Feasibility studies of alpha-particle channeling in mirror machines

A. I. Zhmoginov, N. J. Fisch

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The linear magnetic trap is an attractive concept both for fusion reactors and for other plasma applications because of its relative engineering simplicity and high-beta operation. Applying the a-channeling technique to linear traps such as mirror machines can benefit this concept by efficiently redirecting a-particle energy to fuel ion heating or by otherwise sustaining plasma confinement, thus increasing the effective fusion reactivity. To identify waves suitable for a channeling, a rough optimization of the energy extraction rate with respect to the wave parameters is performed. After the optimal regime is identified, a systematic search for modes with similar parameters in mirror plasmas is performed, assuming quasi-longitudinal or quasi-transverse wave propagation. Several modes suitable for a-particle energy extraction are identified for both reactor designs and for proof-of-principle experiments.

Original languageEnglish (US)
Pages (from-to)361-368
Number of pages8
JournalFusion Science and Technology
Volume57
Issue number4
DOIs
StatePublished - May 2010

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

Keywords

  • Alpha channeling
  • Mirror machines
  • Ray tracing

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