Transverse-Longitudinal Correlations: FEL Performance and Emittance Transfer
by
Andrew Sessler (LBNL, USA)
→
Europe/Zurich
AB Auditorium Meyrin (CERN)
AB Auditorium Meyrin
CERN
Description
It is shown that transverse-longitudinal correlations would be advantageous for free electron lasers (FEL). The theoretical reasons are developed and a number of numerical examples are given. Methods of producing such correlations are described, consisting of rf cavities, or non-linear transport channels with rf cavities, or laser backscattering, lasers and wigglers, and plasma channels. It is shown that emittance transfer would also be advantageous for FELs. It is shown that introducing specific correlations would allow just such transfers.