Research Papers in Physics and Astronomy


Date of this Version

November 1996


Published in Atomic, Molecular, and Optical Physics Handbook, Edited by G.W.F. Drake (A.I.P., New York, 1996), Chapter 24, pp. 301-309. Copyright 1996 American Institute of Physics. Used by permission.


This chapter outlines the theory of atomic photoionization, and the dynamics of the photon-atom collision process. Those kinds of electron correlation that are most important in photoionization are emphasized, although many qualitative features can be understood within a central field model. The particle-hole type of electron correlations are discussed, as they are by far the most important for describing the single photoionization of atoms near ionization thresholds. Detailed reviews of atomic photoionization are presented in Refs. [I] and 121. Current activities and interests are well-described in two recent books [3,4]

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