Optimization of accelerated charged particle beam for ADS energy production

Comparative analysis and optimization of energy efficiency for proton and ion beams in ADS systems are performed using GEANT4 with account of energy consumption for accelerators of different types. It is demonstrated that for light nuclei, beginning with ⁷Li, with energies > 1 GeV/nucleon, ion beams are considerably (several times) more efficient than a proton beam with an energy of 1-3 GeV. The possibility is substantiated of achieving energy release in a quasi-infinite uranium target equivalent to that for 1 GeV protons with higher efficiency (and twice as small accelerator size) in the case of acceleration of light ions.