for the key component of the injection system—the perturbator. The phase space evolution behavior of the electron beam during half-integer resonance injection processes was systematically investigated, leading to optimized structural parameters of injection components. For the compact storage ring, the optimized injection scheme demonstrates that the perturbator achieves optimal performance when positioned within an angular range of 150°–210° relative to the injection point, with the electron beam injection offset by 30 mm from the equilibrium orbit. After the perturbator stops working, the injected electron oscillation amplitude is minimized to 3.4 mm. Furthermore, the feasibility of implementing a multi-turn multi-pass injection scheme in the compact storage ring was analyzed. Numerical results indicate that maximum injection efficiency can be obtained when the kicker operates at a frequency of 3 MHz. These findings provide critical insights for enhancing beam stability and operational efficiency in compact synchrotron radiation facilities.
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Ziqiang Dong, Zhuoxia Shao, Tong Zhang, Lin Wang, Yalin Lu. Resonant injection method for compact X-ray light source[J]. High Power Laser and Particle Beams, 2025, 37(5): 054004
Category: Special Column of 4th Symposium on Frontier of HPLPB
Received: Aug. 27, 2024
Accepted: Feb. 27, 2025
Published Online: May. 22, 2025
The Author Email: Tong Zhang (tongz@ustc.edu.cn)