Developing high brightness and high current beams for HIF injectors

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...

High Brightness Proton Beams for Lhc: Needs and Means

Experiments [1, 2] have proven that the LHC injector chain can deliver a proton beam with the nominal characteristics (bunch intensity Nb=1.15×10 protons per bunch (ppb) in normalised rms transverse emittances of εn,x,y=3.5 μmrad), but cannot reach the ultimate performance (1.7×10 ppb in the same emittances). Moreover, in the longer term, an even higher beam brightness Nb/εn is required by all ...

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

Simulation of Field-emission Cathodes for High Current Electron Injectors

From the prospect of the high average current electron injectors, the most important advantage of the fieldemission cathodes is their capability to generate very large current densities. Simulation of field-emission cathodes is complicated by the large range of spatial dimensions: from sub-micron scale, for a single field-emission tip, to millimeter scale, for a field-emitter array. To overcome...