Laser Diagnostics of Hydrogen and Helium Atoms in a Divertor Region

  • K. Uchino
  • S. Kuroda
  • T. Kajiwara
  • K. Muraoka
  • T. Okada
  • M. Maeda

Abstract

The divertor operation for density control and impurity suppression is one of the key issues of ITER. In order to evaluate the divertor operation, local measurements of atomic hydrogen densities are very important. Also, atomic helium densities must be measured, because the divertor should exhaust the helium ash produced by D-T burning. In this paper, we propose laser diagnostic techniques for local measurements of hydrogen and helium atoms in a divertor region.

Keywords

Burning Microwave Argon Helium Titration 

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References

  1. 1.
    V.I. Gladuschak et al., Proc. 19th EPS Conf. Contr. Fusion Plasma Phys., Innsbruck, II-1219 (1992).Google Scholar
  2. 2.
    U. Czarnetzki, K. Miyazaki, T. Kajiwara, K. Muraoka, M. Maeda, and H.F. Doebele, J. Opt. Soc. Am. B 11: 2155 (1994).Google Scholar
  3. 3.
    K. Muraoka, K. Miyazaki, U. Czarnetzki, T. Kajiwara, K. Uchino, H. Takenaga, T. Okada, M. Maeda, T. Yamauchi and T. Shoji, J. Nucl. Mater. 220 – 222: 563 (1995).Google Scholar
  4. 4.
    H.W. Drawin and F. Emard, EUR-CEA-FC-534, Association Euratom-C. E. A. (1970).Google Scholar
  5. 5.
    T. Fujimoto, J. Quant. Spectrosc. Radiat. Transfer 21: 439 (1979).CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1996

Authors and Affiliations

  • K. Uchino
    • 1
  • S. Kuroda
    • 1
  • T. Kajiwara
    • 1
  • K. Muraoka
    • 1
  • T. Okada
    • 2
  • M. Maeda
    • 2
  1. 1.Kyushu UniversityJapan
  2. 2.Kyushu UniversityJapan

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