Experiments applying laser-driven magnetic-flux compression to inertial confinement fusion (ICF) targets to enhance the implosion performance are described. Spherical plastic (CH) targets filled with 10 atm of deuterium gas were imploded by the OMEGA Laser, compare Phys. Plasmas 18, 056703 or Phys. Plasmas 18, 056309. Before being imploded, the targets were immersed in an 80-kG magnetic seed field. Upon laser irradiation, the high implosion velocities and ionization of the target fill trapped the magnetic field inside the capsule, and it was amplified to tens of megagauss through flux compression. At such strong magnetic fields, the hot spot inside the spherical target was strongly magnetized, reducing the heat losses through electron confinement. The experimentally observed ion temperature was enhanced by 15%, and the neutron yield was increased by 30%, compared to nonmagnetized implosions [P. Y. Chang, Phys. Rev. Lett. 107, 035006 (2011)]. This represents the first experimental verification of performance enhancement resulting from embedding a strong magnetic field into an ICF capsule. Experimental data for the fuel-assembly performance and magnetic field are compared to numerical results from combining the 1-D hydrodynamics code LILAC with a 2-D magnetohydrodynamics postprocessor.
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机译:描述了将激光驱动的磁通量压缩应用于惯性约束聚变(ICF)目标以增强内爆性能的实验。用OMEGA激光对充满10 atm氘气的球形塑料(CH)靶进行内爆。 Plasmas 18,056703或Phys。等离子18,056309。在爆炸之前,将靶子浸入80kG的磁场中。在激光照射下,目标填充物的高内爆速度和电离作用将胶囊内的磁场捕获,并通过通量压缩将其放大到数十兆高斯。在如此强的磁场下,球形靶材内部的热点被强烈磁化,从而通过电子约束减少了热损失。与非磁化内爆相比,实验观察到的离子温度提高了15%,中子产率提高了30%[P. Y. Chang,物理牧师107,035006(2011)]。这代表了通过将强磁场嵌入ICF胶囊而产生的性能增强的首次实验验证。通过将一维流体动力学代码LILAC与二维磁流体动力学后处理程序相结合,将燃料组件性能和磁场的实验数据与数值结果进行了比较。
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机译:用等离子体约束实现重力场的动态控制热核聚变(TLTS)方法,通过热辐射等离子体绝缘的壁反应堆防止中子辐射并节省磁场和等离子体的混合,使用旋转磁场的异步磁惯性约束反应堆(AMITYAR和HFM)为实施该方法,在该反应器中点燃热核反应的方法,爆炸式等离子发生器(VIP)的实施方法,以及具有HFM的特立普安瓿,以实现D + T反应和具有超高温热度的HFM D +3НЕ和1Н+11В的高温反应