Generalized scale invariance and log-Poisson statistics for turbulence in the scrape-off-layer plasma in the T-10 tokamak

Journal Article · Wed Oct 15 00:00:00 EDT 2008 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X08100012· OSTI ID:21399967

Budaev, V P ^[1]

---

1. Russian Research Centre Kurchatov Institute (Russian Federation)

Results are presented from experimental observations of the statistical properties of scrape-off-layer plasma turbulence in the T-10 tokamak. The experimentally observed fluctuations in the fluxes and plasma density are intermittent in nature and obey a non-Gaussian statistics. The generalized property of plasma turbulence is its scale invariance. The experimental scalings for the moments of the distribution function of the difference in the amplitudes of fluctuations in the fluxes and plasma density are described by the log-Poisson model of strong turbulence. The self-similarity properties of turbulence that are associated with the topology of dissipative structures are investigated.

• OSTI ID: 21399967
• Journal Information: Plasma Physics Reports, Vol. 34, Issue 10; Other Information: DOI: 10.1134/S1063780X08100012; Copyright (c) 2008 Pleiades Publishing, Ltd.; ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DISTRIBUTION FUNCTIONS
FLUCTUATIONS
PLASMA DENSITY
PLASMA SCRAPE-OFF LAYER
SCALE INVARIANCE
STATISTICS
T-10 TOKAMAK
TURBULENCE
BOUNDARY LAYERS
CLOSED PLASMA DEVICES
FUNCTIONS
INVARIANCE PRINCIPLES
LAYERS
MATHEMATICS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
VARIATIONS