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Title: Modelling of ICRF heating in DEMO with special emphasis on bulk ion heating

Ion cyclotron resonance frequency (ICRF) heating is one of the auxiliary heating schemes presently envisaged for ITER and DEMO. In this paper we analyse the potential of ICRF waves to heat the fuel ions in DEMO. Our analysis is carried out for the DEMO1 Reference Scenario from October 2013 (B = 6.8 T, I = 18.6 MA, R = 9.25 m, a = 2.64 m) optimized for a maximum pulse length of 2.3 hrs using the ICRF modelling codes PION and TORIC. We focus on second harmonic heating of tritium and fundamental minority heating of {sup 3}He ions (with a few percent of {sup 3}He) in a 50%:50% D-T plasma. The dependence of the ICRF characteristics and the ICRF-accelerated ions on the ICRF and plasma parameters is investigated, giving special attention to the DEMO design point at a core plasma temperature of 30 keV and an electron density of 1.2·10{sup 20} m{sup −3}.
Authors:
 [1] ;  [1] ;  [2] ;  [3]
  1. Barcelona Supercomputing Center, Barcelona (Spain)
  2. (Spain)
  3. Laboratory for Plasma Physics LPP-ERM/KMS, Brussels (Belgium)
Publication Date:
OSTI Identifier:
22496204
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1689; Journal Issue: 1; Conference: 21. topical conference on radio frequency power in plasmas, Lake Arrowhead, CA (United States), 27-29 Apr 2015; Other Information: (c) 2015 EURATOM; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AUXILIARY HEATING; COMPUTERIZED SIMULATION; ELECTRON DENSITY; ELECTRON TEMPERATURE; HELIUM 3; ICR HEATING; ION CYCLOTRON-RESONANCE; ION TEMPERATURE; IONS; ITER TOKAMAK; KEV RANGE 10-100; LENGTH; P CODES; PLASMA; T CODES