Ontology type: schema:ScholarlyArticle
2017-11-15
AUTHORSG. M. Batanov, V. D. Borzosekov, L. V. Kolik, E. M. Konchekov, D. V. Malakhov, A. E. Petrov, K. A. Sarksyan, V. D. Stepakhin, N. K. Kharchev
ABSTRACTCorrelation between short-wavelength (k⊥ ≈ 20–30 cm–1) and long-wavelength (k⊥ ≈ 1–2 cm–1) plasma density fluctuations in two poloidal cross sections of the stellarator chamber separated by 1/14 or 5/14 of the torus perimeter was studied using collective scattering of radiation of two 75-GHz gyrotrons and radiation of a 37-GHz Doppler reflectometer at an ECR heating power density of 1.6–3.2 MW/m3. It is found that excitation of turbulent fluctuations is bursty in character and that fluctuations excited in different L-2M cross sections are uncorrelated. It is shown that the energy of turbulent fluctuations is modulated by a low frequency of 5–20 kHz. An idea is put forward that anomalous transport is toroidally inhomogeneous. More... »
PAGES1052-1064
http://scigraph.springernature.com/pub.10.1134/s1063780x17110034
DOIhttp://dx.doi.org/10.1134/s1063780x17110034
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