Fusion utility in the Knudsen layer

Journal Article · Mon Sep 15 00:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4895477· OSTI ID:22303624

Davidovits, Seth; Fisch, Nathaniel J. ^[1]

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1. Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08544 (United States)

In inertial confinement fusion, the loss of fast ions from the edge of the fusing hot-spot region reduces the reactivity below its Maxwellian value. The loss of fast ions may be pronounced because of the long mean free paths of fast ions, compared with those of thermal ions. We introduce a fusion utility function to demonstrate essential features of this Knudsen layer effect, in both magnetized and unmagnetized cases. The fusion utility concept is also used to evaluate the restoring reactivity in the Knudsen layer by manipulating fast ions in phase space using waves.

• OSTI ID: 22303624
• Journal Information: Physics of Plasmas, Vol. 21, Issue 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPARATIVE EVALUATIONS
HOT SPOTS
INERTIAL CONFINEMENT
IONS
LAYERS
LOSSES
MEAN FREE PATH
PHASE SPACE
REACTIVITY