Intermittent transport in the scrape-off layer of the SINP tokamak

Journal Article · Fri Sep 15 00:00:00 EDT 2006 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2356481· OSTI ID:20860253

Saha, S K; Chowdhury, S ^[1]

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1. Plasma Physics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata-700064 (India)

Plasma structures, localized in the two-dimensional poloidal cross section propagating radially and poloidally, have been detected in the scrape-off layer of the SINP tokamak. Structures with densities both higher and lower than the density of the background plasma are present, with electron temperatures higher and lower, respectively, than that of the background plasma. These are responsible for the large and sporadic bursts of particle flux to the wall, amounting to 30%-40% of the total cross-field flux. These intermittent structures also cause the probability distribution function of the fluctuations to deviate from the Gaussian behavior, especially away from the limiter.

• OSTI ID: 20860253
• Journal Information: Physics of Plasmas, Vol. 13, Issue 9; Other Information: DOI: 10.1063/1.2356481; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DISTRIBUTION FUNCTIONS
ELECTRON TEMPERATURE
FLUCTUATIONS
GAUSS FUNCTION
ION TEMPERATURE
LIMITERS
PLASMA
PLASMA CONFINEMENT
PLASMA DENSITY
PLASMA SCRAPE-OFF LAYER
PROBABILITY
RADIATION TRANSPORT
SINP TOKAMAK
TWO-DIMENSIONAL CALCULATIONS
WALL EFFECTS