Impurity transport during Pulsed Poloidal Current Drive experiment in the Reversed Field Pinch Experiment RFX (Articolo in rivista)

Type

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

Label

• Impurity transport during Pulsed Poloidal Current Drive experiment in the Reversed Field Pinch Experiment RFX (Articolo in rivista) (literal)

Anno

• 2002-01-01T00:00:00+01:00 (literal)

Alternative label

• L. Carraro 1, M.E. Puiatti 1, F. Sattin 4, P. Scarin 1, M. Valisa1 (2002)
  Impurity transport during Pulsed Poloidal Current Drive experiment in the Reversed Field Pinch Experiment RFX
  in Plasma physics and controlled fusion (Print)
  (literal)

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

• L. Carraro 1, M.E. Puiatti 1, F. Sattin 4, P. Scarin 1, M. Valisa1 (literal)

Pagina inizio

• 2135 (literal)

Pagina fine

• 2148 (literal)

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

• The paper is a result of the joint work of scientists operating at Consorzio RFX, which is one of the Italian Research Units part of the European Program on Controlled Thermonuclear Fusion. In Consorzio RFX scientists from CNR, ENEA and Padova University jointly operate. The RFX experiment is the most important Reversed Field Pinch (RFP) experiment in the world; the RFP magnetic configuration is extensively studied in Europe, USA and Japan. The main originality of the paper relies on the availability in RFX of many absolutely calibrated diagnostic systems, allowing the determination of the impurity transport parameters in different experimental conditions, through the comparison of the data with the results of a 1-dimensional impurity transport model. The journal where the paper is published is the most important european journal on plasma physics, where the submitted papers are subjected to a careful referee procedure thus assuring the notoriety and the good quality of the work. (literal)

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

• 44 (literal)

Rivista

• Plasma physics and controlled fusion (Rivista)

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

• Università di Padova, CNR ed ENEA hanno costituito il Consorzio RFX per realizzare congiuntamente attività di ricerca sulla fusione nucleare controllata. Il personale resta dipendente dal proprio ente, precisato nel campo (literal)

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

• The characteristics of the impurity transport in the RFX Reversed Field pinch (RFP) experiment during enhanced confinement regimes, such as those obtained performing Pulsed Poloidal Current Drive and Oscillating Poloidal Current Drive, have been investigated. It is found that during the enhanced confinement period, the ratio between the Ly-alpha line of CVI and the resonance line of CV increases systematically well beyond the expected enhancement due to the temperature improvement. Experimental data have been reproduced by means of a 1-dimensional, time dependent, Collisional-Radiative impurity transport code, which simulates several C and O lines, continuum emission and radiated power. In standard RFX plasmas the typical diffusion coefficient is ~ 20 m2/s at the plasma centre decreasing to ~ 1 m2/s at the edge. Best simulations of the spectroscopic data during the enhancement confinement phases are obtained by expanding the low diffusion region at the edge from r/a= 0.9 to r/a=0.8±0.05 and shrinking the neutral density profile at the edge. (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• 1 CNR, 2 UniPD, 3 ENEA, 4 Consorzio RFX (dipendenti), (i dipendenti di 1-2-3 sono anche affiliati al Consorzio) (literal)

Titolo

• Impurity transport during Pulsed Poloidal Current Drive experiment in the Reversed Field Pinch Experiment RFX (literal)

Abstract

• The characteristics of the impurity transport in the RFX Reversed Field pinch (RFP) experiment during enhanced confinement regimes, such as those obtained performing Pulsed Poloidal Current Drive and Oscillating Poloidal Current Drive, have been investigated. It is found that during the enhanced confinement period, the ratio between the Ly-alpha line of CVI and the resonance line of CV increases systematically well beyond the expected enhancement due to the temperature improvement. Experimental data have been reproduced by means of a 1-dimensional, time dependent, Collisional-Radiative impurity transport code, which simulates several C and O lines, continuum emission and radiated power. In standard RFX plasmas the typical diffusion coefficient is ~ 20 m2/s at the plasma centre decreasing to ~ 1 m2/s at the edge. Best simulations of the spectroscopic data during the enhancement confinement phases are obtained by expanding the low diffusion region at the edge from r/a= 0.9 to r/a=0.8±0.05 and shrinking the neutral density profile at the edge. (literal)

Prodotto di

• Institute of ionized gas (IGI) (Istituto)

Autore CNR

• MARCO VALISA (Persona)
• PAOLO SCARIN (Persona)
• LORELLA CARRARO (Unità di personale interno)
• MARIA ESTER PUIATTI (Unità di personale interno)

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• Parole chiave di "Impurity transport during Pulsed Poloidal Current Drive experiment in the Reversed Field Pinch Experiment RFX" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• MARIA ESTER PUIATTI (Unità di personale interno)
• LORELLA CARRARO (Unità di personale interno)
• MARCO VALISA (Persona)
• PAOLO SCARIN (Persona)

Prodotto

• Institute of ionized gas (IGI) (Istituto)

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

• Plasma physics and controlled fusion (Rivista)

Insieme di parole chiave di

• Parole chiave di "Impurity transport during Pulsed Poloidal Current Drive experiment in the Reversed Field Pinch Experiment RFX" (Insieme di parole chiave)