Disruption mitigation technology concepts and implications for ITER

L. R. Baylor, T. C. Jernigan, S. K. Combs, S. J. Meitner, N. Commaux, D. A. Rasmussen, P. B. Parks, M. Glugla, S. Maruyama, R. J.H. Pearce, M. Lehnen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Disruptions on ITER present challenges to handle the intense heat flux, the large forces from halo currents, and the potential first wall damage from energetic runaway electrons. Injecting large quantities of material into the plasma during the disruption can reduce the plasma energy and increase its resistivity to mitigate these effects. Assessments of the amount of various mixtures and quantities of material required have been made to provide collision mitigation of runaway electron conversion [1], which is the most difficult challenge. The quantities of material required (∼0.5 MPa-m3 for deuterium or helium gas) are large enough to have implications on the design and operation of the vacuum system and tokamak exhaust processing system.

Original languageEnglish
Title of host publication2009 23rd IEEE/NPSS Symposium on Fusion Engineering, SOFE 2009
DOIs
StatePublished - 2009
Event2009 23rd IEEE/NPSS Symposium on Fusion Engineering, SOFE 2009 - San Diego, CA, United States
Duration: Jun 1 2009Jun 5 2009

Publication series

NameProceedings - Symposium on Fusion Engineering

Conference

Conference2009 23rd IEEE/NPSS Symposium on Fusion Engineering, SOFE 2009
Country/TerritoryUnited States
CitySan Diego, CA
Period06/1/0906/5/09

Keywords

  • Disruption
  • ITER
  • Pellet

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