Article Correctness Is Author's Responsibility: Models Clarify Physics at Photocathode Surfaces

Newswise imageAdvances in materials science have improved the composition of materials used in photocathode production that can operate at visible wavelengths and produce a beam with reduced transverse electron momentum spread. Despite these advances, the surface roughness of the photocathode continues to limit beam properties. A research team created computer models to bridge the gap between theoretical and experimental studies to provide a better picture of the physics at the surface of the photocathode. The results are published this week in the Journal of Applied Physics.