L-Shell X-Ray Production Cross Sections of Au and Ir Atoms by Electron Impact near the Threshold Region |
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作者姓名: | 吴章文 杨代伦 罗小兵 何福庆 彭秀峰 罗正明 |
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作者单位: | KeyLaboratoryforRadiationPhysicsandTechnologyofEducationMinistryofChinaInstituteofNuclearScienceandTechnology,SichuanUniversity,Chengdu610064 |
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摘 要: | L-shell production cross sections Lα, Lβ and Lγ for Au and Ir atoms have been measured by electron impact at incident electron energies of about one to three times of the threshold energy. The total production cross section and mean ionization cross section were obtained from the experimental results and by using mean fluorescence yield, respectively. The influence of electrons reflected from the substrate and multiple electron scattering inside the target have been corrected. The experimental results are compared with the existing measured results and the theoretical predictions.
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关 键 词: | L-壳体 X射线 金原子 铱原子 电子冲击 横截面 电离 原子物理学 |
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