All Metal Iron Core For A Low Aspect Ratio Tokamak

Gates, D. A. ; Jun, C. ; Zatz, I. ; Zolfaghari, A.

Princeton University. Plasma Physics Laboratory.

关键词: Neutrons;    70 Plasma Physics And Fusion Technology;    Transformers Neutrons, Spherical Torus;    Neutron Flux;    Containment;   

DOI  :  10.2172/981710
RP-ID  :  PPPL-4518
RP-ID  :  DE-ACO2-09CH11466
RP-ID  :  981710

美国|英语

来源: UNT Digital Library

【 摘 要 】

A novel concept for incorporating a iron core transformer within a axisymmetric toroidal plasma containment device with a high neutron flux is described. This design enables conceptual design of low aspect ratio devices which employ standard transformer-driven plasma startup by using all-metal high resistance separators between the toroidal field windings. This design avoids the inherent problems of a multiturn air core transformer which will inevitably suffer from strong neutron bombardment and hence lose the integrity of its insulation, both through long term material degradation and short term neutron- induced conductivity.. A full 3-dimensional model of the concept has been developed within the MAXWELL program and the resultant loop voltage calculated. The utility of the result is found to be dependent on the resistivity of the high resistance separators. Useful loop voltage time histories have been obtained using achievable resistivities.