Classical Diffusion of a Stationary Toroidal Plasma

1969 ◽  
Vol 12 (1) ◽  
pp. 255 ◽  
Author(s):  
John L. Johnson
Keyword(s):  
Toroidal Plasma ◽  
Classical Diffusion

Classical diffusion of a stationary toroidal plasma

1971 ◽  
Vol 13 (10) ◽  
pp. 905-912 ◽  
Author(s):  
E K Maschke
Keyword(s):  
Toroidal Plasma ◽  
Classical Diffusion

QELSS diffusion data for moderately broad molar mass distribution polymer samples compared with data from classical gradient techniques

1989 ◽  
Vol 54 (7) ◽  
pp. 1821-1829
Author(s):  
Bedřich Porsch ◽  
Simon King ◽  
Lars-Olof Sundelöf
Keyword(s):  
Diffusion Coefficient ◽  
Mass Distribution ◽  
Molar Mass ◽  
Molar Mass Distribution ◽  
Diffusion Data ◽  
Mass Distributions ◽  
Classical Diffusion ◽  
Polydisperse Polymer

The differences between the QELSS and classical diffusion coefficient of a polydisperse polymer resulting from distinct definitions of experimentally accessible average values are calculated for two assumed specific forms of molar mass distributions. Predicted deviations are compared with the experiment using NBS 706 standard polystyrene. QELSS Dz of this sample relates within 2-4% to the classical diffusion coefficient, if the Schulz-Zimm molar mass distribution is assumed to be valid. In general, differences between the height-area and QELSS diffusion coefficient of about 20% may be found for Mw/Mn ~ 2, and this value may increase above 35%, if strongly tailing molar mass distribution pertains to the sample.

scholarly journals The upgraded TOMAS device: A toroidal plasma facility for wall conditioning, plasma production, and plasma–surface interaction studies

2021 ◽  
Vol 92 (2) ◽  
pp. 023506
Author(s):  
A. Goriaev ◽  
T. Wauters ◽  
S. Möller ◽  
R. Brakel ◽  
S. Brezinsek ◽  
...  
Keyword(s):  
Surface Interaction ◽  
Plasma Production ◽  
Plasma Surface ◽  
Toroidal Plasma ◽  
Interaction Studies

Equilibrium of a toroidal plasma inside two concentric conducting shells

1973 ◽  
Vol 16 (8) ◽  
pp. 1329 ◽  
Author(s):  
J. C. Hosea
Keyword(s):  
Toroidal Plasma

Toroidal plasma configuration with anisotropic pressure

1987 ◽  
Vol 38 (2) ◽  
pp. 209-222 ◽  
Author(s):  
Hussain M. Rizk
Keyword(s):  
General Expression ◽  
Magnetic Surface ◽  
Anisotropic Pressure ◽  
Mean Velocity ◽  
Magnetohydrodynamic Equation ◽  
Toroidal Plasma ◽  
Hydrodynamic Calculations ◽  
The Mean ◽  
The One ◽  
Plasma Configuration

The relation between various surface quantities required in hydrodynamic calculations, and the relation between the parallel and perpendicular currents in an arbitrary magnetic toroidal plasma configuration with scalar pressure, are generalized to the case of anisotropic pressure. Magnetic co-ordinates for hydrodynamic equilibria in this configuration are defined. A general expression for the mean velocity of diffusion through a magnetic surface, on the basis of the one-fluid magnetohydrodynamic equation with anisotropic pressure, is derived.

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