RF scans of physics stacks

For the runs 216P to 225P the stacks were scanned at the beginning and at the end of the runs. 1) The scans obtained are attached. A few conclusions can be drawn from these pictures: 1) There is no shift in momentum (which at some stages certain RF scans indicated). 2) There is a certain diffusion in momentum space as can be seen from the filling-up of dips which are present at the beginning of the run and have disappeared at the end (very typical example of this effect is given by the R2 scans of run 219).