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Measurement of Excited States Density and the VUV‐Radiation in the Pulsed Xenon Medium Pressure Discharge
Author(s) -
Kindel E.,
Schimke C.
Publication year - 1996
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.2150360607
Subject(s) - afterglow , xenon , atomic physics , materials science , excited state , metastability , torr , excimer , radiation , plasma , dissociative recombination , laser , recombination , optics , physics , chemistry , nuclear physics , biochemistry , gamma ray burst , quantum mechanics , astronomy , gene , thermodynamics
Time resolved absolute density measurements of the 1 s 5 (metastable) and 1 s 4 (resonance) level in the positive column of a pulsed xenon gas discharge for gas pressures between 1 and 40 Torr and currents between 100 and 300 mA are presented. The densities ranged from 1 × 10 11 to 5 × 10 12 cm −3 and were found to be ten times larger in the afterglow than in the active part of the discharge. The enhanced radiation obtained in the afterglow in the near infrared regions as well as in the VUV region is caused by a dissociative recombination and formation of excimer states.