论文标题

极地直接驱动器爆炸推动器平台的射击器的比较

Comparison of ablators for the polar direct drive exploding pusher platform

论文作者

Whitley, Heather D., Kemp, G. Elijah, Yeamans, Charles, Walters, Zachary, Blue, Brent E., Garbett, Warren, Schneider, Marilyn, Craxton, R. Stephen, Garcia, Emma M., McKenty, Patrick W., Gatu-Johnson, Maria, Caspersen, Kyle, Castor, John I., Däne, Markus, Ellison, C. Leland, Gaffney, James, Graziani, Frank R., Klepeis, John, Kostinski, Natalie, Kritcher, Andrea, Lahmann, Brandon, Lazicki, Amy E., Le, Hai P., London, Richard A., Maddox, Brian, Marshall, Michelle, Martin, Madison E., Militzer, Burkhard, Nikroo, Abbas, Nilsen, Joseph, Ogitsu, Tadashi, Pask, John, Pino, Jesse E., Rubery, Michael, Shepherd, Ronnie, Sterne, Philip A., Swift, Damian C., Yang, Lin, Zhang, Shuai

论文摘要

我们研究了极性直接驱动器爆炸推动器(PDXP)平台中纯硼,碳化钾,高密度碳和硝化硼的性能。该平台在国家点火设备上使用极性直接驱动配置来驱动室温胶囊中的高离子温度,并在等离子体物理学研究和中子来源中具有潜在的应用。与塑料相比,这些材料的较高拉伸强度使较薄的散热器能够支撑更高的气体压力,这可以帮助优化其在血浆物理实验的性能,而含有硼的烧蚀器则可以将添加数据收集到平台模型的约束模型的可能性。应用最近开发和实验验证的硼材料状态模型方程式,我们研究了这些材料作为2D模拟中的烧蚀物的性能,特别关注对射精和气体气体密度的变化,以及固有2D内爆的预测对称性。

We examine the performance of pure boron, boron carbide, high density carbon, and boron nitride ablators in the polar direct drive exploding pusher (PDXP) platform. The platform uses the polar direct drive configuration at the National Ignition Facility to drive high ion temperatures in a room temperature capsule and has potential applications for plasma physics studies and as a neutron source. The higher tensile strength of these materials compared to plastic enables a thinner ablator to support higher gas pressures, which could help optimize its performance for plasma physics experiments, while ablators containing boron enable the possiblity of collecting addtional data to constrain models of the platform. Applying recently developed and experimentally validated equation of state models for the boron materials, we examine the performance of these materials as ablators in 2D simulations, with particular focus on changes to the ablator and gas areal density, as well as the predicted symmetry of the inherently 2D implosion.

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