Theory of hydro-equivalent ignition for inertial fusion and its applications to OMEGA and the National Ignition Facilitya)
Theory of hydro-equivalent ignition for inertial fusion and its applications to OMEGA and the National Ignition Facilitya)
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DOI：
10.1063/1.4875331
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发表时间：
2014-05
影响因子：
2.2
通讯作者：
R. Nora;R. Betti;K. Anderson;A. Shvydky;A. Bose;K. Woo;A. Christopherson;J. Marozas;T. Collins;P. Radha;S. X. Hu;R. Epstein;F. Marshall;R. Mccrory;T. Sangster;D. Meyerhofer
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文献类型：
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作者：
R. Nora;R. Betti;K. Anderson;A. Shvydky;A. Bose;K. Woo;A. Christopherson;J. Marozas;T. Collins;P. Radha;S. X. Hu;R. Epstein;F. Marshall;R. Mccrory;T. Sangster;D. Meyerhofer
惯性约束聚变舱点火理论[R.贝蒂等人，等离子体17，058102（2010）]用于评估欧米茄激光设施上的低温内爆实验的性能要求。水动力相似理论在一维和二维两个方面都得到了发展，并使用Hydrocode DRACO [P. B. Radha等人，等离子体12，032702（2005）]的流体等效内爆（具有相同的内爆速度、能量和激光强度的内爆）。该理论被用来衡量直接驱动欧米茄内爆的国家点火设施（NIF）的能量尺度的性能，并确定演示欧米茄水当量点火的要求。在OMEGA上的氢当量点火由低温内爆表示，该低温内爆将缩放到在NIF上以1.8 MJ的激光能量对称地照射目标的点火。结果表明，中子产额与面密度的合理组合是提高中子产额的有效途径。
The theory of ignition for inertial confinement fusion capsules [R. Betti et al., Phys. Plasmas 17, 058102 (2010)] is used to assess the performance requirements for cryogenic implosion experiments on the Omega Laser Facility. The theory of hydrodynamic similarity is developed in both one and two dimensions and tested using multimode hydrodynamic simulations with the hydrocode DRACO [P. B. Radha et al., Phys. Plasmas 12, 032702 (2005)] of hydro-equivalent implosions (implosions with the same implosion velocity, adiabat, and laser intensity). The theory is used to scale the performance of direct-drive OMEGA implosions to the National Ignition Facility (NIF) energy scales and determine the requirements for demonstrating hydro-equivalent ignition on OMEGA. Hydro-equivalent ignition on OMEGA is represented by a cryogenic implosion that would scale to ignition on the NIF at 1.8 MJ of laser energy symmetrically illuminating the target. It is found that a reasonable combination of neutron yield and areal density...