TASKA-M — a low cost technology test tandem mirror

Abstract

TASKA-M is a conceptual design of a technology test tandem mirror. The design objective is to obtain a reasonable neutron flux and fluence for blanket and materials testing at the lowest possible cost. The configuration chosen utilizes an axisymmetric central cell with hot, mirror-confined ions, and yin-yang MHD anchors. The neutron wall loading in the central cell varies from 0.7 to 1.3 MW/m² and the estimated direct cost is about US $ 400 × 10⁶. This device can be built with only modest extrapolations in technology, e.g. magnets and neutral beams; it also represents a minimum extrapolation from the present experimental data base for tandem mirrors.