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摘要: 用炸药透镜加载装置观察到置于氦气与氩气中的电探针回路有不同的导通现象。基于一维冲击波和局域热平衡假设，分别计算了两种气体的冲击状态参数。当飞片速度在3～5 km/s范围时，理论估算的氩气电离度超过1%，这说明氩气的电离已引起了探针回路的提前接通，而氦气几乎没有电离，对探针能起到很好的保护作用。Abstract: Different signals from pins in shock-heated gaseous helium and argon were observed. Assuming that shock wave in gases was one-dimensional and local equilibrium of thermodynamic was reached during shock loading, the state parameters of these two gases were calculated. It is shown that ionization degree for argon exceed 1% when the velocities of flyers ranged from 3 to 5 km/s, this ionization may cause pins shortening before flyers impact pins. However, helium gas was hardly ionized, in which pins work normally.
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Key words:
- shock wave /
- pins /
- inert gases /
- ionizati on degre
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