Experiments with massive uranium targets - on the way to technologies for Relativistic Nuclear Energy

It is considered an essentially new scheme of the electro-nuclear method - nuclear relativistic technologies (RNT). This is based on the formation and use an extremely hard neutron spectrum inside deep subcritical active core. It is shown that the development and application of RNT may be promising for solving the problem of utilization of spent nuclear fuel and the global challenges of energy. The results of the first experiments carried out at JINR indicate a validity of the basic principles of RNT, in particular, doubling the gain of the power of the deuteron beam, irradiating the massive (315 kg) uranium target, with increasing the beam energy from 1 to 4 GeV.