TY - JOUR
T1 - Reversed field pinch
T2 - Recent results
AU - Prager, S. C.
N1 - Funding Information:
I am happy to acknowledge contribution of recent Repute data from Dr. H. Toyama and Dr. H. Ji, TPE-lRM15 data from Dr. Y. Hirano, Extrap-Tl data from Dr. J. Drake, MHD results from Dr. D. Schnack, and MST results from many of my colleagues in the MST group. This work is supported in part by the U.S. Department of Energy.
PY - 1992
Y1 - 1992
N2 - The understanding of fluctuations and transport in the reversed field pinch (RFP) has been enhanced substantially. In this summary of results, the authors focus upon those which are not only useful for RFP understanding, but which are new to fusion plasma physics as a whole. Hence, in the area of fluctuations they report on new measurements of current density fluctuations, flow velocity fluctuations, and radial dependence of the wave vectors. These measurements all support the interpretation of the low frequency fluctuations as tearing modes, and show that high frequency fluctuations are localized, resonant turbulence. Three wave nonlinear coupling of the tearing modes have been measured directly using bispectral analysis of magnetic fluctuations. Qualitative agreement is obtained with predictions of nonlinear MHD.
AB - The understanding of fluctuations and transport in the reversed field pinch (RFP) has been enhanced substantially. In this summary of results, the authors focus upon those which are not only useful for RFP understanding, but which are new to fusion plasma physics as a whole. Hence, in the area of fluctuations they report on new measurements of current density fluctuations, flow velocity fluctuations, and radial dependence of the wave vectors. These measurements all support the interpretation of the low frequency fluctuations as tearing modes, and show that high frequency fluctuations are localized, resonant turbulence. Three wave nonlinear coupling of the tearing modes have been measured directly using bispectral analysis of magnetic fluctuations. Qualitative agreement is obtained with predictions of nonlinear MHD.
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U2 - 10.1088/0741-3335/34/13/018
DO - 10.1088/0741-3335/34/13/018
M3 - Article
AN - SCOPUS:0009702423
VL - 34
SP - 1895
EP - 1901
JO - Plasma Physics and Controlled Fusion
JF - Plasma Physics and Controlled Fusion
SN - 0741-3335
IS - 13
M1 - 018
ER -