Imploding Liner Stabilization Experiments on the SNOP‐3 Generator
Imploding Liner Stabilization Experiments on the SNOP‐3 Generator
复制标题
SNOP-3 发生器内爆衬管稳定性实验
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
S. Chaikovsky
中科院分区：
文献类型：
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作者：
S. Sorokin;S. Chaikovsky
在 SNOP-3 发生器（Im ≃ 1.1 MA，Τ ≃ 100 ns）上的实验中，使用了除了引入初始轴向磁场之外的一些等离子体线稳定方法。螺旋电流返回棒用于在内爆开始时稳定衬管（环形气体喷流）。使用时间积分针孔相机观察到氪内衬的 50 倍稳定径向压缩。从稳定的高半径比内衬内爆和从发生器到质量 m < m1 的等离子体箍缩的有效能量传输的角度来看，具有初始磁场的双壳内衬很有吸引力（m1 是在电流脉冲峰值时内爆内衬所需的内衬质量）。模型 进行了壳体运动动力学的零维计算和双壳体内衬内爆实验。稳定压缩氩气内壳的半径经测量为 50–60 μm（初始半径为 5 mm）。使用以下公式估算最大磁场 Bm ≃ 6000 T：
Some methods of the plasma liner stabilization in addition to entraining of an initial axial magnetic field were used in the experiments on the SNOP‐3 generator (Im ≃ 1.1 MA, Τ ≃ 100 ns). Helical current return rods were used to stabilize the liner (annular gas puff) at the beginning of the implosion. A 50‐fold stable radial compression of the krypton liner was observed using a time‐integrated pinhole camera.Double shell liners with an initial magnetic field are attractive from the viewpoint of stable high‐radius‐ratio liner implosions and efficient energy transfer from the generator to the plasma pinch of mass m < m1 (m1 is the liner mass required to implode the liner at the peak of the current pulse).Model 0‐dimensional calculations of the motion dynamics of the shells and experiments on double shell liner implosions were perfomed. The radius of a stable compressed argon inner shell was measured to be 50–60 μm (at an initial radius of 5 mm).The maximum magnetic field Bm ≃ 6000 T was estimated using the ...