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中文摘要：
采用孤立实激发与自电离探测技术相结合的方法对Sm原子偶宇称高激发态进行了系统研究.按照不同的自电离通道将所测数据进行了分类和比较,并进行了详细讨论.不仅报道了许多收敛于不同电离限的Rydberg态的能级位置和跃迁的相对强度等信息,而且还把处于同一能域内的Rydberg态和价态进行了辨识.另外,不但提供了一种有效识别不同类型的高激发态的鉴别技术,而且还对处于41800cm-1到43800cm-1能域内的Rydberg态和价态的光谱特性进行了详细分析和讨论.
英文摘要：
Isolated-core excitation and autoionization detection method are combined to measure even-parity high-lying excited states of Sm atom.The experimental results are classified and discussed in detail in the light of different autoionization channels.With the information of energy levels and their relative intensities converging to different thresholds,the Rydberg states are identified from the valence states in the same region.In addition,with the effective technique to recognise different types of high-lying states,the spectroscopic properties of Rydberg states and valence states in the region between 41800 cm^-1 and 43800 cm^-1 are discussed and analyzed in detail.
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