Internal transport barrier dynamics with plasma rotation in JET

De Vries, PC; Joffrin, E; Brix, M; Challis, CD; Crombe, K; Esposito, B; Hawkes, NC; Giroud, C; Hobirk, J; Lonnroth, J; Mantica, P; Strintzi, D; Tala, T; Voitsekhovitch, I

dc.contributor.author	De Vries, PC	en
dc.contributor.author	Joffrin, E	en
dc.contributor.author	Brix, M	en
dc.contributor.author	Challis, CD	en
dc.contributor.author	Crombe, K	en
dc.contributor.author	Esposito, B	en
dc.contributor.author	Hawkes, NC	en
dc.contributor.author	Giroud, C	en
dc.contributor.author	Hobirk, J	en
dc.contributor.author	Lonnroth, J	en
dc.contributor.author	Mantica, P	en
dc.contributor.author	Strintzi, D	en
dc.contributor.author	Tala, T	en
dc.contributor.author	Voitsekhovitch, I	en
dc.date.accessioned	2014-03-01T01:30:57Z
dc.date.available	2014-03-01T01:30:57Z
dc.date.issued	2009	en
dc.identifier.issn	0029-5515	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19684
dc.subject	Internal Transport Barrier	en
dc.subject.classification	Physics, Fluids & Plasmas	en
dc.subject.classification	Physics, Nuclear	en
dc.subject.other	Dominant factor	en
dc.subject.other	Further development	en
dc.subject.other	Growth phase	en
dc.subject.other	Internal transport barriers	en
dc.subject.other	Magnetic shear	en
dc.subject.other	Non-linear	en
dc.subject.other	Plasma rotations	en
dc.subject.other	Poloidal components	en
dc.subject.other	Positive feedback loop	en
dc.subject.other	Rotational shear	en
dc.subject.other	Transport barrier	en
dc.subject.other	Feedback	en
dc.subject.other	Heating	en
dc.subject.other	Jets	en
dc.subject.other	Tokamak devices	en
dc.subject.other	Shear strength	en
dc.title	Internal transport barrier dynamics with plasma rotation in JET	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/0029-5515/49/7/075007	en
heal.identifier.secondary	http://dx.doi.org/10.1088/0029-5515/49/7/075007	en
heal.identifier.secondary	075007	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	At JET the dynamics of internal transport barriers (ITBs) has been explored by trying to decouple the effects of heating on the one hand and torque on the other with the ultimate objective of identifying the minimum torque required for the formation of transport barriers. The experiments shed light on the physics behind the initial trigger for ITBs, which often shows to be linked to the shape of the q profile and magnetic shear, while the further development was influenced by the strength of the rotational shear. In discharges with a small amount of rotational shear ITBs were triggered, which suggest that the overall rotational shear is not the dominant factor in the triggering process. However, the subsequent growth of the barrier was limited if the rotational shear was too low at the time of triggering. This growth phase may be highly non-linear, with several possible positive feedback loops, such as the increases in the toroidal and poloidal component of the rotational shear caused by the ITB itself. © 2009 IAEA, Vienna.	en
heal.publisher	INT ATOMIC ENERGY AGENCY	en
heal.journalName	Nuclear Fusion	en
dc.identifier.doi	10.1088/0029-5515/49/7/075007	en
dc.identifier.isi	ISI:000267942000007	en
dc.identifier.volume	49	en
dc.identifier.issue	7	en