Fusion utility in the Knudsen layer

Seth Davidovits, Nathaniel J. Fisch

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


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.

Original languageEnglish (US)
Article number092114
JournalPhysics of Plasmas
Issue number9
StatePublished - Sep 1 2014

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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