
doi: 10.2172/6959201
A method to maintain a steady-state spheromak configuration inductively using the S-1 Spheromak device is described. The S-1 Spheromak formation apparatus can be utilized to inject magnetic helicity continuously (C.W., not pulsed or D.C.) into the spheromak configuration after equilibrium is achieved in the linked mode of operation. Oscillation of both poloidal- and toroidal-field currents in the flux core (psi-phi Pumping), with proper phasing, injects a net time-averaged helicity into the plasma. Steady-state maintenance relies on flux conversion, which has been earlier identified. Relevant experimental data from the operation of S-1 are described. Helicity flow has been measured and the proposed injection scheme simulated. In a reasonable time practical voltages and frequencies can inject an amount of helicity comparable to that in the initial plasma. Plasma currents can be maintained or increased. This pumping technique is similar to F-THETA Pumping of a Reversed-Field-Pinch but is applied to this inverse-pinch formation.
Injection, Steady-State Conditions, Tokamak Devices 700202* -- Fusion Power Plant Technology-- Magnet Coils & Fields, Helical Configuration, Thermonuclear Devices, Spheromak Devices, Induction, Intake, 70 Plasma Physics And Fusion Technology, Configuration, Operation, Closed Plasma Devices
Injection, Steady-State Conditions, Tokamak Devices 700202* -- Fusion Power Plant Technology-- Magnet Coils & Fields, Helical Configuration, Thermonuclear Devices, Spheromak Devices, Induction, Intake, 70 Plasma Physics And Fusion Technology, Configuration, Operation, Closed Plasma Devices
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