Sawtooth heat pulse propagation in tokamaks: ballistic response and Fourier analysis (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Sawtooth heat pulse propagation in tokamaks: ballistic response and Fourier analysis (Articolo in rivista) (literal)

Anno

• 1996-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1088/0029-5515/36/7/I07 (literal)

Alternative label

• F. De Luca, P. Galli, G. Gorini, A. Jacchia, P. Mantica, N. Deliyanakis, M. Erba and L. Porte (1996)
  Sawtooth heat pulse propagation in tokamaks: ballistic response and Fourier analysis
  in Nuclear fusion (Online)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• F. De Luca, P. Galli, G. Gorini, A. Jacchia, P. Mantica, N. Deliyanakis, M. Erba and L. Porte (literal)

Pagina inizio

• 689 (literal)

Pagina fine

• 916 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://iopscience.iop.org/0029-5515/36/7/I07/ (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 36 (literal)

Rivista

• Nuclear fusion (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 7 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Dipartimento di Fisica, Milan Univ., Italy (literal)

Titolo

• Sawtooth heat pulse propagation in tokamaks: ballistic response and Fourier analysis (literal)

Abstract

• Fourier analysis is proposed as a tool for the recognition of non-diffusive features of heat pulse propagation in fusion plasmas. Application to a simulated ballistic sawtooth heat pulse shows that Fourier analysis can identify the plasma region (often well beyond the mixing radius) where the heat pulse is diffusive. In this region the initial temperature perturbation, as recorded by a diagnostic with moderate (approximate to 1 kHz) time resolution, is negligible. Fourier analysis of an example of JET sawtooth heat pulse diagnosed with the new ECE heterodyne diagnostic is consistent with the results from the simulated ballistic heat pulse. It cannot, however, be used as evidence of a ballistic effect owing to the limited diagnostic time resolution. When both the perturbed (chi(e)(p)) and the power balance (chi(e)(PB)) diffusivity can be determined reliably in recent JET sawtoothing plasmas, their ratio is chi(e)(p)/chi(e)(PB) approximate to 2-4 in agreement with previous results. (literal)

Prodotto di

• Istituto di fisica del plasma \"Piero Caldirola\" (IFP) (Istituto)

Autore CNR

• ALESSANDRO JACCHIA (Persona)
• PAOLA MANTICA (Persona)
• GIUSEPPE GORINI (Persona)

Incoming links:

Prodotto

• Istituto di fisica del plasma \"Piero Caldirola\" (IFP) (Istituto)

Autore CNR di

• PAOLA MANTICA (Persona)
• ALESSANDRO JACCHIA (Persona)
• GIUSEPPE GORINI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Nuclear fusion (Rivista)