Attenuation of high-energy neutral hydrogen beams in high-density plasmas

S. Suzuki, T. Shirai, M. Nemoto, K. Tobita, H. Kubo, T. Sugie, A. Sakasai, Y. Kusama

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

Abstract

Beam stopping cross section and shine-through for neutral hydrogen beam injection into fusion plasmas have been calculated by using recommended cross sections presently available for atomic processes including multistep collision processes involving excited states. The shine-through thus obtained agrees well with recent experiments of JT-60U. The present calculations show that the multistep processes play a crucial role in the stopping of high-energy neutral hydrogen beams in high-density plasmas. Analytical fits to the stopping cross sections and fitting parameters are also presented for plasma impurities with nuclear charge Z ≤ 8 and Z = 26.

Original languageEnglish
Pages (from-to)2097-2111
Number of pages15
JournalPlasma Physics and Controlled Fusion
Volume40
Issue number12
DOIs
Publication statusPublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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