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Title: A new, explicitly collisional contribution to the gyroviscosity and the radial electric field in a collisional tokamak

Abstract

An additional contribution to the ion viscosity for a collisional plasma is evaluated and found to be the same order as other temperature gradient terms in the collisional perpendicular viscosity. The new contribution arises because of an explicitly collisional portion of the ion distribution function. The evaluation of the Pfirsch-Schlueter radial electric field in a collisional tokamak of arbitrary cross section is extended to retain the new contribution. In a spherical tokamak this new contribution must be retained in determining the radial electric field, while in a conventional tokamak it is small by 1/q{sup 2}, where q is the safety factor.

Authors:
;  [1];  [2]
  1. MIT Plasma Science and Fusion Center, Cambridge, Massachusetts 02139 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
20782369
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 12; Journal Issue: 11; Other Information: DOI: 10.1063/1.2136355; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CHARGED-PARTICLE TRANSPORT; COLLISIONAL PLASMA; DISTRIBUTION FUNCTIONS; ELECTRIC FIELDS; ELECTRON COLLISIONS; ELECTRON TEMPERATURE; ION COLLISIONS; ION TEMPERATURE; IONS; PLASMA CONFINEMENT; SPHERICAL CONFIGURATION; TEMPERATURE GRADIENTS; TOKAMAK DEVICES; VISCOSITY

Citation Formats

Catto, P.J., Simakov, A.N., and Los Alamos National Laboratory, Los Alamos, New Mexico 87545. A new, explicitly collisional contribution to the gyroviscosity and the radial electric field in a collisional tokamak. United States: N. p., 2005. Web. doi:10.1063/1.2136355.
Catto, P.J., Simakov, A.N., & Los Alamos National Laboratory, Los Alamos, New Mexico 87545. A new, explicitly collisional contribution to the gyroviscosity and the radial electric field in a collisional tokamak. United States. doi:10.1063/1.2136355.
Catto, P.J., Simakov, A.N., and Los Alamos National Laboratory, Los Alamos, New Mexico 87545. Tue . "A new, explicitly collisional contribution to the gyroviscosity and the radial electric field in a collisional tokamak". United States. doi:10.1063/1.2136355.
@article{osti_20782369,
title = {A new, explicitly collisional contribution to the gyroviscosity and the radial electric field in a collisional tokamak},
author = {Catto, P.J. and Simakov, A.N. and Los Alamos National Laboratory, Los Alamos, New Mexico 87545},
abstractNote = {An additional contribution to the ion viscosity for a collisional plasma is evaluated and found to be the same order as other temperature gradient terms in the collisional perpendicular viscosity. The new contribution arises because of an explicitly collisional portion of the ion distribution function. The evaluation of the Pfirsch-Schlueter radial electric field in a collisional tokamak of arbitrary cross section is extended to retain the new contribution. In a spherical tokamak this new contribution must be retained in determining the radial electric field, while in a conventional tokamak it is small by 1/q{sup 2}, where q is the safety factor.},
doi = {10.1063/1.2136355},
journal = {Physics of Plasmas},
number = 11,
volume = 12,
place = {United States},
year = {Tue Nov 15 00:00:00 EST 2005},
month = {Tue Nov 15 00:00:00 EST 2005}
}