Measurement of L X-ray fluorescence cross sections and relative intensities for some elements in the atomic range 78 ≤ Z ≤ 92

The L X-ray fluorescence cross sections (σLl, σLα, σLη, σLβ, σLβ6, σLβ2,4, σLβ1,3, σLβ9,10, σLγ, σLγ1, σLγ2,3, σLγ4 and σLγ5) and relative intensities (ILα, ILl, ILη, ILβ, ILβ6, ILβ2,4, ILβ1,3, ILβ9,10, ILγ, ILγ1, ILγ2,3, ILγ4 and ILγ5) for some elements in the atomic range 78 ≤ Z ≤ 92 have been measured at 59.54 keV photons energies from an Am-241 point source. The L X-rays emitted by samples have been counted by a Si(Li) detector. The L X-ray fluorescence cross sections and relative intensities have been also calculated theoretically by using atomic parameters. The measured values have been compared with the theoretical values.