Spectral-luminescent properties of actinides in elpasolite structure

Absorption, luminescence and self-luminescence spectra of transuranium elements (Np3+, Am3+, Cm3+) doped into Cs2NaLnCl6 (Ln = La, Lu) crystals are presented. In the case of Am3+ an attempt was made to investigate luminescence excitation mechanisms. One of the luminescence features characteristic of the Am and Cm doped elpasolites appears to be dominant green glow. The octahedral ligand-field calculations were performed by the pair interaction method. The main properties of f-f transition spectra in crystals of elpasolite type are discussed. (author) 8 refs.; 9 figs.; 1 tab