Novel stellarator configuration with double helix centre post

摘要

A novel stellarator configuration, the double helix stellarator(DHS), is introduced. It is produced by a double helix centre post and has many unique characteristics. Among them are Extreme low plasma aspect ratios, A≈1, significant rotational transform and extreme-high-βMHD Equilibria. Other advantages include a high enclosed volume, absence of noticeable magnetic islands And improved particle transport caused by the absence of a magnetic field ripple on the outboard part Of the torus. Compactness, simplicity and modularity of the coil system add to the advantages of the DHS configuration for fusion applications.