Abstract

Lithium ion beams are a prime driver candidate for light‐ion inertial confinement fusion. LEVIS/LIBORS lithium ion sources are being developed for the HELIA extraction ion diode. Beam diagnostics to measure beam intensity, energy, composition, and purity are also being developed. Difficulties in diagnosing the beam are encountered because the diagnostics cannot interfere with the plasma forming and ionizing lasers of the LEVIS/LIBORS source. Efforts to model the transport of lithium ions in the self‐ and applied‐magnetic fields of the HELIA ion diode as well as the calculation of beam diagnostics using the PICDIAG computer code are described. The results directly affect the choice and design of diagnostics to be fielded. Results of the simulations are presented and comparisons with available experimental data are emphasized. This work was supported by the U.S. Department of Energy under contract No. DE‐AC04‐76DP00789.

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