Total photoabsorption cross section of molecular nitrogen near 83.4 nm
- 1 May 1993
- journal article
- Published by American Geophysical Union (AGU) in Journal of Geophysical Research
- Vol. 98 (A5) , 7799-7803
- https://doi.org/10.1029/92ja02894
Abstract
The photoabsorption cross section of molecular nitrogen near 83.4 nm has been measured at room temperature. The cross sections at the wavelengths of the 2s2p4 4P5/2, 4P3/2, and 4P1/2 (all ‐ 2s²2p³ 4So3/2) O+ emission lines are measured to be 10.1 ± 1.6 Mb, 0.29 ± 0.02 Mb, and 0.049 ± 0.008 Mb respectively. These measurements were made with an O+ emission discharge source, and repeated using a synchrotron radiation source. Both measurements were made with the 0.008‐nm resolution 6.65‐m spectrometer at the SURF II storage ring of the National Institute for Standards and Technology.Keywords
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