Antineutrino spectrum from powerful reactor and neutrino converter system

Antineutrino spectrum for a powerful reactor-converter system based on 8Liβ- decay is discussed. This neutron-to-antineutrino converter contains highly purified 7Li isotope in chemical composition and β- decaying 8Li from 7Li(n,γ)8Li reaction. Many chemical compositions were analyzed and the most perspective is found to be LiOD heavy-water solution, which minimizes the converter lithium mass. Static, dynamic and pulse regimes are discussed for some types of converter constructions. The most interesting is the powerful antineutrino source on the basis of an accelerator-driven system (booster) used for incineration of nuclear waste