Abstract
The radial electric field of small size divertor tokamak in the vicinity of separtrix is simulated by using B2-SOLPS5.0 2D code, in which the most complete system of transport equations (Rozhansky et al., Nucl Fusion, 41:4, 2001) is solved including all the important perpendicular current and E × B drifts. Simulations demonstrated the following results: (a) It is shown that in the vicinity of the separatrix, the radial potential profile is determined by perpendicular currents (b) since, due to the pressure asymmetry, radial diamagnetic current integrated over the closed flux surface is not automatically zero, additional radial currents balance the diamagnetic current and make the average net current zero. (c) On the closed flux surfaces far from separetrix, where the pressure is almost constant, the calculated parallel currents (toroidal current) agree with Pfirsch–Schlueter currents.
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References
V.A. Rozhansky, M. Tendler, Rev. Plasma Phys. 19, 147 (1996)
V.A. Rozhansky, M. Tendler, Comments Plasma Phys. Control. Fusion 13, 191 (1990)
I.H. Hutchinson, Plasma Phys. Control. Fusion 37, 389 (1995)
J.A. Boedo, in Controlled fusion and plasma physics (proc. 26th Eur. Conf.Maastrich, 1999), vol. 3 J part (European Physical Society, Geneva 63, 1999)
T.D. Rognlien, D.D. Ryutov, Contrib. Plasma Phys. 38, 152 (1998)
T.D. Rognlien, D.D. Ryutov, Plasma Phys. Rep. 25, 943 (1999)
T.D. Rognlien, D.D. Ryutov, N. Mattor, Chech. J. Phys. 48(Suppl S2), 201, (1998)
T.D. Rognlien, D.D. Ryutov, N. Mattor, G.D. Porter, Phys. Plasmas 6, 1851 (1999)
V.A. Rozhansky, S.P. Voskoboynikov, E.G. Kaveeva, D.P. Coster, R. Schneider, Nucl. Fusion 41, 4 (2001)
V.A. Rozhansky, D.P. Coster, R. Schneider, B. Braams, P. Xantopoulos, J. Nucl. Mater. 313–316, 909 (2003)
S.I. Braginskii, in Reviews of Plasma Physics, vol.1, ed. by M.A. Leontovich (Consultants Bureau, New York, 1965), p. 205
V.A. Rozhansky, S.P. Voskoboynikov, E.G. Kaveeva, D.P. Coster, R. Schneider, 26th EPS conf. on Contr. Fusion and Plasma Physics, vol. 23, Maastrich, 14–18 June 1999, ECA, pp. 1749–1752
E.W. McDaniel, E.A. Mason, The Mobility and Diffusion of Ions in Gases (Wiley, New York, 1973)
V. Rozhansky, L. Tsendin, Collision Transport in Partially Ionized Plasma. Moscow, Energoatomized at (in Russian) (1998)
F. Hinton, Y.B. Kim, Nucl. Fusion 34, 889 (1984)
S.P. Hirshman, D.J. Sigmar, Nucl. Fusion 21, 1079 (1980)
A.H. Bekheit, Egypt. J. Phys. 37(1), 65 (2006)
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Bekheit, A.H. Perpendicular Conductivity and Self-Consistent Electric Fields in Small Size Divertor Tokamak Plasma Edge. J Fusion Energ 27, 321–326 (2008). https://doi.org/10.1007/s10894-008-9133-6
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DOI: https://doi.org/10.1007/s10894-008-9133-6