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Magnetic diagnostics on the Maryland Centrifugal Experiment

Author: Seung H Choi
Requested Type: Poster Only
Submitted: 2006-12-18 14:30:21

Co-authors: R.Ellis, P.Guzdar, A.Hassam

Contact Info:
University of Maryland-MCX
9965 Alta Springs Way #202
Rockville, MD   20850

Abstract Text:
Magnetic fluctuation diagnostic coils have been installed to measure Bz component at the edge of MCX mid-plane. The MCX is an experiment to test the centrifugal confinement for controlled thermonuclear fusion. This evenly spaced 8 coils array allows resolution of magnetic perturbation up to m=4. The dominant modes show sawteeth-like fluctuations in regular plasma run in MCX which has the transition from H mode to O mode. We also directly measure the phase velocity of rotating magnetic fluctuation, and auto and cross correlation from each coil signal. The local dispersion relation gives us local m mode number which is the function of frequency. The data from edge coil array indicate that the magnetic fluctuation property varies considerably between various MCX operating modes. We represent data showing the property of magnetic fluctuation at the edge of MCX which is related to the instability inside MCX.

Choi Seung, Ellis Rick, Guzdar Parvez, Hassam Adil,

Characterization: A5


University of Maryland

Innovative Confinement Concepts Workshop
February 12-14, 2007
College Park, Maryland

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