Beams with significant correlations between different phase spaces are increasingly important for advanced accelerator applications. A prime example is magnetized beams, where cross-plane correlations between the two transverse phase spaces dominate the beam dynamics. Precisely controlling these cross-plane couplings—either by introducing or eliminating them in beams with high transverse...
The speaker will illustrate the motivations which, in the last decade, brought to new consideration of RF transverse deflecting cavities, a.k.a. crab cavities, for application to storage ring light sources (time-resolved synchrotron radiation experiments) as well as to circular and linear colliders (maximizing luminosity). He will report on the physical constraints of the aforementioned...
The RCS at J-PARC is a kicker-impedance-dominant machine, which exceeds the impedance budget from a classical viewpoint. However, we have achieved a 1-MW beam without transverse feedback by fully utilizing the indirect space charge effect to suppress beam instabilities. Although the indirect space charge effect is beneficial, beam instability can still occur in a high-intensity beam with...
The speaker has experience in the modeling and measurement of high-intensity beams, including the SNS linac and BTF. Dynamics of halo formation and losses in the linac could be discussed. In addition to the unique status of SNS as the premier US intensity-frontier facility, the BTF has unique high dynamic range phase space diagnostics that enable detailed benchmarking of phase space details...
