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Title: A new ion cyclotron range of frequency scenario for bulk ion heating in deuterium-tritium plasmas: How to utilize intrinsic impurities in our favour

A fusion reactor requires plasma pre-heating before the rate of deuterium-tritium fusion reactions becomes significant. In ITER, radio frequency (RF) heating of {sup 3}He ions, additionally puffed into the plasma, is one of the main options considered for increasing bulk ion temperature during the ramp-up phase of the pulse. In this paper, we propose an alternative scenario for bulk ion heating with RF waves, which requires no extra {sup 3}He puff and profits from the presence of intrinsic Beryllium impurities in the plasma. The discussed method to heat Be impurities in D-T plasmas is shown to provide an even larger fraction of fuel ion heating.
Authors:
; ; ; ;  [1] ;  [2] ;  [3] ;  [4] ;  [5]
  1. Laboratory for Plasma Physics, LPP-ERM/KMS, EUROfusion Consortium Member, Brussels (Belgium)
  2. Max-Planck-Institut für Plasmaphysik, Garching (Germany)
  3. CEA, IRFM, F-13108 Saint-Paul-lez-Durance (France)
  4. Catalan Institution for Research and Advanced Studies, Barcelona (Spain)
  5. (BSC), Barcelona (Spain)
Publication Date:
OSTI Identifier:
22490060
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 8; Other Information: (c) 2015 EURATOM; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BERYLLIUM; DEUTERIUM; D-T OPERATION; FREQUENCY RANGE; HELIUM 3; HELIUM IONS; ICR HEATING; ITER TOKAMAK; PLASMA; PLASMA IMPURITIES; PULSES; THERMONUCLEAR FUELS; THERMONUCLEAR REACTIONS; TRITIUM