ISSN:
1572-9591
Keywords:
tandem mirrors
;
fusion reactor
;
D-D fuel cycle
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Abstract Requirements for D-D barrier tandem mirror reactors are calculated from an equilibrium power balance model. To obtain adequate plasmaQ and reasonable power density, axisymmetric configurations are required to decrease barrier length and radial transport and to increase central cell beta. We find that for a reactor producing 900 MW net electric power from aQ=6.5 plasma, a central cell length of 225 m, maximumB of 15 T, and neutral beam injection energy of 700 keV are necessary. In addition to high central cell beta (∼70%), high barrier beta (∼40%) is needed to allow the ECRH power required to reduce the barrier potential. Using too much barrier ECRH power results in a decrease inQ. Nuclear elastic scattering of fusion products plays an important role in the overall plasma power balance. When nuclear scattering and coulomb scattering are included, the plasmaQ value is increased by more than 40% compared to the case when coulomb scattering alone is considered.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01052390
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