A Compact Quasi-axisymmetric Stellarator Reactor

Ku, L. P. ; ARIES-CS Team

Princeton University. Plasma Physics Laboratory.

关键词: Coils;    Magnetic Fields;    Shielding;    70 Plasma Physics And Fusion Technology;    Stellarators;   

DOI  :  10.2172/820108
RP-ID  :  PPPL-3886
RP-ID  :  AC02-76CH03073
RP-ID  :  820108

美国|英语

来源: UNT Digital Library

【 摘 要 】

We report the progress made in assessing the potential of compact, quasi-axisymmetric stellarators as power-producing reactors. Using an aspect ratio A=4.5 configuration derived from NCSX and optimized with respect to the quasi-axisymmetry and MHD stability in the linear regime as an example, we show that a reactor of 1 GW(e) maybe realizable with a major radius *8 m. This is significantly smaller than the designs of stellarator reactors attempted before. We further show the design of modular coils and discuss the optimization of coil aspect ratios in order to accommodate the blanket for tritium breeding and radiation shielding for coil protection. In addition, we discuss the effects of coil aspect ratio on the peak magnetic field in the coils.