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Article
Collisional Ionization of Excited State Neon in a Gas Discharge Plasma
Contributions to Plasma Physics
  • Xianming Han, Butler University
  • Verl Wiseheart
  • Scott E. Conner
  • Meng-Chih Su
  • David L. Monts
Document Type
Article
Publication Date
1-1-1995
DOI
http://dx.doi.org/10.1002/ctpp.2150350412
Abstract
We report the first case where it is possible to clearly identify and quantitatively characterize the dominant physical processes contributing to production of the optogalvanic effect (OGE) signal in a discharge plasma. This work concentrates on the simplest case where only two states are involved in the optical transition. The theoretical model with only four parameters is in excellent agreement with the experimentally obtained time-resolved OGE waveforms. The collisional ionization rate in the upper state is twice as fast as that in the lower state although the two states are only separated by 1.94 eV. We conclude that the optogalvanic effect of the neon 640.22 nm transition is due primarily to the electron collisional ionization of the neon atoms. An alternative interpretation for the lengthening of the final state lifetime is also included (see Appendix).
Rights
Version of record can be found through Wiley.
Citation Information
Xianming Han, Verl Wiseheart, Scott E. Conner, Meng-Chih Su, et al.. "Collisional Ionization of Excited State Neon in a Gas Discharge Plasma" Contributions to Plasma Physics Vol. 34 Iss. 4-5 (1995) p. 439 - 452
Available at: http://works.bepress.com/xianming_han/6/