Numerical simulations to model laser-driven coil-capacitor targets for generation of kilo-Tesla magnetic fields
Numerical simulations to model laser-driven coil-capacitor targets for generation of kilo-Tesla magnetic fields
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DOI：
10.1063/1.5019219
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发表时间：
2018-02
期刊：
影响因子：
1.6
通讯作者：
F. Schillaci;M. D. Marco;L. Giuffrida;S. Fujioka;Zhe Zhang;G. Korn;D. Margarone
中科院分区：
文献类型：
--
作者：
F. Schillaci;M. D. Marco;L. Giuffrida;S. Fujioka;Zhe Zhang;G. Korn;D. Margarone
线圈电容器目标建模使用有限元模拟和分析计算，这使得可以解释的时间演变过程中产生的磁场驱动的极高的电流通过与高功率激光的相互作用产生的流动，这样的复杂的目标。数值模型包括线圈电容器目标产生的磁场的详细研究，无论是在静态和瞬态的情况下，以及磁力和焦耳加热。该模型是由文献中报道的实验数据进行验证，可以为几个应用程序的兴趣。例如，两个同步纳秒激光器的组合，目的是产生负责质子-硼（p+ +11 B → 8.5 MeV + 3α）聚变反应的等离子体，并激励两个多匝线圈，主要目的是限制这种等离子体，可以提高反应速率。初步概念设计的磁镜配置用于限制质子和硼离子…
A coil-capacitor target is modeled using FEM simulations and analytical calculations, which allow to explain the time evolution of such complex target during magnetic field production driven by the flow of an extremely high current generated through the interaction with a high power laser. The numerical model includes a detailed study of the magnetic field produced by the coil-capacitor target, both in the static and transient cases, as well as magnetic force and Joule heating. The model is validated by experimental data reported in literature and can be of interest for several applications. As an example, the combination of two synchronized nanosecond lasers with the purpose of producing a plasma responsible of the proton-boron (p+ + 11B → 8.5 MeV + 3α) fusion reaction, and energizing two multi-turn coils with the main purpose of confining such a plasma could enhance the reaction rate. The preliminary conceptual design of a magnetic mirror configuration to be used for confining protons and boron ions up ...