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| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedade Brasileira de Física
2003
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| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=46413573043 |
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Table of Contents:
- Double-Helix Current Drive Revisited Roberto A. Clemente Ricardo Farengo Física, Astronomía y Matemáticas The conditions required for efficient current drive in a weakly resistive plasma column, subject to a double helix traveling magnetic field, are examined in detail by using a simple non-linear Ohm¿s law for the plasma. In agreement with previous numerical work on the subject by Bertram [5], it is shown that field penetration is indeed strongly limited when large external bias longitudinal magnetic fields are used. However, there is a range of small external bias fields that allow for significant penetration when reasonable driving fields are used. This should be of interest for sustaining reversed-field pinches and toroidal screw pinches. 2003 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413573043 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4 Vol.33