NEOCLASSICAL TRANSPORT AND IOTA SCALING IN THE TJ-­‐II STELLARATOR

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dc.contributor.authorCastejón, F.
dc.contributor.authorRubio-Montero, Antonio. J.
dc.contributor.authorLópez-Fraguas, A.
dc.contributor.authorAscasíbar, E.
dc.contributor.authorMayo-García, R.
dc.date.accessioned2020-02-12T11:03:02Z
dc.date.available2020-02-12T11:03:02Z
dc.date.issued2016
dc.description.abstractNeoclassical transport properties are studied in the TJ-II stellarator, taking effective ripple and plateau factor as the figures of merit. Using the DKES code run by grid computing techniques, these two quantities have been estimated as functions of rotational transform and plasma volume. The effective helical ripple increases with plasma volume and rotational transform. These findings suggest the degradation of confinement with iota or volume, which contradicts the scaling laws of energy confinement and the TJ-II experimental results. The plateau factor is almost constant with volume, but it increases following an almost quadratic law with rotational transform. This indicates that the improvement in confinement with iota cannot be explained by neoclassical transport in TJ-IIes_ES
dc.description.sponsorshipEUROfusion Consortium and the Euratom research and training program 2014–2018 under grant agreement 633053. This work has been carried out also with the support of the Spanish Ministry of Economy and Competitiveness funded projects CODEC2 (TIN2015-63562-R) and ENE2014-52174-P.es_ES
dc.identifier.citationF. Castejón, A.J. Rubio-Montero, A. López-Fraguas, E. Ascasíbar, R. Mayo-García. "Neoclassical Transport and Iota Scaling in the TJ-II Stellerator". Nuclear Science and Technology 70, 406 - 416 (2016)es_ES
dc.identifier.doihttp://dx.doi.org/10.13182/FST15-165
dc.identifier.urihttps://hdl.handle.net/20.500.14855/697
dc.language.isoenges_ES
dc.publisherANSes_ES
dc.rights.accessRightsembargoed accesses_ES
dc.subjectStellarator scalinges_ES
dc.subjectTJ-II stellaratores_ES
dc.subjectNeoclassical transportes_ES
dc.titleNEOCLASSICAL TRANSPORT AND IOTA SCALING IN THE TJ-­‐II STELLARATORes_ES
dc.typepreprintes_ES
dc.type.hasVersionSMUR

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