L-H transport barrier formation

Monte Carlo simulation of the sheared E × B flow dynamics in tokamaks

Jukka Heikkinen (Corresponding Author), Timo Kiviniemi, A. Peeters

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

Monte Carlo ion simulation and semi‐analytical calculation of the neoclassical radial current balance in a tokamak plasma edge show no spontaneous bifurcation of radial electric field Er in contrast with earlier orbit loss models, but bifurcation and a solitary Er generation by electrode polarization are seen. Strong orbit loss shear is found for H‐mode threshold conditions in ASDEX Upgrade, indicating that orbit loss is the major source of the shear for L‐H transition.

Original languageEnglish
Pages (from-to)431 - 436
Number of pages6
JournalContributions to Plasma Physics
Volume40
Issue number3-4
DOIs
Publication statusPublished - 2000
MoE publication typeA1 Journal article-refereed

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orbits
shear
simulation
thresholds
electrodes
electric fields
polarization
ions

Cite this

Heikkinen, Jukka ; Kiviniemi, Timo ; Peeters, A. / L-H transport barrier formation : Monte Carlo simulation of the sheared E × B flow dynamics in tokamaks. In: Contributions to Plasma Physics. 2000 ; Vol. 40, No. 3-4. pp. 431 - 436.
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L-H transport barrier formation : Monte Carlo simulation of the sheared E × B flow dynamics in tokamaks. / Heikkinen, Jukka (Corresponding Author); Kiviniemi, Timo; Peeters, A.

In: Contributions to Plasma Physics, Vol. 40, No. 3-4, 2000, p. 431 - 436.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - L-H transport barrier formation

T2 - Monte Carlo simulation of the sheared E × B flow dynamics in tokamaks

AU - Heikkinen, Jukka

AU - Kiviniemi, Timo

AU - Peeters, A.

PY - 2000

Y1 - 2000

N2 - Monte Carlo ion simulation and semi‐analytical calculation of the neoclassical radial current balance in a tokamak plasma edge show no spontaneous bifurcation of radial electric field Er in contrast with earlier orbit loss models, but bifurcation and a solitary Er generation by electrode polarization are seen. Strong orbit loss shear is found for H‐mode threshold conditions in ASDEX Upgrade, indicating that orbit loss is the major source of the shear for L‐H transition.

AB - Monte Carlo ion simulation and semi‐analytical calculation of the neoclassical radial current balance in a tokamak plasma edge show no spontaneous bifurcation of radial electric field Er in contrast with earlier orbit loss models, but bifurcation and a solitary Er generation by electrode polarization are seen. Strong orbit loss shear is found for H‐mode threshold conditions in ASDEX Upgrade, indicating that orbit loss is the major source of the shear for L‐H transition.

U2 - 10.1002/1521-3986(200006)40:3/4<431::AID-CTPP431>3.0.CO;2-9

DO - 10.1002/1521-3986(200006)40:3/4<431::AID-CTPP431>3.0.CO;2-9

M3 - Article

VL - 40

SP - 431

EP - 436

JO - Contributions to Plasma Physics

JF - Contributions to Plasma Physics

SN - 0863-1042

IS - 3-4

ER -