Speaker
Description
The PERLE project aims to construct a novel high power Energy Recovery Linac (ERL) demonstrator (5 MW) for developing and applying the energy recovery technique in a multi-turn configuration. In its final layout the machine will operate in a three turn mode, delivering a 20 mA electron beam at 250 MeV. These challenging parameters make PERLE a unique multi turn ERL facility operating in an unexplored power regime, allowing the study and validation of a broad range of accelerator phenomena and paving the way for future, larger scale ERLs.
To achieve maximum efficiency, dedicated RF studies have been performed to dimension the RF system, focusing in particular on the external coupling of the superconducting cavities for both the injector and the ERL section. These studies enable the determination of the required RF power, and optimisation results for the two cryomodules will be presented.
In addition, a cavity model together with its feedback control loop has been developed and used to evaluate the impact of transients during ERL ‘filling’. The models, simulation results, and their implications for the filling pattern will be shown. Finally, the strategy for ramping up the beam current in the machine and the associated effects on transient behaviour will be discussed.
Funding Agency
Part of this work supported by ANR in the France 2030 framework - reference ANR-24-RRII-0001 - & European Union‘s program EU HORIZON-INFRA-2023-TECH-01-01 under GA n°101131435
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