This paper compares different photocathodes that are applicable for electron injector
systems and summarizes the development in cathode technology in the last years. The …

High-power, high-brightness electron beams are of interest for many applications, especially
as drivers for free electron lasers and energy recovery linac light sources. For these …

We present a detailed study of the six-dimensional phase space of the electron beam
produced by the Cornell Energy Recovery Linac Photoinjector, a high-brightness, high …

High brightness, high charge electron beams are critical for a number of advanced
accelerator applications. The initial emittance of the electron beam, which is determined by …

Photocathodes capable of providing high intensity and highly spin-polarized electron beams
with long operational lifetimes are of great interest for the next generation nuclear physics …

Negative Electron Affinity (NEA) activated surfaces are required to extract highly spin-
polarized electron beams from GaAs-based photocathodes, but they suffer extreme …

High quantum efficiency photocathodes are mandatory for the operation of photoinjector
driven electron accelerators with high average current and high brightness beams …

Protection of free-electron sources has been technically challenging due to lack of materials
that transmit electrons while preventing corrosive gas molecules. Two-dimensional materials …

Alkali antimonide photocathodes have wide applications in free-electron lasers and electron
cooling. The short lifetime of alkali antimonide photocathodes necessitates frequent …

Two K 2 CsSb photocathodes were manufactured at Brookhaven National Lab and
delivered to Jefferson Lab within a compact vacuum apparatus at pressure∼ 10-11 Torr …