Reversed Field Pinch Studies In The Madison Symmetric Torus
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Total Pages | : 18 |
Release | : 1993 |
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Download Reversed-field Pinch Studies in the Madison Symmetric Torus Book in PDF, Epub and Kindle
Studies of large-size (R = 1.5 m, a = 0.5 m), moderate current (I
Author | : D.J. DEN HARTOG |
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Total Pages | : |
Release | : 1990 |
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Download AN ENERGY CONFINEMENT STUDY OF THE MADISON SYMMETRIC TORUS REVERSED FIELD PINCH USING A THOMSON SCATTERING DIAGNOSTIC. Book in PDF, Epub and Kindle
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Download Madison Symmetric Torus (MST), University of Wisconsin, Madison Book in PDF, Epub and Kindle
Introduces the Madison Symmetric Torus (MST), a toroidal reversed field pinch device for the study of plasma physics and magnetic fusion energy research operating out of the Department of Physics at the University of Wisconsin-Madison. Describes the MST as a large RFP reversed field pinch with a minor radius of 0.52 m and a major radius of 1.5 m. Includes specifications of device and plasma parameters, answers to frequently asked questions, information for prospective graduate students, and related programs at UW-M. Lists senior staff of the Physics Department.
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Total Pages | : 16 |
Release | : 1990 |
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Download Global Confinement in the MST (Madison Symmetric Torus) Reversed Field Pinch Book in PDF, Epub and Kindle
Author | : Joshua Adam Reusch |
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Total Pages | : 222 |
Release | : 2011 |
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Download Measured and Simulated Election Thermal Transport in the Madison Symmetric Torus Reversed Field Pinch Book in PDF, Epub and Kindle
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Total Pages | : 13 |
Release | : 1990 |
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Download Edge Fluctuations in the MST (Madison Symmetric Torus) Reversed Field Pinch Book in PDF, Epub and Kindle
Edge magnetic and electrostatic fluctuations are measured in the Madison Symmetric Torus (MST) reversed field pinch. At low frequency (25 kHz), the mode number spectra of magnetic fluctuations agree very well with theoretical prediction for nonlinearly saturated tearing fluctuations resonant in the core. At high frequency (50 kHz to 100 kHz) the magnetic spectra broaden and the modes become resonant in the reversal region. Nonlinear phenomena are under experimental investigation. The low frequency fluctuations phase-lock together to produce a rotating localized disturbance. Bi-spectral analysis in frequency also reveals nonlinear three-wave mode-coupling at low frequency. Electrostatic fluctuations are substantial and do not appear to obey a Boltzmann relation (i.e. e{tilde {phi}}/kT{sub e} {tilde p}{sub e}/p{sub e} where {tilde {phi}} and {tilde p}{sub e} are the fluctuating potential and pressure, respectively). From measurements of the fluctuating density, temperature, and potential we infer that the electrostatic fluctuation induced transport of particles and energy can be substantial. 13 refs., 11 figs.
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Total Pages | : 892 |
Release | : 1994 |
Genre | : Aeronautics |
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Download Scientific and Technical Aerospace Reports Book in PDF, Epub and Kindle
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Total Pages | : 120 |
Release | : 1994 |
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Download Measurement of Magnetic Turbulence Structure and Nonlinear Mode Coupling of Tearing Fluctuations in the Madison Symmetric Torus Reversed Field Pinch Edge Book in PDF, Epub and Kindle
Linear and nonlinear magnetohydrodynamic (MHD) stability of current-driven modes are studied in the MST reversed field pinch. Measured low frequency (f
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Total Pages | : 30 |
Release | : 1996 |
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Download Fivefold Confinement Time Increase in the Madison Symmetric Torus Using Inductive Poloidal Current Drive Book in PDF, Epub and Kindle
Current profile control is employed in the Madison Symmetric Torus reversed field pinch to reduce the magnetic fluctuations responsible for anomalous transport. An inductive poloidal electric field pulse is applied in the sense to flatten the parallel current profile, reducing the dynamo fluctuation amplitude required to sustain the equilibrium. This technique demonstrates a substantial reduction in fluctuation amplitude (as much as 50%), and improvement in energy confinement (from 1 ms to 5 ms); a record low fluctuation (0.8%) and record high temperature (615 eV) for this device were observed simultaneously during current drive experiments. Plasma beta increases by 50% and the Ohmic input power is three times lower. Particle confinement improves and plasma impurity contamination is reduced. The results of the transient current drive experiments provide motivation for continuing development of steady-state current profile control strategies for the reversed field pinch.
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Total Pages | : 782 |
Release | : 1995 |
Genre | : Power resources |
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Download Energy Research Abstracts Book in PDF, Epub and Kindle