8 papers
Transverse coupled-bunch instabilities driven by high-order modes near the coupling resonance
You Sun, Weiwei Li, Tianlong He +3
Betatron coupling near the difference resonance has been explored and adopted in several fourth-generation storage rings, yet its influence on high-order-mode-driven transverse cou…
Particle swarm optimization fitting of long-range wake potentials for trapped-mode parameter characterization in the HALF storage ring
Haiyan Yao, Tianlong He, Xiaoyu Liu +2
Accurate extraction of trapped-mode impedance parameters of complex storage ring components is essential for assessing their impact on coupled-bunch instabilities. This paper propo…
A Realistic Proportional-Integral RF Feedback Model for Longitudinal Beam Dynamics Simulation
Tianlong He, Wenshu Liang, Jincheng Xiao +1
Modern fourth-generation storage ring light sources predominantly utilize digital I/Q-based proportional-integral (PI) feedback for their radio-frequency (RF) systems. This paper i…
Crab-waist interaction region design and integration for the Super Tau-Charm Facility
Linhao Zhang, Tao Liu, Ye Zou +10
The Super Tau-Charm Facility (STCF) is a new-generation collider proposed in China, designed to operate in the center-of-mass (CoM) energy range of 2-7 GeV. To achieve the…
Impact of coherent wiggler radiation impedance in Tau-Charm factories
Tianlong He, Ye Zou, Demin Zhou +6
Coherent synchrotron radiation (CSR) has long been recognized as a significant source of longitudinal impedance driving microwave instability in electron storage rings. In the purs…
Conceptual Design Report of Super Tau-Charm Facility: The Accelerator
Jiancong Bao, Anton Bogomyagkov, Zexin Cao +93
Electron-positron colliders operating in the GeV region of center-of-mass energies or the Tau-Charm energy region, have been proven to enable competitive frontier research, due to…