In the field of fast ignition scheme, self-generated magnetic fields via beam resistive filamentation have a significant role in the angular divergence of the relativistic electron beam, which can be affected by the intensity of other self-generated magnetic fields. In this context, the effects of pressure gradient sources arising from temperature and density gradient of the pellet along the beam flow direction are investigated. The results showed that the resistive filamentation instability can be strongly amplified compared to the fully homogeneous plasma. In this respect, for the distance away from the critical surface, the instability is protected for a longer wave number. Also, the beam and plasma properties such as the beam relativistic factor, the beam number density, and the degree of the plasma temperature anisotropy might be effective.

中文翻译：

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自生压力梯度源对电阻丝化不稳定性影响的研究

在快速点火方案领域，通过束电阻丝状结构的自生磁场对相对论电子束的角发散具有重要作用，该角发散会受到其他自生磁场强度的影响。在这种情况下，研究了沿束流方向由颗粒的温度和密度梯度引起的压力梯度源的影响。结果表明，与完全均匀的等离子体相比，电阻丝化不稳定性可以被强烈放大。在这方面，对于远离临界表面的距离，对于更长的波数，不稳定性受到保护。此外，光束和等离子体属性，例如光束相对论因子、光束数密度和等离子体温度各向异性程度可能是有效的。