SYSTEM FOR PRODUCING HIGH ENERGY POSITIVELY CHARGED PARTICLES

摘要

A system for producing high energy positively charged particles which includes in series a source of negative ions; means axially injecting these ions into a small cyclotron which accelerates the ions to a first energy level; means extracting negative ions from the cyclotron in a high quality beam; and a two-stage tandem Van de Graaff accelerator which accepts the beam of negative ions at the first energy level, then accelerates them to a second higher energy level, strips their negative charge, and finally accelerates the resulting positive particles to a still higher third energy level.