Speaker
Tianlong He
(USTC)
Description
This presentation will introduce two types of zero-mode instabilities induced by the double RF fundamental impedances in synchrotron radiation storage rings. The first type is driven by the high loaded-Q impedance of a superconducting harmonic cavity, with the distinctive feature that it can be enhanced by radiation damping. The second type is driven by the closed-loop main cavity impedance with feedback and is strongly affected by the feedback parameters. The first type will directly guide the future development of superconducting harmonic cavity technology, while the second type may provide useful guidance for optimizing the feedback parameters of main RF cavities in existing or future synchrotron radiation storage rings.
Author
Tianlong He
(USTC)