Neoclassical transport and alpha particle confinement in novel 3-D reactor systems

• Published in: Nuclear Fusion (ISSN: 0029-5515), vol. 42, num. 7, p. 817-826
• Publication date: 2002

Neoclassical transport and a particle confinement are analysed for three 3-D reactor designs-the QAS3, the ST/sphellamak hybrid and the sphellamak-using the VENUS code. It is observed that neither the QAS3 nor the ST/sphellamak is truly aquasi-axisymmetric configuration. 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 2-D equivalent tokamak.

Reference

• CRPP-ARTICLE-2002-067
• doi:10.1088/0029-5515/42/7/304
• View record in Web of Science

Record created on 2008-04-16, modified on 2017-05-12