A new satellite in the L-X-ray emission spectrum of erbium-68

Abstract

Using a 40 cm curved mica crystal spectrograph of the transmission (Cauchois) type, a new satellite Lα5 at λ = 1769.0 xu has been reported for the first time in the L emission spectrum of erbium. On the basis of Wentzel's multiple ionization theory, the satellite has been assigned to the transition L3M1 → M1M5. The presence of the satellites αx, β1′, β2I, and γ1′, reported by earlier workers, has been confirmed. The assignment of the transitions to these satellites by Nigam et al. has been critically examined and finally these have been assigned to the transitions L3M2 → M2M5, L2M1 → M1M4, L3M5 → M5N5, and L2M4 → M4N4 respectively.