<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>K</mml:mi></mml:math>-,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>L</mml:mi></mml:math>-, and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>M</mml:mi></mml:math>-Shell Atomic Photoeffect for Screened-Potential Models

Photoelectric cross sections for $K$ through ${M}_{V}$ subshells of iron, tin, and uranium have been numerically computed for x rays from 412 to 1332 keV using a relativistic multipole expansion of the matrix element. Electronic orbitals and partial waves were computed in the central-field approximation. Comparison of screened with unscreened results shows that angular distributions and polarization correlations are essentially unaffected by central-potential screening; total cross sections are merely renormalized by a factor equal to the square of the ratio of screened to Coulomb bound-state normalizations. This normalization effect is used to develop a table of realistic total cross sections for energies 10 to 3000 keV, and atoms $Z=13$ through 92. These predictions are compared with existing experimental data.

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