This paper presents a novel, rapidly reconfigurable multileaf collimator (MLC) for high-fidelity beam shaping. The MLC, compatible with ultra-high vacuum, features independently actuated leaves to tailor mask profiles. Coupled with an emittance-exchange (EEX) beamline at the Argonne Wakefield Accelerator, transverse profiles are transformed into custom longitudinal distributions, including...
7 MeV electron bunches from a radiofrequency photoinjector, carrying
up to 100 pC of charge, traversed a localized distribution of nitrogen
gas (N2). The interaction of the electron bunches with the N2 gas
generated a correlated signature in the ionized particle distribution,
which was spatially magnified using a series of electrostatic lenses and
recorded with a microchannel-plate...
At the Paul Scherrer Institute (PSI), a minimally invasive wire scanner with sub-micrometer spatial resolution has been developed with a twofold objective: enabling real-time monitoring of the SwissFEL (Free Electron Laser) electron beam transverse size during lasing operation while also paving the way for a new generation of customizable wire scanners. These scanners are designed to be...
