Ultra-high brightness electron beams from very-high field cryogenic radiofrequency photocathode sources

High Brightness Electron Sources

The production of unprecedentedly high brightness electron beams is a critical aspect of many applications, from free-electron lasers to advanced accelerators. The preferred method for obtaining these beams is the radiofrequency photoinjector. The physics and technology aspects of this device are reviewed here, along prospects for future progress in high-brightness beam development.

High Brightness Electron Beams from a Multi- Filamentary Niobium-tin Photocathode

High-brightness electron sources are of fundamental interest for particle accelerators and modern free electron lasers. Inspired by the micro-structure of field emitter arrays [1,2] we report on a new type of metallic photo-cathode consisting of thousands of Nb3Sn micro-columns. With this metallic photocathode we could demonstrate quantum efficiencies up to 0.5% under stable operation [3,4]. Pr...

High Current and High Brightness Electron Sources

The development of high current, high brightness electron guns is critically important for free-electron laser and energy recovery linear-accelerator light source facilities. In this paper, we will review the technical requirements of such projects and the status of on-going research throughout the community including results of emittance measurements and high current beam performance.

Velocity bunching of high-brightness electron beams

S. G. Anderson,* P. Musumeci, J. B. Rosenzweig, W. J. Brown, R. J. England, M. Ferrario, J. S. Jacob, M. C. Thompson, G. Travish, A. M. Tremaine, and R. Yoder Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA Department of Physics and Astronomy, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095, USA Istituto Naziona...

Developing High-Brightness Electron Beam Sources for Producing Quantum Degenerate Electron Beams