Abstract
155 emission lines of lutecium have been recorded by means of Fourier Transform Spectrometry in the spectral range 2692-10 082 cm-1. The magneticAand electricBhyperfine constants of the combining levels have been measured for 40 lines, and have led to a revision and extension of the energy level scheme. The configurations 5d26sand 5d6s6phave been completed; the first levels of 6s27p, 5g6s2and 5d26pare identified at 29 432, 39 336 and 40 558 cm-1respectively.