Toroidal Effect on Magnetic Line of Force in Non-Planar Helical Magnetic Axis System (Asperator NP-3)
Abstract
The behavior of magnetic line of force in a stellarator-type toroidal device with three dimensional helical magnetic axis (Asperator NP-3) is investigated both numerically and analytically, especially taking into account of the toroidal perturbation. To avoid or decrease the influence of the crucial 2/3 resonance, the absolute value of ellipticity of magnetic surface \varepsilon should be over 1/3, or both \varepsilon and triangularity Q should be near zero simultaneously. The swing δ employed in the helical windings is revealed to be very effective to the structure of magnetic surface.
- Publication:
-
Journal of the Physical Society of Japan
- Pub Date:
- April 1980
- DOI:
- 10.1143/JPSJ.48.1323
- Bibcode:
- 1980JPSJ...48.1323H
- Keywords:
-
- Reactor Design;
- Stellarators;
- Tokamak Devices;
- Toroidal Plasmas;
- Helical Windings;
- Magnetic Field Configurations;
- Electronics and Electrical Engineering