The damping rate of the poloidal flow in a tokamak is determined in the banana regime as an initial value problem. The bounce averaged drift kinetic equation is solved analytically for early times, and on longer time scales (of the order To) a numerical solution is performed. Initial conditions are chosen for the ion distribution function t = 0) describing states with similar flows ug(t = 0), but differing structure in the pitch angle variable A = 2/x/t;^. At early times an analytical treatment shows that the damping characteristics of ug{t) depend sensitively on whether the ions responsible for the flow be close to the trapped-passing boundary. Initial decay is shown to be of the form ^ ~ A numerical treatment then confirms this early ti...
Neoclassical toroidal viscosities (NTVs) in tokamaks are investigated using a δf Monte Carlo simulat...
In tokamak pedestals with subsonic flows the radial scale of plasma profiles can be comparable to th...
Collisionless damping of the geodesic acoustic mode (GAM) is investigated by a drift kinetic simulat...
One of the principal problems en route to a fusion reactor is that of insufficient plasma confinemen...
Some important neoclassical phenomena are studied with drift-kinetic simulations of the ions: the cu...
The revisited neoclassical transport theory for a collisional edge layer with steep radial gradients...
© 2008 American Institute of Physics. The electronic version of this article is the complete one and...
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, September 2009."September ...
SIGLEAvailable from British Library Document Supply Centre-DSC:DXN017872 / BLDSC - British Library D...
Understanding the physics of the neoclassical tearing mode (NTM) onset and its stabilisation is one ...
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 20...
As a result of turbulence and finite Larmor radius effects, random radial currents are present in a ...
We consider the effects of a finite pedestal radial electric field on ion orbits using a unified app...
Two simulation codes that solve the drift-kinetic or gyrokinetic equation in toroidal plasmas are be...
Reprinted by permission of American Institute of Physics, http://journals.aip.orgA model for the cal...
Neoclassical toroidal viscosities (NTVs) in tokamaks are investigated using a δf Monte Carlo simulat...
In tokamak pedestals with subsonic flows the radial scale of plasma profiles can be comparable to th...
Collisionless damping of the geodesic acoustic mode (GAM) is investigated by a drift kinetic simulat...
One of the principal problems en route to a fusion reactor is that of insufficient plasma confinemen...
Some important neoclassical phenomena are studied with drift-kinetic simulations of the ions: the cu...
The revisited neoclassical transport theory for a collisional edge layer with steep radial gradients...
© 2008 American Institute of Physics. The electronic version of this article is the complete one and...
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, September 2009."September ...
SIGLEAvailable from British Library Document Supply Centre-DSC:DXN017872 / BLDSC - British Library D...
Understanding the physics of the neoclassical tearing mode (NTM) onset and its stabilisation is one ...
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 20...
As a result of turbulence and finite Larmor radius effects, random radial currents are present in a ...
We consider the effects of a finite pedestal radial electric field on ion orbits using a unified app...
Two simulation codes that solve the drift-kinetic or gyrokinetic equation in toroidal plasmas are be...
Reprinted by permission of American Institute of Physics, http://journals.aip.orgA model for the cal...
Neoclassical toroidal viscosities (NTVs) in tokamaks are investigated using a δf Monte Carlo simulat...
In tokamak pedestals with subsonic flows the radial scale of plasma profiles can be comparable to th...
Collisionless damping of the geodesic acoustic mode (GAM) is investigated by a drift kinetic simulat...