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热耦合系数在激光与物质相互作用中扮演着重要的角色。引入非线性规划方法,根据测量到的靶材某一表面的温度历史曲线构造非线性规划模型,通过对非线性规划问题的求解确定随温度变化的热耦合系数。并利用此方法给出了某种材料的热耦合系数随温度的变化关系,曲线常温点(300 K)对应的热耦合系数与光谱扫描仪测量的结果基本一致,表明这种思想方法是有效的。
Thermal coupling coefficient plays an important role in the interaction between laser and matter. A nonlinear programming method is introduced. According to the measured temperature history curve of a certain surface of the target, a nonlinear programming model is constructed. By solving the nonlinear programming problem, the thermal coupling coefficient with temperature is determined. The relationship between the thermal coupling coefficient and the temperature of a certain material is given by this method. The thermal coupling coefficient corresponding to the normal temperature point (300 K) of the curve is basically the same as that of the spectrometer, which shows that this method is effective .