Angular dependence of photofragments from K-shell excited N2 and O2: Photoabsorption anisotropy and excited state symmetry
Lee, K. ; Kim, D. Y. ; Ma, C. I. ; Lapiano-Smith, D. A. ; Hanson, D. M.
College Park, Md. : American Institute of Physics (AIP)
Published 1990
College Park, Md. : American Institute of Physics (AIP)
Published 1990
| ISSN: |
1089-7690
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
Chemistry and Pharmacology
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| Notes: |
The symmetry of excited states reached by photoexcitation of K-shell electrons of N2 and O2 is identified from the fragmentation anisotropy. For each molecule, ion yield excitation spectra were obtained at 90°, 54.7°, and 0° relative to the axis of soft x-ray polarization. The degree of polarization of the synchrotron radiation was determined experimentally. From this determination and the angular dependence of the ion yield, the photoabsorption anisotropy parameter β is obtained as a function of photon energy. Variations in the β spectra are discussed in terms of previously assigned spectral features and are compared with other experimental results. A comparison also is made with theoretical calculations, which are available for the case of N2.
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| Type of Medium: |
Electronic Resource
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| URL: |