Transport processes in reversed-field-pinch plasmas: inconsistency with the self-organized-criticality paradigm.
A statistical analysis of the anomalous particle flux in the edge region of the RFX experiment has revealed that laminar times between bursts, which account for more than 50% of the losses, have a power law distribution and that flux fluctuations are not self-similar. These properties are found in contrast with a wide class of self-organized-criticality models so that it is concluded that there is no experimental evidence of avalanchelike process occurrence in the plasma of RFX.
Antoni
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Consorzio RFX, Associazione EURATOM-ENEA per la fusione, corso Stati Uniti 4, 35127 Padova, Italy.
Carbone
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V
Cavazzana
R
R
Regnoli
G
G
Vianello
N
N
Spada
E
E
Fattorini
L
L
Martines
E
E
Serianni
G
G
Spolaore
M
M
Tramontin
L
L
Veltri
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P