Numerical performance assessment of double-shell targets for Z-pinch dynamic hohlraum

• DOI: 10.1063/5.0079074
• Publication Date: 2022-04-28T13:09:50Z
• Authors: Y. Y. Chu; Z. Wang; J. M. Qi; Z. P. Xu; Z. H. Li
• Keywords: Hohlraum; Implosion; Z-pinch; National Ignition Facility

A Z-pinch dynamic hohlraum can create the high-temperature radiation field required by indirect-drive inertial confinement fusion. with peak temperature over 300 eV be obtained a >50 MA driver according to scaling law of vs drive current. Based on uniform profile width 10 ns, three double-shell capsules radii 2, 2.5, and 3 mm are proposed, corresponding fusion yields from one-dimensional calculation 28.8, 56.1, 101.6 MJ. The implosion dynamics 2.5 mm-radius capsule is investigated in detail. At ignition, areal density fuel about 0.53 g/cm2, pressure 80 Gbar, central ion 4.5 keV, simulation. two-dimensional simulation indicates that implode nearly spherically when driven hohlraum. sensitivities performance profiles deviations parameter through simulation, it found rather stable quite large space. embedded 50 mg/cm3 CH foam does not change greatly mimicked environment designed here also applicable laser fusion, if facility produce sustain for ns.