The helical instability problem of an arc plasma column with a parabolic current profile in a magnetic field is discussed.
讨论了具有抛物线形电流分布的电弧等离子体柱在磁场中的不稳定性问题。
A simplified linear analysis of the helical instability of arc plasmas is given. Explicit analytic results are obtained.
给出了具有抛物形电导率分布的电弧螺旋不稳定性的一个简化线性分析，得到了显式解析解。
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