[en] An analysis of the ion-optical parameters of the existing facilities for precise nuclear reactions experiments at the U-400 cyclotron swichyard shows that some improvement can be made to perform RIB experiments at the Coulomb barrier of interactions. A change in the position of a dozen of quadrupole lenses at the cyclotron switchyard permits one to obtain parameters of magnetic spectrometers adequate for the modern experiments
1998; 6 p; 9 refs., 3 figs. Submitted to the 15th International Conference on Cyclotrons and their Applications - CYCLOTRONS-98, Jun 1998, Caen, France