Measurement of the radiative L3-M vacancy transfer probabilities of some 4f elements and compounds using Indus-2 synchrotron radiation

Highlights: • The intensity ratios and radiative L₃-M vacancy transfer probabilities are measured. • The measured intensity ratios do not depend on crystal structure. • The radiative L₃-M vacancy transfer probabilities may depend on crystal structure. • More synchrotron data is needed to verify the dependence of crystal structure. The L X-ray intensity ratios (I_Lα/I_Ll, I_Lα/I_Lβ, I_Lα/I_Lγ) and the radiative L₃-M vacancy transfer probabilities (η_L3-M) of some 4f elements such as Gd, Tb, Ho and compounds; Pr₂O₃, Pr₂(CO₃)₃·8H₂O, Nd₂O₃, Sm₂O₃, Sm₂(CO₃)₃·2.85H₂O, Sm₂(SO₄)₃·8H₂O, Gd₂(CO₃)₃, Tb₂O₃, Dy₂(SO₄)_3, Ho₂O₃ and HoF₃ have been measured using Indus-2 synchrotron radiation. The elements and compounds are excited by synchrotron radiation and the emitted characteristic L X-ray photons are measured with high resolution silicon drift detector. The measured intensity ratios of compounds are not influenced by the chemical environment. However, the η_L3-M values of compound targets indicate the effect of crystal structure.