Focused Intense Ion Beams Using Self-Pinched Relativistic Electron Beams

Abstract
A new two-dimensional diode simulation code is used to show the possibility of using hemispherical diodes to produce converging ion beams in the 1-10-MA range. The pinched electron flow enhances ion emission, while suppressing electron emission, allowing IiIe>1. Such focused ion beams are of considerable interest for use in ablatively driven implosions of fusion targets.