Effects of Nonclassical Ion Losses on Radial Electric Field in CHS Torsatron/Heliotron

Heiji Sanuki, Kimitaka Itoh, Sanae I. Itoh

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


A selfconsistent analysis is discussed to determine the radial electric field and loss cone boundary in torsatron/heliotron plasmas under the influence of nonclassical ion losses. Effects of the loss cone loss, charge exchange loss of fast ions with neutrals, and the bipolar part of anomalous loss are taken into account. Analysis is applied to the NBI heated plasma in the CHS device. Comparison is made between theoretical results and experimental observations. The increased ion particle losses by the orbit loss and charge exchange loss with neutrals make the radial electric field more negative than the value of purely neoclassical calculation. The partition of the injection energy among the shine through, direct orbit loss, charge exchange loss and bulk heating is estimated by using the self-consistent electric field profile.

Original languageEnglish
Pages (from-to)123-139
Number of pages17
Journaljournal of the physical society of japan
Issue number1
Publication statusPublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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