# The magnetic field structure of a snowflake divertor

## Related Articles

- The snowflake divertor. Ryutov, D. D.; Soukhanovskii, V. A. // Physics of Plasmas;215, Vol. 22 Issue 11, p1
The snowflake magnetic configuration is characterized by the presence of two closely spaced poloidal field nulls that create a characteristic hexagonal (reminiscent of a snowflake) separatrix structure. The magnetic field properties and the plasma behaviour in the snowflake are determined by the...

- Trapping of gun-injected plasma by a tokamak. Leonard, A. W.; Dexter, R. N.; Sprott, J. C. // Physics of Fluids (00319171);Sep87, Vol. 30 Issue 9, p2877
It has been seen that a plasma produced by a Marshall gun can be injected into and trapped by a tokamak plasma. This trapping of a gun-injected plasma is explained in terms of a depolarization current mechanism. A model is developed that describes the slowing of a plasma beam crossing into the...

- Kinetic theory and simulation of multispecies plasmas in tokamaks excited with electromagnetic waves in the ion-cyclotron range of frequencies. Kerbel, G. D.; McCoy, M. G. // Physics of Fluids (00319171);Dec85, Vol. 28 Issue 12, p3629
A description of a bounce-averaged Fokkerâ€“Planck quasilinear model for the kinetic description of tokamak plasmas is presented. The nonlinear collision and quasilinear resonant diffusion operators are represented in a form conducive to numerical solution with specific attention to the...

- Correlation among geodesic curvatur of the magnetic field lines, plasma rotation and improved... Alladio, F.; Crisanti, F.; Mancuso, A.; Micozzi, P.; Tudisco, O.; Burrell, K.H.; Chu, M.S.; Lao, L.L.; Osborne, T.H.; Giannella, R.; Lomas, P.; O'Brien, D.; Riccardo, V.; Schunke, B. // Physics of Plasmas;Jun99, Vol. 6 Issue 6, p2472
Investigates the correlation among geodesic curvature of magnetic field lines, plasma rotation, and improved confinement regimes in tokamaks. Toroidal magnetic confinement configurations of all the charged particles; Minimization of the neoclassical transport; Reduction of the geodesic curvature.

- Plasma Equilibrium with Barriers. Pustovitov, V. D. // Plasma Physics Reports;May2003, Vol. 29 Issue 5, p355
The recently proposed concept of the transport barrier formation in a tokamak plasma as a bifurcation of the equilibrium state with a change in the toroidal magnetic field over the entire plasma column, including the plasma edge, is analyzed. The analysis is performed in the cylindrical...

- Ion temperature gradient mode in the weak density limit. Shukla, P. K. // Physics of Fluids B: Plasma Physics;Apr90, Vol. 2 Issue 4, p848
Including the Righiâ€“Leduc ion heat flux in the energy equation, the ion temperature gradient mode (ITG mode) is reconsidered for flat density profiles in a plasma with inhomogeneous ion temperature and magnetic field gradients. The stability boundary is (re)derived and is compared with...

- Electric and magnetic structure of an edge plasma in a tokamak with a helical magnetic limiter. Takamura, S.; Ohnishi, N.; Yamada, H.; Okuda, T. // Physics of Fluids (00319171);Jan87, Vol. 30 Issue 1, p144
A strong modification of plasma potential was observed at the plasma surface with the application of a helical field produced by a set of local helical coils. The structure of magnetic field lines was computed by a field line tracing code for a tokamak plasma. Such a field structure was examined...

- Probability of orbit transition in asymmetric toroidal plasma. Cary, John R.; Shasharina, S. G. // Physics of Fluids B: Plasma Physics;Jul93, Vol. 5 Issue 7, p2098
Trapped particles in stellarators and tokamaks can be either locally trapped in the ripple wells or toroidally trapped by the 1/R variation of the magnetic field strength. Transitioning particles make transitions back and forth between these two states. The transition probability gives the...

- On transport, in particular of impurities, in a stochastic magnetic field. Tokar, M.Z. // Physics of Plasmas;Jul99, Vol. 6 Issue 7, p2808
Examines the transport coefficients in a stochastic magnetic field. Analytical relationships for the distribution of plasma parameters along divergent lines of force; Stochastization in the case of impurities; Explanation for the plasma decontamination observed in tokamaks with peripheral...