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本文叙述了在ＨＬ－１Ｍ中用激光吹气技术进行的金属杂质实验及杂质输运特性的研究。给出了真空紫外光谱（ＶＵＶ）、可见光谱线辐射亮度和软Ｘ射线辐射强度随时间的演变。用杂质输运代码和实验数据进行了数值模拟，通过模拟曲线和测试波形的拟合，给出了等离子体杂质扩散系数Ｄ（ｒ）和向内的对流速度Ｖ（ｒ），用光谱辐射强度特征衰减时间得到了杂质约束时间τｉｍｐ。
This paper describes the experiments of metal impurities and impurity transport in HL-1M by using the laser blowing technique. The evolvement of vacuum ultraviolet (VUV) spectroscopy, visible spectral line radiation intensity and soft X-ray radiation intensity with time are given. The impurity transport code and experimental data were numerically simulated. The diffusion coefficient D (r) of plasma impurity and the inward convection velocity V (r) were given by fitting the simulated curve and the test waveform. The spectral radiance The characteristic decay time is the impurity confinement time τimp.