Scattering of Radio Frequency Waves by Edge Density Blobs in Tokamak Plasmas

Journal Article · Fri Dec 23 00:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3664965· OSTI ID:21612482

Ram, A K ^[1]; Hizanidis, K; Kominis, Y ^[2]

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1. Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States)
2. National Technical University of Athens, Association EURATOM-Hellenic Republic, Zografou, Athens 15773 (Greece)

The density blobs and fluctuations present in the edge region of magnetic fusion devices can scatter radio frequency (RF) waves through refraction and diffraction. The scattering can diffuse the rays in space and in wave-vector space. The diffusion in space can make the rays miss their intended target region, while the diffusion in wave-vector space can broaden the wave spectrum and modify the wave damping and current profile.

• OSTI ID: 21612482
• Journal Information: AIP Conference Proceedings, Vol. 1406, Issue 1; Conference: 9. topical conference on radio frequency power in plasmas, Newport (United States), 1-3 Jun 2011; Other Information: DOI: 10.1063/1.3664965; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DAMPING
DIFFRACTION
DIFFUSION
ELECTRIC CURRENTS
FLUCTUATIONS
FOKKER-PLANCK EQUATION
PLASMA
RADIOWAVE RADIATION
REFRACTION
RF SYSTEMS
SPACE
TOKAMAK DEVICES
TURBULENCE
VECTORS
WAVE PROPAGATION
CLOSED PLASMA DEVICES
COHERENT SCATTERING
CURRENTS
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC RADIATION
EQUATIONS
PARTIAL DIFFERENTIAL EQUATIONS
RADIATIONS
SCATTERING
TENSORS
THERMONUCLEAR DEVICES
VARIATIONS