4 papers · 1 filter
On "the plasma approximation"
Robert W. Johnson
``The plasma approximation'' is, in the words of Pauli, ``not even wrong,'' as it expresses a disbelief in the symmetries of the underlying gauge field theory. The electrostatic fi…
Currents in a Tokamak
Robert W. Johnson
A self-consistent analysis of the currents in a tokamak yields the result that the parallel neutralizing current is given simply by the sum of currents commonly called the bootstra…
Viscosity and confinement in magnetized plasma
Robert W. Johnson
An alternative to the Braginskii decomposition is proposed, one rooted in treating the viscosity as a scalar quantity in a coordinate-free representation. With appropriate applicat…
Non-Newtonian viscosity in magnetized plasma
Robert W. Johnson
The particle and momentum balance equations can be solved on concentric circular flux surfaces to determine the effective viscous drag present in a magnetized tokamak plasma in the…