Title of article
Ripple transport and neoclassical diffusion in IR‑T1 tokamak
Author/Authors
Hosseininejad, M. Plasma Physics Research Center - Islamic Azad University Science and Research Branch, Tehran, Iran , Ghoranneviss, M. Plasma Physics Research Center - Islamic Azad University Science and Research Branch, Tehran, Iran , Salem, M. K. Plasma Physics Research Center - Islamic Azad University Science and Research Branch, Tehran, Iran
Pages
7
From page
93
To page
99
Abstract
In tokamaks, small variations in the magnetic field create ripple. The discontinuous nature of the magnetic field coils in an
axisymmetric torus conduces to additional particle trapping, and it is responsible for an additional neoclassical diffusion.
Ripples also reduce the particle removal efficiency and disturb plasma confinement and cause constraints in the design of
magnet of fusion reactor. Therefore, it is quite important to include the ripple for the design of plasma edge components.
Herein, several considerations are taken into account to calculate and evaluate the diffusion coefficient and ion heat conductivity
in ripple transport and also to compare it with neoclassical mode.
Keywords
Neoclassical diffusion , Ripple magnetic field , Ripple transport , Diffusion coefficient , Diffusivity , Ion heat conductivity
Journal title
Journal of Theoretical and Applied Physics
Serial Year
2020
Record number
2527210
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