Experimental determination of L subshell fluorescence yields of Ba, La and Pr using synchrotron radiation

L subshell fluorescence yields ω1, ω2 and ω3 have been measured for Ba, La and Pr elemental targets. The characteristic L X-ray photons, induced in the targets by synchrotron radiation, were measured with a Si(Li) detector coupled to multichannel analyzer. Measured L subshell fluorescence yields have been compared with theoretical values, compilation data and other experimental data.