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A model collision operator for orbit averaged Monte Carlo codes
KTH, School of Electrical Engineering (EES), Centres, Alfvén Laboratory Centre for Space and Fusion Plasma Physics.
KTH, School of Electrical Engineering (EES), Centres, Alfvén Laboratory Centre for Space and Fusion Plasma Physics.ORCID iD: 0000-0002-7142-7103
2006 (English)In: AIP Conf. Proc., 2006, 362-367 p.Conference paper, Published paper (Refereed)
Abstract [en]

Modelling of fast ion populations, e.g. during ion cyclotron resonance heating, requires accurate treatment of both the fast ions and the thermal populations, while retaining the effects of wide guiding centre orbits. Often the ion-ion collisions are modelled as test particles colliding against a Maxwellian background. However, this type of operator generates a transport of thermal ions on the time scale of ion-ion collisions, and not on the ion-electron time scale as suggested by neoclassical theory. Various approaches have been made to correct this defect. Here we introduce a radial electric field so that the friction between the trapped and passing ions balances the diffusion due to ion-ion collisions.

Place, publisher, year, edition, pages
2006. 362-367 p.
Series
AIP Conference Proceedings, ISSN 0094-243X ; 871
Keyword [en]
Monte Carlo operators, Neoclassical theory
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-155959DOI: 10.1063/1.2404571ISI: 000244483500037Scopus ID: 2-s2.0-33846987180ISBN: 0735403767 (print)ISBN: 9780735403765 (print)OAI: oai:DiVA.org:kth-155959DiVA: diva2:766190
Conference
THEORY OF FUSION PLASMAS: Joint Varenna-Lausanne International Workshop, 28 August-1 September 2006, Varenna, Italy
Note

QC 20141126

Available from: 2014-11-26 Created: 2014-11-17 Last updated: 2014-11-26Bibliographically approved

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Johnson, Thomas Joe

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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