Physics – General Physics
Scientific paper
Sep 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979phrva..20.1045b&link_type=abstract
Physical Review A - General Physics, 3rd Series, vol. 20, Sept. 1979, p. 1045-1061. Research supported by the U.S. Department o
Physics
General Physics
40
Absorption Cross Sections, Absorptivity, Carbon Dioxide, Carbon Monoxide, Molecular Orbitals, Nitrous Oxides, Oxygen, Photoabsorption, Absorptance, Electron Transitions, Error Analysis, Gas Ionization, Rydberg Series, Tables (Data)
Scientific paper
The total photoabsorption coefficient has been measured from 500 to 600 eV around the K edge of oxygen in gases O2, CO2, CO, and N2O by means of a gold continuum source and crystal spectrometer with better than 1-eV resolution. The cross sections are dominated by discrete molecular-orbital transitions below the K-edge energy. A few Rydberg transitions were barely detectable. Broad shape resonances appear at or above the K edge. Additional broad, weak features above the K edge possibly arise from shake up. Quantitative results are given that have about 10% accuracy except on the very strong peaks. All the measured features are discussed in relation to other related measurements and theory.
Barrus Michael D.
Blake Richard L.
Burek Anthony J.
Chambers Kenneth C.
Pregenzer A. L.
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