  The values and energy dependence for the survival probability $< \mid S\mid^2
>$ of large rapidity gaps (LRG) are calculated in a three channel model. This
model includes single and double diffractive production, as well as elastic
rescattering. It is shown that $< \mid S \mid^2 >$ decreases with increasing
energy, in line with recent results for LRG dijet production at the Tevatron.
This is in spite of the weak dependence on energy of the ratio $ (\sigma_{el}+
\sigma_{SD})/\sigma_{tot}$.
