A model for the advantage of early electron cyclotron current drive in the suppression of neoclassical tearing modes

Lazaros, A; Maraschek, M; Zohm, H

dc.contributor.author	Lazaros, A	en
dc.contributor.author	Maraschek, M	en
dc.contributor.author	Zohm, H	en
dc.date.accessioned	2014-03-01T01:25:42Z
dc.date.available	2014-03-01T01:25:42Z
dc.date.issued	2007	en
dc.identifier.issn	1070-664X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17736
dc.subject.classification	Physics, Fluids & Plasmas	en
dc.subject.other	Electric currents	en
dc.subject.other	Electrons	en
dc.subject.other	Growth rate	en
dc.subject.other	Mathematical models	en
dc.subject.other	Electron cyclotron current drive (ECCD)	en
dc.subject.other	Neoclassical tearing modes	en
dc.subject.other	Neoclassical tearing modes (NTM)	en
dc.subject.other	Cyclotrons	en
dc.title	A model for the advantage of early electron cyclotron current drive in the suppression of neoclassical tearing modes	en
heal.type	journalArticle	en
heal.identifier.primary	10.1063/1.2720372	en
heal.identifier.secondary	http://dx.doi.org/10.1063/1.2720372	en
heal.identifier.secondary	042505	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	An analytic model for the advantage of the early application of electron cyclotron current drive (ECCD) in the suppression of neoclassical tearing modes (NTMs) is presented. The improved performance of early ECCD is attributed to the second (smaller) saturation island width, which appears for sufficiently small (relative to the ECCD deposition width) critical island widths, in the strongly nonlinear growth rate profile. The operational range for the advantage of early ECCD is obtained, and it is shown that it is favored by broad deposition profiles. The preliminary experimental results in ASDEX Upgrade [H. Zohm , Nucl. Fusion 41, 197 (2001)] are consistent with the present model. (c) 2007 American Institute of Physics.	en
heal.publisher	AMER INST PHYSICS	en
heal.journalName	Physics of Plasmas	en
dc.identifier.doi	10.1063/1.2720372	en
dc.identifier.isi	ISI:000246072900029	en
dc.identifier.volume	14	en
dc.identifier.issue	4	en