Neoclassical transport and alpha-particle confinement in novel 3D reactor systems
The study of neoclassical transport and alpha-particle: confinement is analysed in 3D reactor designs like the QAS3, the ST/sphellamak hybrid and the sphellamak using the VENUS code. We have observed that neither the QAS3 nor the ST /sphellamak are truly quasi-axisymmetric configurations. Thus the transport is governed by the helical deformation of the magnetic field strength and these configurations do not effectively confine the trapped a-particles. On the other hand, the sphellamak is a nearly isodynamic structure in the plasma core which leads to almost perfect a-confinement and the neoclassical transport is very similar to that obtained in a 2D equivalent tokamak.
Bibliographic Reference: An article published in: Nuclear Fusion, pp.25 ISSN: 0458-5895
Record Number: 200013651 / Last updated on: 2001-09-18
Original language: en
Available languages: en