On-axis Beam Accumulation Enabled by Phase Adjustment of a Double-frequency RF System for Diffraction-limited Storage Rings

作者：Gang Xu, Jinhui Chen, Z. H. Duan, Jing Qiu · 发表于：JACOW · 年份：2016 · DOI：10.18429/jacow-ipac2016-weoaa02 · 被引用次数：23 · 研究领域：Photonic and Optical Devices、Semiconductor Lasers and Optical Devices、Solid State Laser Technologies

Future synchrotron light sources aim to achieve ultra- low emittances on both transverse planes, approaching or even reaching the diffraction limit of X-ray photon energies. These diffraction-limited storage rings (DLSRs) feature very strong lattice nonlinearities and thus very small dynamic aperture, which exclude off-axis injection schemes. In this paper, we propose a longitudinal on-axis injection scheme, which is based on a double-frequency RF system and in- dependently adjustment of the RF phase of each cavity to enable RF gymnastics. Such a scheme looks feasible with the state-of-art technology of fast injection kicker. Compari- son with other on-axis injection schemes is also discussed.