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Plasma Physics papers

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Iso-topological relaxation, coherent structures, and Gaussian turbulence in two dimensional magnetohydrodynamics
The long-time relaxation of ideal two dimensional magnetohydrodynamic turbulence subject to the conservation of two infinite families of constants of motion---the magnetic and the "cross"…
M. B. Isichenko, A. V. GruzinovSep 6, 1996
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Theory of the Spatio-Temporal Dynamics of Transport Bifurcations
The development and time evolution of a transport barrier in a magnetically confined plasma with non-monotonic, nonlinear dependence of the anomalous flux on mean gradients is analyzed. Upon…
V. B. Lebedev, P. H. DiamondSep 4, 1996
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Magnetohydrodynamic equilibria of a cylindrical plasma with poloidal mass flow and arbitrary cross section shape
The equilibrium of a cylindrical plasma with purely poloidal mass flow and cross section of arbitrary shape is investigated within the framework of the ideal MHD theory. For the system under…
G. N. Throumoulopoulos, G. PantisAug 27, 1996
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On the conical refraction of hydromagnetic waves in plasma with anisotropic thermal pressure: general consideration
A phenomenon analogous to the conical refraction well-known in the crystalooptics and crystaloacoustics is considered for the magnetohydrodynamical waves in a collisionless plasma with anisotropic…
David TsiklauriAug 3, 1996
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Localized structures of electromagnetic waves in hot electron-positronplasmas
The dynamics of relativistically strong electromagnetic (EM) wave propagation in hot electron-positron plasma is investigated. The possibility of finding localized stationary structures of EM waves…
S. Kartal, N. Tsintsadze, V. I. BerezhianiJul 4, 1996
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Ionization equilibrium of hot hydrogen plasma
The hydrogen plasma is studied at temperatures T ~ 104 - 106 K using the free energy minimization method. A simple analytic free energy model is proposed which is accurate at densities up to 1 g/cc…
A. Y. PotekhinJul 1, 1996
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Special-relativistic model flows of viscous fluid
Two, the most simple cases of special-relativistic flows of a viscous, incompressible fluid are considered: plane Couette flow and plane Poiseuille flow. Considering only the regular motion of the…
A. D. RogavaApr 14, 1996
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Relativistic ponderomotive force, uphill acceleration, and transition to chaos
Starting from a covariant cycle-averaged Lagrangian the relativistic oscillation center equation of motion of a point charge is deduced and analytical formulae for the ponderomotive force in a…
D. Bauer, P. Mulser, W. -H. SteebApr 4, 1996
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Electrostatic Ion Perturbations in Unmagnetized Plasma Shear Flow
The electrostatic perturbations in an unmagnetized, non-isothermal (TiTe) electron-ion plasma shear flow are considered. New physical effects, arising due to the non-normality of linear…
A. D. Rogava, G. D. Chagelishvili, V. I. BerezhianiApr 2, 1996
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Mode Coupling in Space and Time Varying Anisotropic Absorbing Plasmas
A four dimensional systematic mathematical approach for investigating propagation and coupling of wave modes in a slowly varying (in all space directions and time) anisotropic, absorbing plasma is…
Bijan Sheikholeslami SabzevariFeb 22, 1996
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Negative-Energy Perturbations in Circularly Cylindrical Equilibria within the Framework of Maxwell-Drift Kinetic Theory
The conditions for the existence of negative-energy perturbations (which could be nonlinearly unstable and cause anomalous transport) are investigated in the framework of linearized collisionless…
G. N. Throumoulopoulos, D. PfirschFeb 20, 1996
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Influence of wave frequency variation on anomalous cyclotron resonance interaction of energetic electrons with finite amplitutude ducted whistler-mode wave
The influence of wave frequency variation on the anomalous cyclotron resonance ω=ωBe+kv\| interaction (ACRI) of energetic electrons with a ducted finite amplitude whistler-mode wave…
N. S. Erokhin, N. N. Zolnikova, M. J. Rycroft et al.Feb 5, 1996
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Experimental Divertor Similarity Database Parameters
A set of experimentally-determined dimensionless parameters is proposed for characterizing the regime of divertor operation. The objective is to be able to compare as unambiguously as possible the…
I. H. Hutchinson, B. LaBombard, B. LipschultzDec 28, 1995
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Power Balance in the ITER Plasma and Divertor
It is planned to use atomic processes to spread out most of the heating power over the first wall and side walls to reduce the heat loads on the plasma facing components in ITER to ~ 50 MW.…
D. E. Post, B. Braams, J. Mandrekas et al.Dec 12, 1995
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On the conical refraction of hydromagnetic waves in plasma with anisotropic thermal pressure
A phenomenon analogous to the conical refraction widely known in the crystalooptics and crystaloacoustics is discovered for the magnetohydrodynamical waves in the collisionless plasma with…
David TsiklauriNov 18, 1995
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A New Look at the Landau's Theory of Spreading and Damping of Waves in Collisionless Plasmas
The theory of plasma waves and Landau damping in Maxwellian plasmas, Landau's ``rule of pass around poles'' include doubtful statements, particularly related to an artificial…
V. N. SoshnikovNov 11, 1995
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Detailed Radiative Transport Modeling of a Radiative Divertor
An effective radiative divertor maximizes the utilization of atomic processes to spread out the energy deposition to the divertor chamber walls and to reduce the peak heat flux. Because the mixture…
A. S. Wan, H. E. Dalhed, H. A. Scott et al.Jul 11, 1995
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Studies of Plasma Detachment Using a One Dimensional Model for Divertor Operation
To characterize the conditions required to reach advanced divertor regimes, a one-dimensional computational model has been developed based on a coordinate transformation to incorporate…
R. A. Vesey, D. E. Post, G. BatemanJul 11, 1995
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A Review of Recent Developments in Atomic Processes for Divertors and Edge Plasmas
The most promising concepts for power and particle control in tokamaks and other fusion experiments rely upon atomic processes to transfer the power and momentum from the edge plasma to the plasma…
D. E. PostJun 19, 1995
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Analytic Criteria for Power Exhaust in Divertors due to Impurity Radiation
Present divertor concepts for next step experiments such ITER and TPX rely upon impurity and hydrogen radiation to transfer the energy from the edge plasma to the main chamber and divertor chamber…
D. Post, N. Putvinskaya, F. W. Perkins et al.Jun 19, 1995
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Radiation Rates for Low Z Impurities in Edge Plasmas
The role of impurity radiation in the reduction of heat loads on divertor plates in present experiments such as DIII-D, JET, JT-60, ASDEX, and Alcator C-Mod, and in planned experiments such as ITER…
R. Clark, J. Abdallah, D. PostJun 19, 1995
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Calculations of Energy Losses due to Atomic Processes in Tokamaks with Applications to the ITER Divertor
Reduction of the peak heat loads on the plasma facing components is essential for the success of the next generation of high fusion power tokamaks such as the International Thermonuclear Experimental…
D. Post, J. Abdallah, R. E. H. Clark et al.Jun 19, 1995
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Stellarator News, Issue 39, May 1995
Special Issue: New Stellarators New stellarators are being constructed throughout the world as part of a well-coordinated international program. This issue concentrates on the engineering and…
James A. RomeMay 27, 1995
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Narrowing of Bennett Hole in Collisional Plasma
The profile of a Bennett hole induced by laser field in ionic distribution in collisional plasma is calculated. Influence of Chandrasekhar's dependence of coefficients of velocity space transport…
E. V. Podivilov, D. A. Shapiro, M. G. StepanovMar 30, 1995
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Stellarator News, Issue 38, March 1995
Stellarator News, an international journal of the stellarator community, is Published by Fusion Energy Division, Oak Ridge National Laboratory, James A. Rome, Editor In the March 1995 issue . . .…
James A. RomeMar 15, 1995
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