Investigating the L emission spectrum of terbium 65 experimentally, the existence of the quadrupole lines λλ1711.99, 1552.87 x.u. corresponding to the transitions LIIINIII and LIINIII respectively, the nonquadrupole line λ1427.12 x.u. corresponding to the transition LIIMV and the octupole line λ1765.13 x.u. due to the transition LIIMV has been established for the first time. Also, the dipole lines LIIOI (γ8), LIIOIV (γ6), and LIIIOIV,V(β5) and the quadrupole line due to the transition LIOIV,V reported so far only by Sakellaridis have been confirmed. However, the line LIIMI(η) also reported by Sakellaridis could not be confirmed.
Experimental determination of line energies, line widths and relative transition probabilities of the Gadolinium L x-ray emission spectrum