Fast deuteron diagnostics using visible light spectra of 3He produced by deuteron-deuteron reaction in deuterium plasmas

K. Kimura, H. Matsuura, Y. Kawamoto, T. Oishi, M. Goto, K. Ogawa, T. Nishitani, M. Isobe, M. Osakabe

研究成果: Contribution to journalArticle査読

抄録

The fast deuteron (non-Maxwellian component) diagnostic method, which is based on the higher resolution optical spectroscopic measurement, has been developed as a powerful tool. Owing to a decrease in the D-H charge-exchange cross section, the diagnostic ability of conventional optical diagnostic methods should be improved for ∼MeV energy deuterons. Because the 3He-H charge-exchange cross section is much larger than that of D-H in the ∼MeV energy range, the visible light (VIS) spectrum of 3He produced by the dueteron-dueteron (DD) reaction may be a useful tool. Although the density of 3He is small because it is produced via the DD reaction, improvement of the emissivity of the VIS spectrum of 3He can be expected by using a high-energy beam. We evaluate the VIS spectrum of 3He for the cases when a fast deuteron tail is formed and not formed in the ITER-like beam injected deuterium plasma. Even when the beam energy is in the MeV energy range, a large change appears in the half width at half maximum of the VIS spectrum. The emissivity of the VIS spectrum of 3He and the emissivity of bremsstrahlung are compared, and the measurable VIS spectrum is obtained. It is shown that the VIS spectrum of 3He is a useful tool for the MeV beam deuteron tail diagnostics.

本文言語英語
論文番号053524
ジャーナルReview of Scientific Instruments
92
5
DOI
出版ステータス出版済み - 5 1 2021

All Science Journal Classification (ASJC) codes

  • 器械工学

フィンガープリント

「Fast deuteron diagnostics using visible light spectra of <sup>3</sup>He produced by deuteron-deuteron reaction in deuterium plasmas」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル