Zeitschrift für Physik A Hadrons and nuclei

, Volume 264, Issue 1, pp 61–71 | Cite as

Temperaturen in Ionenlaserplasmen

  • G. Herziger
  • H. R. Lüthi
  • W. Seelig
Article
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Temperatures of ion laser plasmas

Abstract

Plasma temperatures of the wall-stabilized low pressure Ar-arc, which has been optimized for maximum inversion density of the Ar II 4p- 4s laser transitions (i.e.kTe≅4 eV), have been determined experimentally and compared with literature data. Ion temperature is obtained from the Doppler linewidths of Ar II transitions, which have been measured both spectroscopically and indirectly by measuring the gain of the 4880 å laser line. Neutral temperature is obtained from the Doppler linewidths of Ar-I-transitions and by relating fill pressure and calculated values of the corresponding gas density.

Ion- and neutral temperature are reported to reach values ofTi≅ 30000 K andTa≅ 25 000 K, respectively. In the range under present concern (kTe≅4 eV, 15≦jR [A cm−1]≦150)Ti as well asTa is a function of the characteristic parameterjR alone (j=current density,R=tube radius).

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Copyright information

© Springer-Verlag 1973

Authors and Affiliations

  • G. Herziger
    • 1
  • H. R. Lüthi
    • 1
  • W. Seelig
    • 1
  1. 1.Institut für angewandte Physik der UniversitÄtBernSchweiz

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