The TriMeV accelerator for pulsed power driven radiography experiments

Publisher Website
Google Scholar
Abstract
Summary form only given. The extremely fast /spl sim/3 ns rise-time of the TriMeV voltage pulse is ideal for studying beam transport issues. A series of radiographic source optimization experiments planned in collaboration with Sandia National Laboratories will investigate different diode configurations to reduce the radiographic spot size. Both ballistic propagation and non-neutralized transport, where the self-fields pinch the beam, will be studied. A magnetically-immersed diode, where a mm-diameter electron beam is launched from a needle cathode and confined in a /spl sim/12 T solenoidal magnetic field during acceleration to the target in vacuum, will also be studied. This immersed diode previously demonstrated <2-mm spots on the Hermes III accelerator. It is anticipated that similar results will be attained on TriMeV. A review of the operating parameters, geometry, and electrical characteristics will be presented along with an outline of the experimental program and a description of the diode and transport configurations studied. The most recent shot data will also be presented with an emphasis on the results from the immersed diode experiments.

This publication has 0 references indexed in Scilit: