Edge Localized Modes: Difference between revisions

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The physical mechanism of ELMs has not been fully clarified. Several possible explanations have been put forward:
The physical mechanism of ELMs has not been fully clarified. Several possible explanations have been put forward:
* Nonlinear interchange modes <ref>[http://dx.doi.org/10.1088/0741-3335/38/8/046 A. Takayama and M. Wakatani, ''ELM modelling based on the nonlinear interchange mode in edge plasma'', Plasma Phys. Control. Fusion '''38''' (1996) 1411-1414]</ref>
* Nonlinear interchange modes <ref>A. Takayama and M. Wakatani, ''ELM modelling based on the nonlinear interchange mode in edge plasma'', [[doi:10.1088/0741-3335/38/8/046|Plasma Phys. Control. Fusion '''38''' (1996) 1411-1414]]</ref>
* Coupled [[peeling-ballooning modes]] <ref>[http://link.aip.org/link/?PHPAEN/5/2687/1 J.W. Connor et al, ''Magnetohydrodynamic stability of tokamak edge plasmas'', Phys. Plasmas '''5''' (1998) 2687]</ref><ref>[http://link.aip.org/link/?PHPAEN/9/2037/1 P.B. Snyder et al, ''Edge localized modes and the pedestal: A model based on coupled peeling–ballooning modes'', Phys. Plasmas '''9''' (2002) 2037]</ref><ref>[http://dx.doi.org/10.1088/0741-3335/46/8/003 J.-S. Lönnroth et al, ''Predictive transport modelling of type I ELMy H-mode dynamics using a theory-motivated combined ballooning–peeling model'', Plasma Phys. Control. Fusion '''46''' (2004) 1197-1215]</ref><ref>[http://dx.doi.org/10.1088/0029-5515/49/9/095015 N. Hayashi et al, ''Integrated simulation of ELM energy loss and cycle in improved H-mode plasmas'', Nucl. Fusion '''49''' (2009) 095015]</ref>
* Coupled [[peeling-ballooning modes]] <ref>J.W. Connor et al, ''Magnetohydrodynamic stability of tokamak edge plasmas'', [http://link.aip.org/link/?PHPAEN/5/2687/1 Phys. Plasmas '''5''' (1998) 2687]</ref><ref>P.B. Snyder et al, ''Edge localized modes and the pedestal: A model based on coupled peeling–ballooning modes'', [http://link.aip.org/link/?PHPAEN/9/2037/1 Phys. Plasmas '''9''' (2002) 2037]</ref><ref>J.-S. Lönnroth et al, ''Predictive transport modelling of type I ELMy H-mode dynamics using a theory-motivated combined ballooning–peeling model'', [[doi:10.1088/0741-3335/46/8/003|Plasma Phys. Control. Fusion '''46''' (2004) 1197-1215]]</ref><ref>N. Hayashi et al, ''Integrated simulation of ELM energy loss and cycle in improved H-mode plasmas'', [[doi:10.1088/0029-5515/49/9/095015|Nucl. Fusion '''49''' (2009) 095015]]</ref>
* Peeling modes <ref>[http://link.aip.org/link/?APCPCS/871/87/1 C.G. Gimblett, ''Peeling mode relaxation ELM model'', AIP Conf. Proc. '''871''' (2006) 87-99]</ref>
* Peeling modes <ref>C.G. Gimblett, ''Peeling mode relaxation ELM model'', [[doi:10.1063/1.2404542|AIP Conf. Proc. '''871''' (2006) 87-99]]</ref>
* Flux surface peeling <ref>[http://dx.doi.org/10.1016/j.jnucmat.2004.09.067 E.R. Solano et al, ''ELMs and strike point jumps'', Journal of Nuclear Materials '''337-339''' (2005) 747-750 ]</ref>
* Flux surface peeling <ref>E.R. Solano et al, ''ELMs and strike point jumps'', [[doi:10.1016/j.jnucmat.2004.09.067|Journal of Nuclear Materials '''337-339''' (2005) 747-750]]</ref>
* [[Criticality of MHD equilibrium]] <ref> [http://dx.doi.org/10.1088/0741-3335/46/3/L02 Emilia R. Solano, ''Criticality of the Grad–Shafranov equation: transport barriers and fragile equilibria'', Plasma Phys. Control. Fusion '''46''' (2004) L7-L13] </ref>
* [[Criticality of MHD equilibrium]] <ref>Emilia R. Solano, ''Criticality of the Grad–Shafranov equation: transport barriers and fragile equilibria'', [[doi:10.1088/0741-3335/46/3/L02|Plasma Phys. Control. Fusion '''46''' (2004) L7-L13]]</ref>
* [[Self-Organised Criticality]] <ref>[http://dx.doi.org/10.1088/0029-5515/43/10/003 R. Sánchez et al, ''Modelling of ELM-like phenomena via mixed SOC-diffusive dynamics'', Nucl. Fusion '''43''' (2003) 1031-1039 ]</ref>
* [[Self-Organised Criticality]] <ref>R. Sánchez et al, ''Modelling of ELM-like phenomena via mixed SOC-diffusive dynamics'', [[doi:10.1088/0029-5515/43/10/003|Nucl. Fusion '''43''' (2003) 1031-1039]]</ref>


== ELMs and machine operation ==
== ELMs and machine operation ==