Plasma rotation, dynamo, and nonlinear coupling in the reversed field pinch
نویسندگان
چکیده
منابع مشابه
Dynamo-free plasma in the reversed-field pinch: Advances in understanding the reversed-field pinch improved confinement mode
J. K. Anderson, J. Adney, A. Almagri, A. Blair, D. L. Brower, M. Cengher, B. E. Chapman, S. Choi, D. Craig, D. R. Demers, D. J. Den Hartog, B. Deng, W. X. Ding, F. Ebrahimi, D. Ennis, G. Fiksel, C. B. Forest, P. Franz, J. Goetz, R. W. Harvey, D. Holly, B. Hudson, M. Kaufman, T. Lovell, L. Marrelli, P. Martin, K. McCollam, V. V. Mirnov, P. Nonn, R. O’Connell, S. Oliva, P. Piovesan, S. C. Prager,...
متن کاملMeasurement of core velocity fluctuations and the dynamo in a reversed-field pinch
Plasma flow velocity fluctuations have been directly measured in the high temperature magnetically confined plasma in the Madison Symmetric Torus (MST) Reversed-Field Pinch (RFP) [R. N. Dexter et al., Fusion Tech. 19, 131 (1991)]. These measurements show that the flow velocity fluctuations are correlated with magnetic field fluctuations such that the electromotive force v ̃ H B ̃ approximately ba...
متن کاملGlobal confinement and discrete dynamo activity in the MST reversed-field pinch
Results obtained on the Madison Symmetric Torus (MST) reversed-field pinch [Fusion Technol. 19, 13 1 ( 199 1) ] after installation of the design poloidal field winding are presented. Values of Be, = 2~, nd) T&/B s (a) 12% are achieved in low-current (I = 220 kA) operation; here, n, and T, are central electron density and temperature, and Be (a) is the poloidal magnetic field at the plasma edge....
متن کاملSpectroscopic observation of fluctuation-induced dynamo in the edge of the reversed-field pinch.
The fluctuation-induced dynamo has been investigated by direct measurement of v and b in the edge of a reversed-field pinch and is found to be significant in balancing Ohm's law. The velocity fluctuations producing the dynamo emf have poloidal mode number m = 0, consistent with MHD calculations and in contrast with the core m = 1 dynamo. The velocity fluctuations exhibit the parity rela...
متن کاملMeasurements of the MHD dynamo in the quasi-single-helicity reversed-field pinch.
The first experimental study of the MHD dynamo in a quasi-single-helicity (QSH) reversed-field pinch toroidal plasma is presented. In QSH plasmas, a dominant wave number appears in the velocity fluctuation spectrum. This velocity component extends throughout the plasma volume and couples with magnetic fluctuations to produce a significant MHD dynamo electric field. The narrowing of the velocity...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plasma Physics and Controlled Fusion
سال: 1995
ISSN: 0741-3335,1361-6587
DOI: 10.1088/0741-3335/37/11a/021