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30多年前Stanford大学的博土生J.M.Madey提出～([1])自由电子激光(FEL),时至今日这一直是一个不断取得重要进展～([2])的科学领域。由短波长(高增益)自由电子激光途径发展第四代光源又是该领域最重要的方向,在分子环境科学、分子反应动力学、纳米科技和生命科学等许多科学和技术领域具有广泛诱人的应用前
More than 30 years ago J.M. Madey of Stanford University proposed ~ ([1]) free-electron lasers (FEL), which until now has been a field of science that continues to make major strides ~ ([2]). The development of fourth-generation light sources by short-wavelength (high-gain) free-electron laser approaches is the most important direction in this area with a wide range of attractiveness in many scientific and technological fields such as molecular environmental science, molecular reaction kinetics, nanotechnology and life sciences Before the application