ELECTRON BEAM INJECTION, DEFLECTION, AND TRANSPORT IN THE UNM BETATRON

We present results from recent experiments on the generation of high-power relativistic electron beams using an upgraded injector and the subsequent injection and transport of these beams in the UNM Betatron. The experiments described were performed with peak beam energies of about 420 keV. The electron beams were deflected onto the main axis of the accelerating ring using a transverse electrostatic field. The dependence of transported beam current on both the vertical and focusing magnetic field strengths is discussed. INJECTOR UPGRADE The electron beam injector, described in detail elsewhere [I], has been upgraded to provide voltages up to 600 kV to a felt cathode electron beam diode, double the original peak voltage. In addition, a novel crowbar utilizing high voltag