High-resolution absolute photoabsorption cross sections for Ne in the 1s2s and 1s2p resonant double excitation
High-resolution absolute photoabsorption cross sections for Ne in the 1s2s and 1s2p resonant double excitation
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DOI：
10.1088/0953-4075/39/8/021
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发表时间：
2006-04
期刊：
影响因子：
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通讯作者：
Masahiro Kato;Y. Morishita;F. Koike;S. Fritzsche;H. Yamaoka;Y. Tamenori;K. Okada;T. Matsudo;
中科院分区：
文献类型：
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作者：
Masahiro Kato;Y. Morishita;F. Koike;S. Fritzsche;H. Yamaoka;Y. Tamenori;K. Okada;T. Matsudo;
用多电极电离室和单色化同步辐射测量了Ne原子1 s2 p/1 s2 s双激发在900-940 eV能量范围内的高分辨绝对光吸收截面和绝对光子能量标度。本文用多组态Dirac-Fock方法对Ne [1 s2 p]（3，1 P）nln′l′双激发态进行了理论计算和分析。在这个能量区域中的第二强峰被指定为[1 s2 p]（3 P）3 p4p。
The high-resolution absolute photoabsorption cross sections with an absolute photon energy scale for Ne 1s2p/1s2s double excitation in the energy region of 900–940 eV have been measured using a multi-electrode ionization chamber and monochromatized synchrotron radiation. The Ne [1s2p](3,1P)nln′l′ doubly excited states observed in the energy range of 900–920 eV are analysed with the aid of theoretical calculations based on the multiconfiguration Dirac–Fock method. The second strongest peak in this energy region is assigned to be [1s2p](3P)3p4p.