Numerical performance assessment of double-shell targets for Z-pinch dynamic hohlraum
作者机构：Institute of Nuclear Physics and ChemistryChina Academy of Engineering PhysicsMianyang 621900China
出 版 物：《Matter and Radiation at Extremes》 (极端条件下的物质与辐射（英文）)
年 卷 期：2022年第7卷第3期
页 面：10-19页
核心收录：
学科分类：082704[工学-辐射防护及环境保护] 08[工学] 0827[工学-核科学与技术] 0702[理学-物理学]
主 题：dynamic double performance
摘 要：A Z-pinch dynamic hohlraum can create the high-temperature radiation field required by indirect-drive inertial confinement fusion.A dynamic hohlraum with peak radiation temperature over 300 eV can be obtained with a50 MA Z-pinch driver according to the scaling law of dynamic hohlraum radiation temperature vs drive *** on a uniform 300 eV radiation temperature profile with a width of 10 ns,three double-shell capsules with radii of 2,2.5,and 3 mm are proposed,and the corresponding fusion yields from a one-dimensional calculation are 28.8,56.1,and 101.6 *** implosion dynamics of the 2.5 mm-radius capsule is investigated in *** ignition,the areal density of the fuel is about 0.53 g/cm^(2),the fuel pressure is about 80 Gbar,and the central ion temperature is about 4.5 keV,according to the one-dimensional simulation.A two-dimensional simulation indicates that the double-shell capsule can implode nearly spherically when driven by the radiation field of a Z-pinch dynamic *** sensitivities of the fusion performance to the radiation temperature profiles and to deviations in the capsule parameter are investigated through one-dimensional simulation,and it is found that the capsule fusion yields are rather stable in a quite large parameter space.A one-dimensional simulation of a capsule embedded in 50 mg/cm^(3)CH foam indicates that the capsule performance does not change greatly in the mimicked environment of a Z-pinch dynamic *** double-shell capsules designed here are also applicable to laser indirect-drive inertial fusion,if a laser facility can produce a uniform 300 eV radiation field and sustain it for about 10 ns.
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