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ＢａＦ２：Ｄｙ（３＋）晶体有两个系列的发射光谱，在Ｘ射线激发下，跃迁自高激发态的发射系列消失，根据Ｘ射线激发下发光强度随Ｄｙ（３＋）浓度和温度的变化，讨论了光谱的变化与本征发射间的联系。
There are two series of emission spectra of BaF2: Dy (3+) crystal. After X-ray excitation, the emission series disappear from the high excited state. According to the variation of the emission intensity with the Dy (3+) concentration and temperature under X-ray excitation The relationship between the change of the spectrum and the intrinsic emission.