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Title: Fusion Utility in the Knudsen Layer

In inertial confi nement 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 to those of thermal ions. We introduce a fusion utility function to demonstrate essential features of this Knudsen layer e ffect, in both magnetized and unmagnetized cases. The fusion utility concept is also used to evaluate restoring the reactivity in the Knudsen layer by manipulating fast ions in phase space using waves.
 [1] ;  [1]
  1. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
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DOE Contract Number:
Resource Type:
Technical Report
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Related Information: Submitted to: Physics of Plasmas
Research Org:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Sponsoring Org:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
Contributing Orgs:
Princeton University, Princeton Plasma Physics Laboratory, Princeton, New Jersey 08544, USA
Country of Publication:
United States
70 PLASMA PHYSICS AND FUSION TECHNOLOGY Collisions; Inertial Confinement Fusion; Transport Phenomena