| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1885854 | Radiation Physics and Chemistry | 2016 | 4 Pages |
•Only the Lα X-rays are found to be spatially anisotropic in the measurement.•The alignment of L3-subshell is influenced by vacancy transfer process.•Different alignment behaviors in previous work have been clarified.
The characteristic X-ray intensities of Ag-Lα, Lβ1, Lβ2 and Lγ1 are measured in electron-impact ionization at energy of 10 keV. The emission angle in this work ranges from 0° to 20° at interval of 5°. The angular dependence of L X-ray intensity ratios has been investigated for Lα / Lβ1, Lβ2 / Lβ1 and Lγ1 / Lβ1. It is found from the experimental results that the emissions of Lβ1, Lβ2 and Lγ1 X-rays are spatially isotropic, while the Lα X-rays exhibit anisotropic emission. Consequently, the alignment behavior of vacancy states is discussed with thorough analysis of vacancy transfer process.
