6.1 Figure 1

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6.1 Figure 1

$\begin{figure}\begin{center} {\leavevmode\hbox{\epsffile{pitt-507_fig1.eps}}} \end{center}\end{figure}$

Real and imaginary parts of the full forward Delbrück amplitude D for Z=92, including corrections due to Coulomb and screening effects in ordinary pair production, and due to bound-electron pair production, in terms of the classical electron radius r₀. The threshold for production into the K shell (0.906 MeV) is indicated, below which the imaginary amplitude vanishes.

Eoin Carney
1999-06-14