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Modeling and analysis of magnetic screening and other resistivesheath structure of wires in the Sanford effect range with improvedconductivity models

机译:磁屏蔽和其他电阻的建模与分析桑福德效应范围内的电线护套结构得到改善电导率模型

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Summary form only given, as follows. Because of array stabilityinterest, individual Al wires in the range r=6 to 12 μm and Imax=8×104 to 1.6×105 Amp arestudied by simulation with RAVEN and ALEGRA and by analysis, using I(t)forms of the Sandia Saturn generator both with and without prepulses.Qualitatively improved conductivities (σ) are employed in themodeling. Radial motion of the expanded wires is found dominated byresistive quasi-static (RQS) magnetic field behavior (skin depthsexceeding wire dimensions) because σ is greatly reduced by theMott transition, giving approximately Ez(r)=const. Then J(r)and Joule heating ~σ(r). The maximum current density, Jmax moves from the core to the corona resulting in a screening ofcores from Be and a drop in the voltage. A nearly hydrostatic balancewith the RQS J×B forces is seen except when the rapidly risingcurrent recompresses the wires
机译:仅给出摘要表格,如下。由于阵列的稳定性 有趣的是,单个铝线的范围为r = 6至12μm,最大I = 8×10 4 到1.6×10 5 安培是 通过使用RAVEN和ALEGRA进行仿真研究,并通过使用I(t)进行分析 带有和不带有预脉冲的桑迪亚土星发生器的各种形式。 定性地提高了电导率(σ) 造型。发现膨胀线的径向运动主要由 电阻准静态(RQS)磁场行为(趋肤深度) 超过线径),因为σ大大降低了 莫特跃迁,给出大约E z (r)= const。然后J(r) 和焦耳加热〜σ(r)。最大电流密度J max 从核心移动到电晕,从而对 磁芯从Be和电压下降。几乎静水压力的平衡 带有RQS的J×B力,除了快速上升时 电流重新压缩电​​线

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