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Characterization of peeling-ballooning stability limits on the pedestal

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Characterization of peeling-ballooning stability limits on the pedestal. / Snyder, P B ; Wilson, H R ; Osborne, T H ; Leonard, A W .

In: Plasma Physics and Controlled Fusion, Vol. 46, 05.2004, p. A131-A141.

Research output: Contribution to journalArticlepeer-review

Harvard

Snyder, PB, Wilson, HR, Osborne, TH & Leonard, AW 2004, 'Characterization of peeling-ballooning stability limits on the pedestal', Plasma Physics and Controlled Fusion, vol. 46, pp. A131-A141. https://doi.org/10.1088/0741-3335/46/5A/014

APA

Snyder, P. B., Wilson, H. R., Osborne, T. H., & Leonard, A. W. (2004). Characterization of peeling-ballooning stability limits on the pedestal. Plasma Physics and Controlled Fusion, 46, A131-A141. https://doi.org/10.1088/0741-3335/46/5A/014

Vancouver

Snyder PB, Wilson HR, Osborne TH, Leonard AW. Characterization of peeling-ballooning stability limits on the pedestal. Plasma Physics and Controlled Fusion. 2004 May;46:A131-A141. https://doi.org/10.1088/0741-3335/46/5A/014

Author

Snyder, P B ; Wilson, H R ; Osborne, T H ; Leonard, A W . / Characterization of peeling-ballooning stability limits on the pedestal. In: Plasma Physics and Controlled Fusion. 2004 ; Vol. 46. pp. A131-A141.

Bibtex - Download

@article{35002a5dac514174849c0af1ccfd3970,
title = "Characterization of peeling-ballooning stability limits on the pedestal",
abstract = "The peeling-ballooning model for edge localized modes (ELMs) and pedestal constraints, based on ideal MHD instabilities driven by pressure gradients and current in the edge barrier region, has been broadly applied toward understanding ELM and pedestal behaviour in a number of tokamak experiments. Due in part to multiple driving terms, multiple wavelengths and second stability access physics, the peeling-ballooning stability limits which are proposed to constrain the pedestal and trigger ELMs depend sensitively on many details of the tokamak equilibrium. Here we present a technique for characterizing these stability constraints as a function of important parameters, using carefully constructed model equilibria. We discuss comparisons of calculated stability constraints to observed pedestal behaviour, in which an encouraging level of agreement is found. We then present results of an extensive series of calculations which characterize, the peeling-ballooning stability constraints as a function-of pedestal width, magnetic field, plasma current, density, and triangularity.",
author = "Snyder, {P B} and Wilson, {H R} and Osborne, {T H} and Leonard, {A W}",
year = "2004",
month = may,
doi = "10.1088/0741-3335/46/5A/014",
language = "English",
volume = "46",
pages = "A131--A141",
journal = "Plasma Physics and Controlled Fusion",
issn = "0741-3335",
publisher = "IOP Publishing Ltd.",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Characterization of peeling-ballooning stability limits on the pedestal

AU - Snyder, P B

AU - Wilson, H R

AU - Osborne, T H

AU - Leonard, A W

PY - 2004/5

Y1 - 2004/5

N2 - The peeling-ballooning model for edge localized modes (ELMs) and pedestal constraints, based on ideal MHD instabilities driven by pressure gradients and current in the edge barrier region, has been broadly applied toward understanding ELM and pedestal behaviour in a number of tokamak experiments. Due in part to multiple driving terms, multiple wavelengths and second stability access physics, the peeling-ballooning stability limits which are proposed to constrain the pedestal and trigger ELMs depend sensitively on many details of the tokamak equilibrium. Here we present a technique for characterizing these stability constraints as a function of important parameters, using carefully constructed model equilibria. We discuss comparisons of calculated stability constraints to observed pedestal behaviour, in which an encouraging level of agreement is found. We then present results of an extensive series of calculations which characterize, the peeling-ballooning stability constraints as a function-of pedestal width, magnetic field, plasma current, density, and triangularity.

AB - The peeling-ballooning model for edge localized modes (ELMs) and pedestal constraints, based on ideal MHD instabilities driven by pressure gradients and current in the edge barrier region, has been broadly applied toward understanding ELM and pedestal behaviour in a number of tokamak experiments. Due in part to multiple driving terms, multiple wavelengths and second stability access physics, the peeling-ballooning stability limits which are proposed to constrain the pedestal and trigger ELMs depend sensitively on many details of the tokamak equilibrium. Here we present a technique for characterizing these stability constraints as a function of important parameters, using carefully constructed model equilibria. We discuss comparisons of calculated stability constraints to observed pedestal behaviour, in which an encouraging level of agreement is found. We then present results of an extensive series of calculations which characterize, the peeling-ballooning stability constraints as a function-of pedestal width, magnetic field, plasma current, density, and triangularity.

U2 - 10.1088/0741-3335/46/5A/014

DO - 10.1088/0741-3335/46/5A/014

M3 - Article

VL - 46

SP - A131-A141

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

ER -