Measurement of L subshell fluorescence yields of elements in the range 45 ⩽ Z ⩽ 50 using synchrotron radiation

The L subshell fluorescence yields ω1, ω2 and ω3 have been measured in the range 45 ⩽ Z ⩽ 50 by exciting the elemental targets with a synchrotron radiation beam at 7 keV. The characteristic L X-ray photons originating from the targets are measured with a Si(Li) detector. The L shell fluorescence yields have been determined using the experimental Lα, Lβ1, Lβ2, Lγ1 and (Lγ2 + Lγ3) X-ray production cross sections, the theoretical L subshell photoionization cross sections, the Coster–Kronig transitions yields and the fractional X-ray emission rates. The measured values of ω1, ω2 and ω3 are compared with theoretical values and with semi-empirical compilations data.