caa a22 4500 386367639 CHVBK 20180307111941.0 cr unu---uuuuu 161130e198908 xx s 000 0 eng 10.1017/S0022377800014227 doi S0022377800014227 pii (NATIONALLICENCE)cambridge-10.1017/S0022377800014227 Numerical determination of the ambipolar electric field in a stellarator-reactor plasma [Elektronische Daten] A numerical parametric study of the radial ambipolar electric field in a stellarator reactor has been undertaken. With the numerical neoclassical code FLOCS (Flow Code for Stellarators), which is capable of handling both ions and electrons of all relevant kinetic energies, the radial ambipolar field (Er)AMB is determined from the algebraic condition that ion and electron fluxes are equal. As expected, the potential is of the same order of magnitude as the temperature. Somewhat surprisingly at first sight, however, the potential does not change much with the temperature (in the parameter range under consideration), being somewhat insensitive to moderate variations of T. An explanation for this behaviour is presented. Finally, the radial particle fluxes, consistent with the obtained (Er)AMB, and the particle confinement time are computed. Copyright © Cambridge University Press 1989 D'Haeseleer W. D. Torsatron/Stellarator Laboratory, University of Wisconsìn-Madison, Madison, Wisconsin 53706, U.S.A. Hitchon W. N. G. Torsatron/Stellarator Laboratory, University of Wisconsìn-Madison, Madison, Wisconsin 53706, U.S.A. Shohet J. L. Torsatron/Stellarator Laboratory, University of Wisconsìn-Madison, Madison, Wisconsin 53706, U.S.A. Journal of Plasma Physics Cambridge University Press 42/1(1989-08), 133-151 0022-3778 42:1<133 1989 42 PLA https://doi.org/10.1017/S0022377800014227 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022377800014227 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- D'Haeseleer W. D. Torsatron/Stellarator Laboratory, University of Wisconsìn-Madison, Madison, Wisconsin 53706, U.S.A NATIONALLICENCE 700 1- Hitchon W. N. G. Torsatron/Stellarator Laboratory, University of Wisconsìn-Madison, Madison, Wisconsin 53706, U.S.A NATIONALLICENCE 700 1- Shohet J. L. Torsatron/Stellarator Laboratory, University of Wisconsìn-Madison, Madison, Wisconsin 53706, U.S.A NATIONALLICENCE 773 0- Journal of Plasma Physics Cambridge University Press 42/1(1989-08), 133-151 0022-3778 42:1<133 1989 42 PLA CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge