Three-photon ionization cross section calculations of Be
作者： X Tang , H Bachau
DOI: 10.1088/0953-4075/26/1/007
关键词: Cross section (physics) 、 Atomic physics 、 Electron 、 Physics 、 Photon 、 Ground state 、 Basis set 、 Ionization 、 Basis function 、 Photoionization
摘要: Three-photon perturbative photoionization cross sections from the ground state of beryllium have been calculated employing B-spline basis functions. Two-photon ionization are also and compared to other L2 set calculations. Various approximations for 1s2 core discussed, calculations performed in velocity length gauges including electron correlations.
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