http://www.cnr.it/ontology/cnr/individuo/prodotto/ID233502
Study of the scaling of magnetic fluctuations in the RFX reversed field pinch (Articolo in rivista)
- Type
- Label
- Study of the scaling of magnetic fluctuations in the RFX reversed field pinch (Articolo in rivista) (literal)
- Anno
- 2000-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1088/0741-3335/42/7/307 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- D. Terranova; T. Bolzonella; S. Cappello; P. Innocente; L. Marrelli; R. Pasqualotto (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://iopscience.iop.org/0741-3335/42/7/307/ (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Consorzio RFX, Corso Stati Uniti, 4, 35127 Padova, Italy (literal)
- Titolo
- Study of the scaling of magnetic fluctuations in the RFX reversed field pinch (literal)
- Abstract
- The scaling of magnetic fluctuations with the Lundquist number (S) is studied in the RFX reversed field pinch (RFP) device for different operational regimes. For the first time in a RFP experiment a complete set of diagnostics to measure all the quantities needed to estimate S is available. Due to the high plasma currents (up to 1.1 MA) obtained in RFX, a broad range of S values is available for scaling. The results are compared with numerical MHD simulations (SPECYL code) providing a reasonable agreement (?_exp = -0.18±0.02, ?_SPECYL = -0.22). The modification to the expected scaling law due to viscous effects is also discussed.
We also perform a comparison of the amplitude of magnetic fluctuations in discharges with different characteristics: standard, pulsed poloidal current drive (PPCD), quasi single helicity and rotating locked mode induced by an external rotating toroidal field modulation. A reduced level of fluctuations is obtained during PPCD operations, although the dependence on S is the same. Concerning confinement time, at fixed I/N?3×10^14 Am, a favourable scaling with S is found. Its interpretation in terms of the simple Rechester-Rosenbluth model is briefly discussed. (literal)
- Prodotto di
- Autore CNR
- Insieme di parole chiave
Incoming links:
- Autore CNR di
- Prodotto
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
- Insieme di parole chiave di