Since the discovery of electron-wave duality, electron scattering instrumentation has
developed into a powerful array of techniques for revealing the atomic structure of matter …

A practical, in-depth description of the physics behind electron emission physics and its
usage in science and technology Electron emission is both a fundamental phenomenon and …

The successful development in the last two decades of X-ray free electron lasers (FELs) with
their revolutionary brightness performance has been tightly dependent on the parallel …

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 …

Continuous-wave photoinjectors operating at high accelerating gradients promise to
revolutionize many areas of science and applications. They can establish the basis for a …

The genetic algorithm (GA) is a powerful technique that implements the principles nature
uses in biological evolution to optimize a multidimensional nonlinear problem. The GA …

Abstract Very-high-frequency (VHF) gun photoinjectors, capable of producing high-
brightness and high-repetition-rate electron bunches, are some of the best electron sources …

Reducing the intrinsic emittance of photocathodes is one of the most promising routes to
improving the brightness of electron sources. However, when emittance growth occurs …

A new high voltage photoemission gun has been constructed at Cornell University which
features a segmented insulator and a movable anode, allowing the cathode-anode gap to …

This paper reports the development of a simple and reliable apparatus for measuring ultra-
low emittance, or equivalently the mean transverse energy from cryogenically cooled …