动态测量强脉冲离子束辐照产生的冲击波

Dynamic measurement of shocks induced by intense pulsed ion beam

当强脉冲离子束(Intense pulsed ion beam,IPIB)辐照材料表面时,在靶材料表面引发快速升温、熔融、气化、烧蚀以及随后的快速固化,并产生热应力与冲击波。本文通过构建并改进以聚偏二氟乙烯 (Polyvinylidene fluoride,PVDF)膜为核心的测量系统,成功地对强脉冲离子束辐照所产生的冲击波进行了动态的探测,实验测量与我们自行开发的理论模拟计算相比较,获得较好的吻合。

As intense pulsed ion beam （IPIB） irradiates the surface of target material, a series of processes such as fast heating, melting, vaporizing, ablating, and rapid resolidifying will be induced and then shocks generated. We have measured the shockwaves induced by IPIB irradiation successfully by setting up and improving our PVDF detecting system. Experimental results are in good accordance with theoretical calculations.