Arbitrary emittance partitioning between any two dimensions for electron beams

Emittance and entropy of electron beams

Creating high-brightness electron beams, which have many practical applications, is done with cathodes in regions with large electric field by field emission. The brightness is high when the current is high and the volume of the beam in phase space is small. An estimate of the phase space volume is the rms emittance. The simulations described in this report show that the beam emitted by a gated...

Single Pulse Emittance Measurement Technique for Intense Relativistic Electron Beams

Ultralow emittance electron beams from a laser-wakefield accelerator

Limiting Effects in the Transverse-to-longitudinal Emittance Exchange Technique for Low Energy Relativistic Electron Beams

Transverse to longitudinal phase space manipulation hold great promises, e.g., as a potential technique for repartitioning the emittances of a beam. A proof-of-principle experiment to demonstrate the exchange of a low longitudinal emittance with a larger transverse emittance is in preparation at the Argonne Wakefield Accelerator using a ∼ 12 MeV electron beam. In this paper we explore the limit...

Electron solvation in two dimensions.

Ultrafast two-photon photoemission has been used to study electron solvation at two-dimensional metal/polar-adsorbate interfaces. The molecular motion that causes the excess electron solvation is manifested as a dynamic shift in the electronic energy. Although the initially excited electron is delocalized in the plane of the interface, interactions with the adsorbate can lead to its localizatio...