New Insights into MHD Dynamics of Magnetically Confined Plasmas from Experiments in RFX

Martin, Piero; Martini, S.; Antoni, V.; Apolloni, L.; Bagatin, Mario; Baker, W.; Barana, O.; Bartiromo, R.; Bettini, Paolo; Boboc, A.; Bolzonella, T.; Buffa, Antonio; Canton, A.; Cappello, S.; Carraro, L.; Cavazzana, R.; Chitarin, Giuseppe; Costa, S.; Dangelo, F.; Dal Bello, S.; De Lorenzi, A.; Desideri, Daniele; Escande, D.; Fattorini, L.; Fiorentin, Pietro; Franz, P.; Gaio, E.; Garzotti, L.; Giudicotti, Leonardo; Gnesotto, Francesco; Grando, L.; Guo, S. C.; Innoccente, P.; Intravaia, A.; Lorenzini, R.; Luchetta, A.; Malesani, Gaetano; Manduchi, G.; Marchiori, G.; Marrelli, L.; Martines, E.; Maschio, Alvise; Masiello, A.; Milani, F.; Moresco, Maurizio; Murari, A.; Nielsen, P.; Ogorman, M.; Ortolani, S.; Paccagnella, R.; Pasqualotto, R.; Pegourie, B.; Peruzzo, S.; Piovan, R.; Pomaro, N.; Ponno, Antonio; Preti, Giovanni; Puiatti, M. E.; Rostagni, Giorgio; Sattin, F.; Scarin, P.; Serianni, G.; Sonato, Piergiorgio; Spada, E.; Spizzo, G.; Spolaore, M.; Taliercio, C.; Telesca, G.; Terranova, D.; Toigo, V.; Tramontin, L.; Valisa, M.; Vianello, N.; Viterbo, M.; Zabeo, L.; Zaccaria, P.; Zanca, P.; Zaniol, B.; Zanotto, L.; Zilli, Enrico; Zollino, Giuseppe

doi:10.1088/0029-5515/42/3/304

The experimental and theoretical activity performed in the RFX device has allowed a deeper insight into the MHD properties of the reversed field pinch (RFP) configuration. A set of successful experiments has demonstrated the possibility of influencing both the amplitude and the spectrum of the magnetic fluctuations which characterize the RFP configuration. A new regime (quasi-single-helicity states) where the dynamo mechanism works in a nearly laminar way and a helical core plasma is produced has been investigated. With these studies a reduction of magnetic chaos has been obtained. The continuous rotation of wall locked resistive tearing modes has been obtained by an m = 0 rotating perturbation. This perturbation induces rotation of m = 1 non-linearly coupled modes.

Titolo:	New Insights into MHD Dynamics of Magnetically Confined Plasmas from Experiments in RFX
Autori:	MARTIN, PIERO S. MARTINI V. ANTONI L. APOLLONI BAGATIN, MARIO W. BAKER O. BARANA R. BARTIROMO BETTINI, PAOLO A. BOBOC BOLZONELLA, TOMMASO BUFFA, ANTONIO A. CANTON S. CAPPELLO L. CARRARO R. CAVAZZANA CHITARIN, GIUSEPPE S. COSTA F. DANGELO S. DAL BELLO A. DE LORENZI DESIDERI, DANIELE D. ESCANDE L. FATTORINI FIORENTIN, PIETRO P. FRANZ E. GAIO L. GARZOTTI GIUDICOTTI, LEONARDO GNESOTTO, FRANCESCO L. GRANDO S. C. GUO P. INNOCCENTE A. INTRAVAIA R. LORENZINI A. LUCHETTA MALESANI, GAETANO G. MANDUCHI G. MARCHIORI L. MARRELLI E. MARTINES MASCHIO, ALVISE A. MASIELLO F. MILANI MORESCO, MAURIZIO A. MURARI P. NIELSEN M. OGORMAN S. ORTOLANI R. PACCAGNELLA R. PASQUALOTTO B. PEGOURIE S. PERUZZO R. PIOVAN N. POMARO PONNO, ANTONIO PRETI, GIOVANNI M. E. PUIATTI ROSTAGNI, GIORGIO F. SATTIN P. SCARIN G. SERIANNI SONATO, PIERGIORGIO E. SPADA G. SPIZZO M. SPOLAORE C. TALIERCIO G. TELESCA D. TERRANOVA V. TOIGO L. TRAMONTIN M. VALISA N. VIANELLO M. VITERBO L. ZABEO P. ZACCARIA P. ZANCA B. ZANIOL L. ZANOTTO ZILLI, ENRICO ZOLLINO, GIUSEPPE mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2002
Rivista:	NUCLEAR FUSION
Abstract:	The experimental and theoretical activity performed in the RFX device has allowed a deeper insight into the MHD properties of the reversed field pinch (RFP) configuration. A set of successful experiments has demonstrated the possibility of influencing both the amplitude and the spectrum of the magnetic fluctuations which characterize the RFP configuration. A new regime (quasi-single-helicity states) where the dynamo mechanism works in a nearly laminar way and a helical core plasma is produced has been investigated. With these studies a reduction of magnetic chaos has been obtained. The continuous rotation of wall locked resistive tearing modes has been obtained by an m = 0 rotating perturbation. This perturbation induces rotation of m = 1 non-linearly coupled modes.
Handle:	http://hdl.handle.net/11577/2459087
Appare nelle tipologie:	01.01 - Articolo in rivista

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