In 1962 began the theoretical calculations of new method of acceleration and experimental works started in 1968. The NMA Department was founded in this year. Accelerator with electron ring is a method of organization high density charge bunch. In this scheme an electron ring was formed by injecting an intense current into a specially shaped magnetic field with weak focusing. The ring compressed by increasing the field so the density electrons inside ring and Coulomb force increased also, but the energy electrons grow and magnetic contraction decreased of discontraction forces on the ring boundary.
Ions collect in the electron ring as a result of the ionization of background gas.
Since electrons and ions are moving in the direction of acceleration with the same velocity, the ions, having the larger mass than electrons, gain a greater amount of energy. A new method of forming electron rings with large density of charge was experimentally verified at the Department in 1969. After year a -particles were registered at the model of a collective accelerator and the construction of a collective heavy ions accelerator was begun. These results exceed the world achievements in the investigations of collective method of acceleration. Important results have been recently obtained at the collective heavy ion accelerator.