The CERN Proton Synchrotron Booster (PSB) produces a wide variety of high intensity and high brightness beams for the fixed target experiments and the Large Hadron Collider (LHC). As part of the LHC Injectors Upgrade (LIU) project, many upgrades were made to the accelerator, including a new injector, Linac4, increased injection and extraction energies, charge exchange injection and new RF...
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A new electrostatic injection for the 500 MeV cyclotron has been designed, constructed, and commissioned. Approximately 40 meters of electrostatic transport now replace the previous injection system, extending from the H⁻ ion source to the vertical injection section. The upgrade includes the integration of a second H⁻ ion source, connected through additional electrostatic beam transport,...
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During the commissioning of the ESS LINAC in early summer 2025, we recorded beam-loading transients from a 5 µs, 5 mA beam in 47 superconducting cavities: 26 Spoke and 21 Elliptical Medium Beta. We compare the beam-induced cavity voltage and current phasors with a standard beam-loaded cavity model that includes coupling, loaded $Q$, and detuning, thereby validating model parameters across the...
