On alpha-particle transport in inertial fusion

Analytical theory and models of inertial fusion implosion use parameterized microphysics models. In this paper, we consider the DT alpha-particle transport, and report new parameterizations of the range, heating efficacy, and energy partition using modern stopping-power theory. Our resulting heating...

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Bibliographic Details
Published in:Physics of plasmas 2019-06, Vol.26 (6)
Main Authors: Zylstra, A. B., Hurricane, O. A.
Format: Article
Language:English
Subjects:
Alpha rays
Heating
Inertial fusion (reactor)
Microphysics
Plasma physics
Transport
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Summary:Analytical theory and models of inertial fusion implosion use parameterized microphysics models. In this paper, we consider the DT alpha-particle transport, and report new parameterizations of the range, heating efficacy, and energy partition using modern stopping-power theory. Our resulting heating efficacy is lower than previously published results, which reduces the temperature and pressure generated by a dynamic implosion hot-spot evolution model, and shifts the burning-plasma regime boundary slightly farther from current experimental results.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.5101074