Speaker
Margarit Asatrian
(Universität Hamburg)
Description
We present a simulation study of a tapered FEL oscillator, which aims at delivering high average power in the extreme ultraviolet wavelength region. The setup relies on the combination of three critical elements: a pre-buncher, a strongly tapered undulator and an optical cavity enclosing them. Such a configuration allows for efficient power extraction
from a high-brightness electron beam.
We concentrate on tuning the steady state of the oscillator, including the optimisation of the taper profile based on an analytical estimate, as well as a multi-pass optimisation of the cavity design. We briefly address the buildup from shot-noise power level.
Authors
Margarit Asatrian
(Universität Hamburg)
Eugenio Ferrari
(Deutsches Elektronen-Synchrotron DESY)
Andrew Fisher
(Particle Beam Physics Lab (PBPL))
Georgia Paraskaki
(Deutsches Elektronen-Synchrotron DESY)
Pietro Musumeci
(University of California, Los Angeles)
Wolfgang Hillert
(Universität Hamburg)
