Ion Track Technology

PhysicsConsult

Reimar Spohr

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Lifetime Measurements of the Metastable 1s2s2p 4P5/2 State in Lithium-Like N, O, and Ne. K.O. Groeneveld, R. Mann, G. Nolte, S. Schumann, R. Spohr. Physics Letters A 54(1975)335 - 336.

Lifetimes of the metastable three electron 1s2s2p 4P5/2 state have been studied with a time-of-flight beam-foil technique. The lifetimes were measured to be 53.5 +/- 13, 20.0 +/- 3 and 10.4 +/- 1.5 nsec for nitrogen, oxygen and neon respectively. Lifetimes and energies of this state are in excellent agreement with theoretical values.