Critical assessment of ion loss mechanisms for L-H transition

Timo Kiviniemi, Jukka Heikkinen, A. Peeters, T. Kurki-Suonio, Seppo Sipilä

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Monte Carlo ion simulation of the tokamak edge, based on the neoclassical radial current balance, shows that a considerable E×B shear, relevant for turbulence suppression, can be generated by orbit losses. In contrast to earlier orbit loss models, no spontaneous bifurcation of the radial electric field Er is found. However, a bifurcation and a solitary Er generation are found in simulations with electrode polarization.
Original languageEnglish
Pages (from-to)A185 - A190
Number of pages6
JournalPlasma Physics and Controlled Fusion
Volume42
Issue numberSupplement 5A
DOIs
Publication statusPublished - 2000
MoE publication typeA1 Journal article-refereed

Fingerprint

Orbits
orbits
Ions
ions
Turbulence
simulation
turbulence
Electric fields
retarding
Polarization
shear
Electrodes
electrodes
electric fields
polarization

Cite this

Kiviniemi, T., Heikkinen, J., Peeters, A., Kurki-Suonio, T., & Sipilä, S. (2000). Critical assessment of ion loss mechanisms for L-H transition. Plasma Physics and Controlled Fusion, 42(Supplement 5A), A185 - A190. https://doi.org/10.1088/0741-3335/42/5A/320
Kiviniemi, Timo ; Heikkinen, Jukka ; Peeters, A. ; Kurki-Suonio, T. ; Sipilä, Seppo. / Critical assessment of ion loss mechanisms for L-H transition. In: Plasma Physics and Controlled Fusion. 2000 ; Vol. 42, No. Supplement 5A. pp. A185 - A190.
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Kiviniemi, T, Heikkinen, J, Peeters, A, Kurki-Suonio, T & Sipilä, S 2000, 'Critical assessment of ion loss mechanisms for L-H transition', Plasma Physics and Controlled Fusion, vol. 42, no. Supplement 5A, pp. A185 - A190. https://doi.org/10.1088/0741-3335/42/5A/320

Critical assessment of ion loss mechanisms for L-H transition. / Kiviniemi, Timo; Heikkinen, Jukka; Peeters, A.; Kurki-Suonio, T.; Sipilä, Seppo.

In: Plasma Physics and Controlled Fusion, Vol. 42, No. Supplement 5A, 2000, p. A185 - A190.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Critical assessment of ion loss mechanisms for L-H transition

AU - Kiviniemi, Timo

AU - Heikkinen, Jukka

AU - Peeters, A.

AU - Kurki-Suonio, T.

AU - Sipilä, Seppo

PY - 2000

Y1 - 2000

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AB - Monte Carlo ion simulation of the tokamak edge, based on the neoclassical radial current balance, shows that a considerable E×B shear, relevant for turbulence suppression, can be generated by orbit losses. In contrast to earlier orbit loss models, no spontaneous bifurcation of the radial electric field Er is found. However, a bifurcation and a solitary Er generation are found in simulations with electrode polarization.

U2 - 10.1088/0741-3335/42/5A/320

DO - 10.1088/0741-3335/42/5A/320

M3 - Article

VL - 42

SP - A185 - A190

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

IS - Supplement 5A

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Kiviniemi T, Heikkinen J, Peeters A, Kurki-Suonio T, Sipilä S. Critical assessment of ion loss mechanisms for L-H transition. Plasma Physics and Controlled Fusion. 2000;42(Supplement 5A):A185 - A190. https://doi.org/10.1088/0741-3335/42/5A/320