Results 41 to 50 of about 73 (64)
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Microwave heating of the ELMO Bumpy Torus relativistic electron ring
The Physics of Fluids, 1981A model for microwave heating of electron rings in the ELMO Bumpy Torus configuration is analyzed using a relativistically correct quasi-linear formulation. The spatial locations of heating by the different electron-cyclotron harmonics are calculated. The steady-state ring energy and the microwave power required to sustain the rings are determined by ...
Hamasaki, S. +4 more
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Toroidal MHD equilibrium of the Elmo Bumpy Torus
Nuclear Fusion, 1980Analytic toroidal equilibria of the Elmo Bumpy Torus configuration are calculated by means of an asymptotic expansion in the amplitude of the bumpiness. Equilibria containing a magnetic well are found where β is smaller than that in a high-β stellarator but comparable to or higher than that in a high-β tokamak or conventional stellarator.
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Radial transport in the ELMO Bumpy Torus in collisional regimes
Nuclear Fusion, 1979Neutral and charged-particle densities and temperatures are calculated as functions of radius for the toroidal plasma in the ELMO Bumpy Torus (EBT). Energy-dependent ionization and charge exchange rates, am bipolar diffusion, and self-consistent radial electric field profiles are included.
E.F. Jaeger, C.L. Hedrick
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Macroscopic stability and beta limit in the ELMO Bumpy Torus
Nuclear Fusion, 1979Magnetohydrodynamic stability limits are determined for the ELMO Bumpy Torus. The relativistic hot electron annuli are considered to be rigid, modifying the magnetic field, but not interacting with the instability. A modified energy principle is used, and the stability problem is reduced to determination of the eigenvalues of an ordinary differential ...
D.B. Nelson, C.L. Hedrick
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Numerical Modeling of Elmo Bumpy Torus Plasmas
Nuclear Technology - Fusion, 1983The extrapolation of the ELMO Bumpy Torus (EBT) confinement concept to the reactor regime involves many uncertainties, two of the most critical unknowns being: (a) the power required to sustain the steady-state high-beta annuli necessary for core plasma stabilization and (b) the propagation of ion cyclotron resonance heating (ICRH) waves in an ...
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Proof-of-principle test for Elmo Bumpy Torus
Physics Today, 1979We don't know whether he named it after St. Elmo's fire, or after his clever Uncle Elmo. Ray Dandl, who guided the evolution of the Elmo Bumpy Torus over the last two decades at the Oak Ridge National Laboratory, won't tell. The Elmo Bumpy Torus is something of a hybrid between toroidal and mirror fusion-reactor designs.
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Effects of hot electrons on magnetohydrodynamic modes in ELMO Bumpy Torus
The Physics of Fluids, 1980The effect of hot electrons on magnetohydrodynamic instabilities is studied using a fully electromagnetic, finite β, Vlasov–Maxwell model consisting of three species in an inhomogeneous slab geometry with gravity. If no hot electrons are present, the Vlasov model agrees with well-known results from the magneto-hydrodynamic model.
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Neoclassical Transport in ELMO Bumpy Torus
Physical Review Letters, 1978E. F. Jaeger, D. A. Spong, C. L. Hedrick
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