time estimation ROC counting
Previously, it seemed to me that the time estimation for ROC counts where multiplied by two with respect to the really needed time. However, now I state that the estimation is always 10 minutes, whether it is in single sweep mode (12 seconds per sweep) or "go and return" mode (24 seconds) per sweep. Time should be estimated on this base (12 or 24 seconds), ideally recalculated at the beginning of each new sweep and the 12 or 24 seconds could be deduced in a further improvement from the time already actually used for a certain number of sweeps (fine tuning ...). The last point is rather a suggestion (feature) than a bug, but as it belongs it together with the bug mentioned before, I left it here in place ...