2 papers
physics.acc-ph2025
Femtosecond-Scale MeV-UED Beamline Using a Stand-Alone Multi-Cell RF Photogun
Thomas Geoffrey Lucas, Paolo Craievich, David Alesini +11
The temporal resolution of MeV ultrafast electron diffraction (UED) is fundamentally constrained by the electron bunch length at the sample, motivating the development of new elect…
physics.acc-ph2025
Conical Targets for Enhanced High-Current Positron Sources
Nicolas Vallis, Ramiro Mena-Andrade, Barbara Humann +10
Previous pair-production-driven positron source designs have assumed that the transverse dimension of the target is significantly greater than the secondary beam it generates. This…