Abstract
The comparative analysis and optimization of the energy efficiency for proton and ion beams in ADS systems is performed via GEANT4 simulation with account of energy consumption for different accelerator types. It is demonstrated that for light nuclei, beginning from 7 Li, with energies above 1 GeV/nucleon ion beams are substantially more efficient than 1–3 GeV proton beams.
Highlights
The application of accelerated beams for power production has been discussed since 1950se [1]
The concept of an energy amplifier implies neutron flux generation at interaction of an extracted beam with a target and energy production based on 238U, thorium 232Th, and other heavy elements fission
The commonly considered concept of ADS energy production [10] assumes that a high current proton beam with an energy of ~1 GeV and a target station of heavy elements provides an energy amplification factor of 30–40, which makes the development of an energy producing installation realistic
Summary
The application of accelerated beams for power production has been discussed since 1950se [1]. The commonly considered concept of ADS energy production [10] assumes that a high current proton beam with an energy of ~1 GeV and a target station of heavy elements (natural uranium, thorium) provides an energy amplification factor of 30–40, which makes the development of an energy producing installation realistic. Recent experimental studies [7, 14] with deuteron beams, as well as the results of simulation demonstrate that the proton beam energy for ADS is higher, in a range of 2–4 GeV [12]. The possibility of replacing proton beams by light ion beams has been studied insufficiently It was stated in [10, 11] that ions with a mass higher than that of tritium are less efficient for ADS. Efficient is the relativistic 20Ne nuclear beam with an energy of ~3 GeV/nucleon, which agrees with our preliminary results [16]
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