Title: The effect of rigid electron rotation on the Grad–Shafranov equilibria of a class of FRC devices

Journal Article · · Nuclear Fusion
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  1. Princeton Fusion Systems
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Rigid electron rotation of a Rotamak-FRC produces a pressure flux function that is more peaked than the Solov'ev flux function. This paper explores the implications of this peaked pressure flux function, including the isothermal case, which appear when the temperature profile is broader than the density profile, creating both benefits and challenges to a Rotamak-FRC based fusion reactor. In this regime, the density distribution becomes very peaked, enhancing the fusion power. The separatrix has a tendency to become oblate, which can be mitigated by flux conserving current loops. Plasma extends outside the separatrix, notably in the open field line region. Furthermore, this model does not apply to very kinetic FRCs or FRCs in which there are significant ion flows, but it may have some applicability to their outer layers.

Research Organization:
Princeton Fusion Systems, Plainsboro, NJ (United States); Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); Princeton Satellite Systems, Plainsboro, NJ (United States)
Sponsoring Organization:
National Aeronautics and Space Administration (NASA); USDOE Advanced Research Projects Agency - Energy (ARPA-E)
Grant/Contract Number:
AC02-09CH11466; AR0001099
OSTI ID:
1806290
Journal Information:
Nuclear Fusion, Journal Name: Nuclear Fusion Journal Issue: 8 Vol. 61; ISSN 0029-5515
Publisher:
IOP ScienceCopyright Statement
Country of Publication:
United States
Language:
English

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