Systems and methods for radial and axial stability control of an frc plasma
AssigneeTae Technologies, Inc.
InventorJesus Antonio Romero Gonzalez
Life of this patent
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Abstract
Systems and methods are provided that facilitate stability of an FRC plasma in both radial and axial directions and axial position control of an FRC plasma along the symmetry axis of an FRC plasma chamber. The systems and methods exploit an axially unstable equilibria of the FRC plasma to enforce radial stability, while stabilizing or controlling the axial instability. The systems and methods provide feedback control of the FRC plasma axial position independent of the stability properties of the plasma equilibrium by acting on the voltages applied to a set of external coils concentric with the plasma and using a non-linear control technique.
Claims15
A system for stabilizing a field reversed configuration (FRC) plasma within a confinement chamber comprising
- a confinement chamber,
- first and second divertors coupled to first and second ends of the confinement chamber,
- first and second axial plasma guns operably coupled to the first and second divertors, the first and second formation sections and the confinement chamber,
- a plurality of neutral atom beam injectors coupled to the confinement chamber and oriented to inject neutral atom beams toward a mid-plane of the confinement chamber at an angle less than normal to a longitudinal axis of the confinement chamber,
- a magnetic system comprising a plurality of quasi-dc coils positioned around the confinement chamber, the first and second formation sections, and the first and second divertors, first and second set of quasi-dc mirror coils positioned between the confinement chamber and the first and second formation sections, and first and second mirror plugs position between the first and second formation sections and the first and second divertors,
- a gettering system coupled to the confinement chamber and the first and second divertors,
- first and second set of radial magnetic field coils configured to generate first and second radial magnetic fields within chamber, and
- a control system operably coupled to the quasi-dc coils and the first and second radial magnetic field coils, the control system including a processor coupled to a non-transitory memory comprising a plurality of instruction that when executed causes the processor to tune the magnetic field generated by the plurality of quasi-dc coils and the first and second radial field coils to stabilize an FRC plasma in a radial direction normal to a longitudinal axis of the chamber to position the FRC plasma axisymmetric about the longitudinal axis and in an axial direction along the longitudinal axis of the confinement chamber.
The system of claim 7 further comprising third and fourth divertors coupled to the first and second diametrically opposed FRC formation.
Dependencies are inferred from the claim text.