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Mean Life Measurements for Some Energy Levels of O I–O VI
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1974
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EngineeringNuclear PhysicsMeasurementOxygen IsotopeNonclosed ShellType 1SChemistryMean Life MeasurementsReactive Oxygen SpeciesElectronic StructureElectron SpectroscopyO I–o ViInstrumentationEnergy LevelsPhysicsMean LivesNuclear TheoryAtomic PhysicsQuantum ChemistryNatural SciencesApplied PhysicsIon Structure
We have extended and clarified previous beam foil studies of oxygen below 2000 Å. Mean lives are presented for 63 transitions for the ions O I–O VI, which provide clarification or confirmation of their values for 36 levels, and first measurements of the mean lives of 5 others. Comparison is made with recent results from a variety of experimental and theoretical techniques and, in particular, good agreement is generally found with the nonclosed shell many electron theory of Nicolaides and Sinanoğlu. A brief discussion is given of the dependence on Z −1 of the f values for transitions of the type 1s 2 2s 2 2p n –1s 2 2s2p n +1 along sequences isoelectronic with B I, C I, and N I. The 3 P– 3 P 0 and 3 P– 3 S 0 transitions along the C I sequence are presented in detail.