Ion beam requirements for fast ignition of inertial fusion targets

Abstract

Ion beam requirements for fast ignition are investigated by numerical simulation taking into account new effects such as ion beam divergence not included before. We assume that ions are generated by the TNSA scheme in a curved foil placed inside a re-entrant cone and focused on the cone apex or beyond. From the focusing point to the compressed core ions propagate with a given divergence angle. Ignition energies are obtained for two compressed fuel configurations heated by proton and carbon ion beams. The dependence of the ignition energies on the beam divergence angle and on the position of the ion beam focusing point have been analysed. Comparison between TNSA and quasi-monoenergetic ions is also shown.

arXiv comment11 pages, 10 figures

References in corpus (7)

• Fast-ignition design transport studies: realistic electron source, integrated PIC-hydrodynamics, imposed magnetic fields
• Theory of Fast Electron Transport for Fast Ignition
• Fast ignition of inertial fusion targets by laser-driven carbon beams
• Fast ignition of fusion targets by laser-driven electrons
• Dynamic Control of Laser Produced Proton Beams
• Laser-plasma interactions for fast ignition
• Fast ignition driven by quasi-monoenergetic ions: Optimal ion type and reduction of ignition energies with an ion beam array

Cited by in corpus (5)

• Dense blocks of energetic ions driven by multi-petawatt lasers
• Modification of classical electron transport due to collisions between electrons and fast ions
• Geometric scaling of laser-driven proton focusing from hemispherical foils
• Acceleration and focusing of multispecies ion beam using a converging laser-driven shock
• Radiation pressure acceleration of protons from structured thin-foil targets