Natural hot-ion modes in a rotating plasma

Kolmes, E. J.; Ochs, I. E.; Mlodik, M. E.; Fisch, N. J.

doi:10.1103/physreve.104.015209

Title: Natural hot-ion modes in a rotating plasma

Journal Article · 14 July 2021 · Physical Review. E

DOI: https://doi.org/10.1103/physreve.104.015209 · OSTI ID:1850363

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Princeton Univ., NJ (United States); OSTI
Princeton Univ., NJ (United States)

We report that in steady state, the fuel cycle of a fusion plasma requires inward particle fluxes of fuel ions. These particle flows are also accompanied by heating. In the case of classical transport in a rotating cylindrical plasma, this heating can proceed through several distinct channels depending on the physical mechanisms involved. Some channels directly heat the fuel ions themselves, whereas others heat electrons. Which channel dominates depends, in general, on the details of the temperature, density and rotation profiles of the plasma constituents. However, remarkably, under relatively few assumptions concerning these profiles, if the α particles, the by-products of the fusion reaction, can be removed directly by other means, then a hot-ion mode tends to emerge naturally.

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Research Organization:: Cornell Univ., Ithaca, NY (United States); Princeton Univ., NJ (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0003764

OSTI ID:: 1850363

Journal Information:: Physical Review. E, Journal Name: Physical Review. E Journal Issue: 1 Vol. 104; ISSN 2470-0045

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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