Figure A08-m4bii3-F1: Rainbow structure versus initial colliding energy (CM system). Rainbow structure versus initial colliding energy (CM system). From twelve measured rainbow structures the positions of the maxima of primary and supernumerary rainbows have been given with regard to the third supernumerary. The boundaries of the rainbow structure have been given by the outer curves, at the left-hand side connecting the primary rainbows, at the right-hand side the measured minima of the differential cross section due to scattering with maximal impact parameter . The other full lines connect the measured maxima of the corresponding supernumeraries, the dashed curves show the calculated positions of the maxima of rainbow and supernumeraries. .