Measurement Of X-ray Multielectron Photoexcitations At The I~- K Edge

Paola D; Angelo; Andrea Zitolo; Valentina Migliorati; Nicolae Viorel Pavel

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Measurement Of X-ray Multielectron Photoexcitations At The I~- K Edge

机译：在I〜-K边缘测量X射线多电子光激发

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We report the direct measurement by x-ray-absorption spectroscopy of the complete spectrum of multielectron excitations at the I~- K edge. The photoabsorption cross section of crystalline tetramethylammonium iodide was measured at 28, 50, and 150 K, and room temperature. The latter spectrum has been found to be largely dominated by the opening of multielectron excitation channels, thus providing a very good model of the I~-atomic background which can be used in the analysis of ionic iodine compounds. Features due to the simultaneous excitations 1s5p, 1s5s, 1s4d, 1s4p, 1s4s, 1s3d, and 1s3p have been recognized, and their identification is supported by previous experimental and theoretical determinations on Xe and HI.

机译：我们报告通过X射线吸收光谱法直接测量I〜-K边缘的多电子激发的完整光谱。在28、50和150 K以及室温下测量结晶的四甲基碘化铵的光吸收截面。已经发现，后者的光谱在很大程度上由多电子激发通道的开放所主导，因此提供了可用于离子碘化合物分析的非常好的I〜原子背景模型。由于同时激发1s5p，1s5s，1s4d，1s4p，1s4s，1s3d和1s3p而引起的特征已被识别，并且它们的识别得到先前在Xe和HI上的实验和理论确定的支持。

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《Physical review》 |2008年第14期|119-124|共6页
作者
Paola D; Angelo; Andrea Zitolo; Valentina Migliorati; Nicolae Viorel Pavel;
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正文语种 eng
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X-ray spectra; photoionization of atoms and ions; X-ray spectra;

机译：X射线光谱;原子和离子的光电离;X射线光谱;

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Measurement Of X-ray Multielectron Photoexcitations At The I~- K Edge

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