  The energy dependence for the survival probability of large rapidity gaps
(LRG) $< \mid S \mid^2 >$, is calculated in an Eikonal model assuming a
Gaussian opacity. The parameters determining $< \mid S \mid^2 >$ are evaluated
directly from experimental data, without further recourse to models. We find
that $< \mid S \mid^2 >$ decreases with increasing energy, in line with recent
results for LRG dijet production at the Tevatron.
