Speaker
Stuart Walker
(Deutsches Elektronen-Synchrotron DESY)
Description
Controlling the beam longitudinal phase space (LPS) distribution is crucial for advanced free-electron laser operation modes. At the European XFEL, this task is particularly challenging due to the complex compression scheme, which includes three bunch compressors. We present an approach based on Bayesian optimisation that simplifies the search for compression configurations yielding current profiles with desirable features, such as a flat top or a pronounced spike at either the head or the tail of the bunch. Moreover, this method can also be applied to tune the RF parameters in start-to-end simulations to achieve better agreement with measured longitudinal phase space profiles.
| Paper status | Resubmitted proceeding files received and assigned to an editor. Accepted. |
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Author
Bianca Veglia
(Deutsches Elektronen-Synchrotron DESY)
Co-authors
Bolko Beutner
(Deutsches Elektronen-Synchrotron DESY)
Sergey Tomin
(Deutsches Elektronen-Synchrotron DESY)
Stuart Walker
(Deutsches Elektronen-Synchrotron DESY)