Weishi Wan

TL;DR: In this paper, the requirements and current status of cathodes for accelerator applications are reviewed and a research and development plan for advancing cathode technology is proposed, and the thermal emittance is derived and formulas used to compare the various cathode materials.

TL;DR: A new design for an aberration-corrected low energy electron microscope (LEEM) and photo electron emission microscope (PEEM), equipped with an in-line electron energy filter, that makes use of two magnetic prism arrays to guide the electron beam from the sample to the electron mirror, removing chromatic dispersion in front of the mirror by symmetry.

TL;DR: In this article, a nanohole array-based copper surface was designed to exhibit a plasmonic response at 800 nm, fabricated using the focused ion beam milling technique, optically characterized and tested as a photocathode in a high power radio frequency photoinjector.

TL;DR: The use of multiobjective genetic algorithms (MOGA) is explored to find globally optimized lattice settings in a storage ring to study the trade-offs in the optimization objectives between sets of optimal solutions.

TL;DR: A spin-resolved electron spectrometer capable of uniquely efficient and high energy resolution measurements is described in this article. But the method is not suitable for high-resolution spin- and angle-resolution photoemission spectroscopy (spin-ARPES).