A new satellite in the L X-ray emission spectrum of lutetium-71

Abstract

Using a 40 cm curved mica crystal spectrograph of the transmission (Cauchois) type, a new satellite β14 has been observed at λ = 1408.3 X unit (Xu) in the L X-ray emission spectrum of lutetium-71 for the first time. On the basis of Wentzel's multiple ionization theory the new satellite has been assigned to the transition L2M4 → M4M4. Further, the presence of the satellites αx, β21, and γ1′ in the spectrum of lutetium reported by earlier workers, has been confirmed and these satellites have been assigned to the transitions L3M2 → M2M5, L3M5 → M5N5, and L2M4 → M4N4, respectively.