• DOI:10.1017/S0263034614000305
• Corpus ID: 53310741

Fast ignition driven by quasi-monoenergetic ions: Optimal ion type and reduction of ignition energies with an ion beam array

@article{Honrubia2014FastID,
  title={Fast ignition driven by quasi-monoenergetic ions: Optimal ion type and reduction of ignition energies with an ion beam array},
  author={Javier Honrubia and J. C. Fern{\'a}ndez and Bjorn Manuel Hegelich and Masakatsu Murakami and C{\'e}sar Daniel Enr{\'i}quez},
  journal={Laser and Particle Beams},
  year={2014},
  volume={32},
  pages={419-427}
}

• J. Honrubia, J. Fernández, +2 authors C. D. Enríquez
• Published 28 January 2014
• Physics
• Laser and Particle Beams

Fast ignition of inertial fusion targets driven by quasi-monoenergetic ion beams is investigated by means of numerical simulations. Light and intermediate ions such as lithium, carbon, aluminum and vanadium have been considered. Simulations show that the minimum ignition energies of an ideal configuration of compressed Deuterium-Tritium are almost independent on the ion atomic number. However, they are obtained for increasing ion energies, which scale, approximately, as Z2, where Z is the ion atomic number. Assuming that the ion beam can be focused into 10 ?m spots, a new irradiation scheme is proposed to reduce the ignition energies. The combination of intermediate Z ions, such as 5.5 GeV vanadium, and the new irradiation scheme allows a reduction of the number of ions required for ignition by, roughly, three orders of magnitude when compared with the standard proton fast ignition scheme.