- Author
-
Van Tassel, R. A.
|
Huffman, R. E.
|
Roebber, J. L.
- Title
- Atomic Oxygen Oscillator Strengths in the Autoionization Region. Part 1. The Absolute Strength of the 5s' Lines. Interim Report.
- Coporate
- Air Force Camridge Research Labs., Hanscom Field, MA
- Journal
-
Journal of Chemical Physics,
Vol. 59,
No. 11,
5926-5935,
December 1, 1973
- Report
-
AFCRL-TR-74-0092
July 2, 1973
37 p.
- Keywords
-
oxygen concentration
- Abstract
- A curve-of-growth method was used to determine the absolute oscillator strength and other line parameters of the autoionized transition. This method was used because the spectral width of the lines is far less than the bandwidth of the spectrometer. Neither lifetime nor emission measurements are applicable because depopulation of the upper state occurs predominantly by autoionization. The atomic oxygen concentrations were determined by means of the O-NO2 titration. Sets of curves of growth were computed on the basis of the separation of the three levels, as observed with a spectrograph, tabulated values of the relative line strengths based on L-S coupling, and consideration of the different broadening mechanisms operating under the condition of the experiment. This included consideration of the configuration interaction of the upper states with the adjoining ionization continuum.