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热击波是电子束辐照靶材料时在其内产生材料响应的一个重要力学现象。论述了近两年来我们在“闪光二号”装置上进行电子束辐照平板靶产生热击波的实验研究。使用的靶厚为２．８～６．５ｍｍ，靶材为ＬＹ－１２铝，靶上能通量为８７～１５２Ｊ／ｃｍ￣２。实验结果表明，实测热击波应力峰值为０．３５～２．０ＧＰａ，热击波平均作用时间约为０．２９μｓ，均半高宽约为０．１４μｓ，平均上升时间约为０．１０μｓ。
Heat shock waves are an important mechanistic phenomenon in the material response within which electron beams irradiate target material. The experimental research on the thermal shock produced by the electron beam irradiation on the “Flash II” device in the last two years is discussed. The target thickness used is 2.8 ~ 6.5mm, the target is LY-12 aluminum, and the target flux is 87 ~ 152J / cm ~ 2. The experimental results show that the measured peak value of thermal shock wave is 0.35 ~ 2.0GPa, the average duration of thermal shock wave is about 0.29μs, the average FWHM is 0.14μs, and the average rise time is about 0.10μs.