The article provides a kinetic description of the plasma equilibrium in the Beklemishev diamagnetic trap, where the traditional approach based on the theory of magnetic drifts is not applicable, since the ions move in a substantially non-circular orbit, the diameter of which is approximately equal to the diameter of the diamagnetic bubble. The ion distribution function was found in the collisionless approximation, neglecting the diamagnetic electron current. The radial profile of the magnetic field, the plasma density, the current density, and the components of the pressure tensor are calculated. It was found that the width of the boundary layer in the diamagnetic bubble varies from 6 to 8 Larmor radii calculated by a vacuum magnetic field. An adiabatic invariant is calculated that replaces the magnetic moment, which is not conserved in the diamagnetic bubble. The criterion of absolute confinement is formulated and the plasma equilibrium is found for the case when the adiabatic invariant is not conserved and only ions whose velocity satisfies the criterion of absolute confinement are trapped.

中文翻译：

---

关于 Beklemishev 反磁气泡中边界层的结构

这篇文章提供了 Beklemishev 反磁阱中等离子体平衡的动力学描述，其中基于磁漂移理论的传统方法不适用，因为离子在基本上非圆形的轨道上运动，其直径近似相等到抗磁气泡的直径。在无碰撞近似中发现了离子分布函数，忽略了抗磁电子流。计算磁场的径向分布、等离子体密度、电流密度和压力张量的分量。结果表明，通过真空磁场计算，反磁性气泡中边界层的宽度在 6 到 8 个拉莫尔半径之间变化。计算出替代磁矩的绝热不变量，在反磁性气泡中不守恒。当绝热不变量不守恒并且只有速度满足绝对约束条件的离子被俘获时，制定了绝对约束条件并找到了等离子体平衡。