SUMMARY
The primary distinction between a conventional tokamak and a spherical tokamak (ST) lies in the aspect ratio, which is the ratio of the major radius to the minor radius of the tokamak plasma. As the aspect ratio decreases to around 2.0 or below, the plasma shape transitions from a doughnut-like configuration to a more spherical form, particularly when vertical elongation is present. Contrary to some claims, spherical tokamaks do not utilize reverse field configurations; this characteristic is associated with spheromaks, not STs.
PREREQUISITES
- Understanding of tokamak physics
- Knowledge of plasma confinement concepts
- Familiarity with aspect ratio in plasma physics
- Basic principles of magnetic field configurations
NEXT STEPS
- Research the principles of plasma confinement in tokamaks
- Study the implications of aspect ratio on plasma stability
- Explore the differences between spheromaks and spherical tokamaks
- Learn about magnetic field configurations in fusion reactors
USEFUL FOR
Physicists, engineers, and students interested in nuclear fusion technology, particularly those focusing on plasma physics and tokamak design.