Thin lens simulations of inertial confinement fusion focusing systems for light ions

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.358701· OSTI ID:165063

Olson, J C; Kusse, B R ^[1]

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1. Laboratory of Plasma Studies, Cornell University, Ithaca, New York 14853 (United States)

Systems for focusing a light ion beam onto an inertial confinement fusion (ICF) target are studied using a thin lens model to compute ion trajectories. Three focusing systems are analyzed. The systems are (1) an uncorrected single focusing lens; (2) a focusing lens with chromatic correction due to the self magnetic field of the beam; and (3) the combination of a focusing lens, a defocusing lens for divergence correction, and chromatic correction from the beam`s self field. Systems (2) and (3) both produce energy efficiencies of greater than 50% for transporting an ion beam with 6 mrad divergence over 4 m and focusing it onto a 1 cm radius target. The predictions of the thin lens model are compared to predictions made by codes using numerical integration of particle trajectories. The implications for ICF applications are discussed. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

• OSTI ID: 165063
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 7 Vol. 77; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM FOCUSING MAGNETS
CHROMATIC ABERRATIONS
CORRECTIONS
INERTIAL CONFINEMENT
LENSES
LIGHT IONS
PLASMA SIMULATION
TRAJECTORIES