Physics
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jgr....98.7799m&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 98, no. A5, p. 7799-7803.
Physics
6
Absorption Cross Sections, Fine Structure, Nitrogen, Oxygen Ions, Photoabsorption, Ultraviolet Absorption, Emission Spectra, Room Temperature, Spectral Line Width, Spectrometers, Synchrotron Radiation
Scientific paper
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 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.
Asfaw Araya
Cleary David D.
Fortna D. E. J.
Humm David C.
Morgan Harry D.
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