Set emitting charged particles, emitting charged particles, welding apparatus, set of laden particle beam columns and, set of charged particle beams

摘要

''INJURY ISSUER OF CARRIED PARTICLES, CARRIED PARTICLE ISSUES, SOLDA APPAREMENT, PARTICLE COLUMN OF CARRIED PARTICLE FISH, AND PARTICLES SET OF CARRIED PARTICLES''A set of charged particles comprises an emitting element (5) to emit charged particles from a polarity. A shield tube electrode (6) circumferently circumferently circumferently circumferently circumferently circumferently circumferent the emitter element and is kept in use in the same polarity as charged particles. An acceleration tubular electrode (7) is positioned substantially coaxially with the shield electrode (6) and is kept in use,in the polarity opposite the shielding electrode. The arrangement is such that charged particles from the emitter element (5) initially spread outward and then are focused on a beam passing through the acceleration tubular electrode (7).