Study of pitch-angle-scattering spectrum of high-energy ions in the large helical device

H. Nishimura, T. Saida, A. V. Krasilnikov, M. Isobe, M. Nishiura, K. Shinto, S. Kitajima, M. Sasao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The perpendicular spectrum of high-energy particles originally injected tangentially was measured using a neutral particle analyzer (NPA) based on a natural diamond detector (NDD) in the Large Helical Device (LHD). The steady state spectrum showed the dependence on the magnetic configuration, indicating the effect of the orbit loss. An analytical asymptotic solution of the Fokker-Planck equation, taking into account collision terms of coulomb interaction, the fast-ion source term and the orbit loss of the helically trapped and transition particles, is proposed.

Original languageEnglish
Title of host publication32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts
Pages1710-1713
Number of pages4
Publication statusPublished - 2005 Dec 1
Event32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets - Tarragona, Spain
Duration: 2005 Jun 272005 Jul 1

Publication series

Name32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts
Volume3

Other

Other32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets
Country/TerritorySpain
CityTarragona
Period05/6/2705/7/1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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