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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research. B, Beam Interactions with Materials and Atoms >Barium L subshells Coster-Kronig and fluorescence yields by the subshell selective photoionization method
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Barium L subshells Coster-Kronig and fluorescence yields by the subshell selective photoionization method

机译：钡L子壳Coster-Kronig和通过子壳选择性光电离方法产生的荧光

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The method of selective photoionization of individual subshells by monochromatized synchrotron radiation has been employed to measure independently all Coster-Kronig and fluorescence yields of the Ba L subshells. The energy of the primary radiation was set at about 50 energy points in the range of the L edges. At each setting, the induced L fluorescence radiation was recorded by a Si(Li) detector. A pure Ti foil was used for normalization purposes and the Ti K fluorescence lines were also recorded under the same geometrical conditions as the Ba sample. Fitting the measured fluorescence intensities versus primary energy with the photoelectric cross-sections derived the Coster-Kronig coefficients and fluorescence yields. The obtained yields were compared with tabulated data.
机译：通过单色同步加速器辐射对单个子壳进行选择性光电离的方法已用于独立测量Ba L子壳的所有Coster-Kronig和荧光产率。初级辐射的能量设置在L边的范围内约50个能量点。在每种设置下，通过Si（Li）检测器记录诱导的L荧光辐射。纯钛箔用于归一化目的，并且在与Ba样品相同的几何条件下记录了Ti K荧光线。用光电横截面拟合测得的荧光强度与一次能量的关系，可以得出Coster-Kronig系数和荧光产量。将获得的产率与列表数据进行比较。

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