The presence of Weibel instability in laser‐irradiated fuel could be detrimental to the process of ablative implosion, which is necessary for achieving thermonuclear fusion reactions. In this paper, the effect of the Coulomb collisional within the turbulent plasma on the Weibel instability growth rate has been investigated for linear and circular polarization. The results indicate that the Weibel instability growth rate at circular polarization near the ignition centre of the fuel fusion (collisional plasma) is about 10⁵ times higher than the collisional Weibel instability growth rate at linear polarization. The Weibel instability growth rate is observed near the critical density of the fuel fusion (collisionless plasma) at linear polarization and enhancement near the foot of the heat in front of the fuel fusion. By increasing the steps of the density gradient plasma in the low‐density corona, electromagnetic instability occurs at a higher stress flow. Therefore, the deposition condition of electron beam energy in circular polarization of turbulent plasma can be shifted to the fuel core for suitable ignition.

中文翻译：

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库仑碰撞对湍流等离子体中电磁波传播的影响研究

激光辐照燃料中存在Weibel不稳定性可能对烧蚀内爆的过程有害，这对于实现热核聚变反应是必不可少的。本文针对线性和圆极化研究了湍流等离子体中库仑碰撞对Weibel失稳增长率的影响。结果表明，燃料聚变（碰撞等离子体）点火中心附近的圆极化处的威贝尔不稳定性增长率约为10 ^5。比线性极化下的Weibel碰撞不稳定性增长速率高10倍。在线性极化下，在燃料熔合的临界密度（无碰撞等离子体）附近观察到了Weibel不稳定增长率，在燃料熔合前的热量足附近，Weibel不稳定增长率得到了提高。通过增加低密度电晕中密度梯度等离子体的阶跃，在较高的应力流下会发生电磁不稳定。因此，湍流等离子体的圆极化中的电子束能量的沉积条件可以转移到燃料芯以进行适当的点火。