Author:
Hosseininejad M.,Ghoranneviss M.,Salem M. K.
Abstract
AbstractIn 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.
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous)
Reference24 articles.
1. Stringer, T.E.: Effect of the magnetic field ripple on diffusion in Tokamaks. Nucl. Fusion 12, 694–698 (1973)
2. Khan, M., Schoepf, K., Goloborod’Ko, V.: Symplectic simulations of radial diffusion of in Tokamaks in the presence of TF ripples and a Neoclassical tearing mode. J. Fusion Energy 31(6), 547–561 (2012). https://doi.org/10.1007/s10894-011-9503-3
3. Wesson, J.: Tokamaks, pp. 374–389. Oxford press, Oxford (1997)
4. Khan, M., Schoepf, K., Goloborod’Ko, V.: Sympletic simulations of radial diffusion of fast Alpha particles in the presence of low-frequency modes in rippled Tokamaks. J. Fusion Energy 36, 40–47 (2017). https://doi.org/10.1007/s10894-016-0120-z
5. Khan, M., Zfar, A., Kamran, M.: Fast ion trajectory calculation using symplectic integration algorithm. J. Fusion Energy 34(2), 298–304 (2014). https://doi.org/10.1007/s10894-014-9801-7