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Title: Multi-beamlet investigation of the deflection compensation methods of SPIDER beamlets

SPIDER (Source for Production of Ions of Deuterium Extracted from a Rf plasma) is an ion source test bed designed to extract and accelerate a negative ion current up to 40 A and 100 kV whose first beam is expected by the end of 2016. Two main effects perturb beamlet optics during the acceleration stage: space charge repulsion and the deflection induced by the permanent magnets (called co-extracted electron suppression magnets) embedded in the EG. The purpose of this work is to evaluate and compare benefits, collateral effects, and limitations of electrical and magnetic compensation methods for beamlet deflection. The study of these methods has been carried out by means of numerical modeling tools: multi-beamlet simulations have been performed for the first time.
Authors:
; ; ; ;  [1]
  1. Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A), Corso Stati Uniti, 4, 35127 Padova (Italy)
Publication Date:
OSTI Identifier:
22482961
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 87; Journal Issue: 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCELERATION; ANIONS; DEUTERIUM IONS; OPTICS; PERMANENT MAGNETS; PLASMA; SIMULATION; SPACE CHARGE