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001     28008
005     20240711113835.0
017 _ _ |a This version is available at the following Publisher URL: http://stacks.iop.org/0741-3335/45/1323
024 7 _ |a 10.1088/0741-3335/45/7/319
|2 DOI
024 7 _ |a WOS:000184656800021
|2 WOS
024 7 _ |a 2128/1780
|2 Handle
037 _ _ |a PreJuSER-28008
041 _ _ |a eng
082 _ _ |a 530
084 _ _ |2 WoS
|a Physics, Fluids & Plasmas
084 _ _ |2 WoS
|a Physics, Nuclear
100 1 _ |a Tokar, M. Z.
|b 0
|u FZJ
|0 P:(DE-Juel1)5089
245 _ _ |a Mechanism of central temperature peaking in impurity seeded plasmas
260 _ _ |a Bristol
|b IOP Publ.
|c 2003
300 _ _ |a 1323 - 1332
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
|0 0
|2 EndNote
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |a Plasma Physics and Controlled Fusion
|x 0741-3335
|0 4996
|v 45
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a Formation of a centrally peaked profile of the ion temperature by impurity seeding has been observed in all the largest tokamaks: JET, JT-60U, TFTR. A possible explanation of this phenomenon is proposed, which takes into account the suppression of ion temperature gradient instability induced anomalous transport through increasing ion effective charge Z(eff) and Doppler shift of unstable modes, S-perpendicular to. The particular importance of the S-perpendicular to component proportional to the temperature gradient, which stems from the pressure gradient and neoclassical poloidal rotation, is elucidated. It is demonstrated that this contribution grows significantly by impurity seeding when the rotation regime changes due to increased collisionality. An interrelation between the heating power density and Z(eff) necessary for the transition to a peaked ion temperature is found. The modification of radial profiles by impurity seeding is modelled numerically and the results are in agreement with the experimental data from JET.
536 _ _ |a Kernfusion und Plasmaforschung
|c E05
|2 G:(DE-HGF)
|0 G:(DE-Juel1)FUEK250
|x 0
588 _ _ |a Dataset connected to Web of Science
650 _ 7 |a J
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773 _ _ |a 10.1088/0741-3335/45/7/319
|g Vol. 45, p. 1323 - 1332
|p 1323 - 1332
|q 45<1323 - 1332
|0 PERI:(DE-600)1473144-7
|t Plasma physics and controlled fusion
|v 45
|y 2003
|x 0741-3335
856 7 _ |u http://dx.doi.org/10.1088/0741-3335/45/7/319
|u http://hdl.handle.net/2128/1780
856 4 _ |u https://juser.fz-juelich.de/record/28008/files/21127.pdf
|y OpenAccess
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909 C O |o oai:juser.fz-juelich.de:28008
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913 1 _ |k E05
|v Kernfusion und Plasmaforschung
|l Kernfusion und Plasmaforschung
|b Energie
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914 1 _ |y 2003
915 _ _ |0 StatID:(DE-HGF)0010
|a JCR/ISI refereed
915 _ _ |2 StatID
|0 StatID:(DE-HGF)0510
|a OpenAccess
920 1 _ |k IPP
|l Institut für Plasmaphysik
|d 31.12.2006
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970 _ _ |a VDB:(DE-Juel1)21127
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981 _ _ |a I:(DE-Juel1)IEK-4-20101013

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