Simulations anticipate increased perturbation growth from non-uniform laser heating for magnetized direct-drive implosions. At the capsule pole, where the magnetic field is normal to the ablator surface, the field remains in the conduction zone and suppresses non-radial thermal conduction; in unmagnetized implosions this non-radial heat-flow is crucial in mitigating laser heating imbalances. Single-mode simulations show the magnetic field particularly amplifying short wavelength perturbations, whose behavior is dominated by thermal conduction. The most unstable wavelength can also become shorter. 3D multi-mode simulations of the capsule pole reinforce these findings, with increased perturbation growth anticipated across a wide range of scales. The results indicate that high-gain spherical direct-drive implosions require greater constraints on the laser heating uniformity when magnetized.

中文翻译：

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磁化直接驱动的ICF胶囊：由于不均匀的激光驱动而增加的不稳定性增长

模拟预计，由于磁化直接驱动内爆的不均匀激光加热，扰动将增加。在磁场垂直于消融器表面的胶囊极处，该磁场保留在传导区域中，并抑制了非径向热传导。在非磁爆内爆中，这种非径向热流对于缓解激光加热不平衡至关重要。单模仿真表明，磁场尤其会放大短波长扰动，其行为主要由热传导决定。最不稳定的波长也会变短。胶囊磁极的3D多模式模拟进一步强化了这些发现，并预计在更大范围内会增加扰动增长。