<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>K</mi></math>-shell photoabsorption spectra of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">N</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math> and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">N</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math>O using synchrotron radiation

A. Bianconi; H. Petersen; Frederick C. Brown; R. Z. Bachrach

doi:10.1103/PhysRevA.17.1907

$K$ -shell photoabsorption spectra of $N_{2}$ and $N_{2}$ O using synchrotron radiation

A. Bianconi, H. Petersen, Frederick C. Brown, and R. Z. Bachrach

Phys. Rev. A 17, 1907 – Published 1 June 1978

Abstract

The total photoionization cross section of the $1 s$ level of nitrogen in $N_{2}$ and $N_{2}$ O molecules has been measured using monochromatized synchrotron radiation. High-resolution spectra in the range $390 < ℏ ω < 450$ eV were recorded. A broadband in the continuum at 9.4 eV above the ionization threshold, due to the $f$ -type shape resonance, has been measured with high resolution. The data are compared with theoretical calculations of photoionization cross section. Recent Hartree-Fock calculations in the static-exchange approximation agree better than earlier results, which employed the multiple-scattering method.