Intensity dependence of hydrogen Lyman alpha and Balmer alpha lines upon cathode material of an abnormal glow discharge

  • M. Gemišić Adamov
  • M. M. Kuraica
  • N. KonjevićEmail author


The results of the hydrogen L\(_{\alpha}\) 121.567 nm and H\(_{\alpha}\) 656.280 nm line intensity dependence upon cathode material of an abnormal glow discharge are reported. Under similar experimental conditions systematic variation of the L\(_{\alpha}\) and H\(_{\alpha}\) line intensity with the atomic number Z of cathode material (graphite, Ti, Fe, Cu, Zn, Pd, Ag, Pt, Au and Pb) is detected. Shapes of line intensity Z-dependences suggest that, apart from electron impacts, line excitation is related also to the back-scattering of fast hydrogen atoms from cathode and sputtering yield of cathode material. The excitation of H2 molecular bands is not sensitive to these cathode processes.


Cathode Material Glow Discharge Line Intensity Molecular Band Line Excitation 
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© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  • M. Gemišić Adamov
    • 1
  • M. M. Kuraica
    • 1
    • 2
  • N. Konjević
    • 2
    Email author
  1. 1.Center for Science and Development of TechnologyBelgradeSerbia and Montenegro
  2. 2.Faculty of PhysicsUniversity of BelgradeBelgradeSerbia and Montenegro

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