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A fundamentally new scheme of the electronuclear method based on nuclear relativistic technologies is discussed; this scheme includes the formation and utilization of a limiting hard neutron spectrum in the volume of the deep subcritical active core. It is demonstrated that the development and application of nuclear relativistic technologies can be promising for solving the problem of utilizing spent nuclear fuel and global challenges of power production. The results of the first experiments performed at the Joint Institute for Nuclear Research indicate the realistic character of the main principles of relativistic nuclear technologies, in particular, the growth of beam-power amplification by a factor of 2 for a deuteron beam irradiating a massive (315 kg) uranium target with the beam energy increasing from 1 to 4 GeV.

An accurate data base for the analyzing power of thick CH2 analyzers for high energy protons has been at the basis of several research efforts in a number of laboratories. Starting in the late eighties such data were collected at SATURNE in Saclay, and with the Synchrophasotron in Dubna, and led to an extensive program of study of polarization phenomena in pd interaction, either backward elastic scattering or breakup [1–6]. At about the same time it became evident that measuring polarization observables in elastic ep was going to be the best approach to determine the form factors of the proton, GEp and GMp, as had been predicted by Akhiezer and Rekalo [7].