NIST Physical Measurement Laboratory Handbook of Basic Atomic Spectroscopic Data

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Homepage - IntroductionFinding listSelect element by name.Select element by atomic number.Select element from periodic tableNeptunium Atomic DataNeptunium Strong LinesNeptunium Neutral Atom Persistent Lines Neptunium Neutral Atom Energy LevelsNeptunium Singly Ionized Persistent LinesNeptunium Singly Ionized Energy LevelsNeptunium References
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References and Notes for Neptunium ( Np )

BW92b     J. Blaise and J.-F. Wyart, Energy Levels and Atomic Spectra of Actinides, International Tables of Selected Constants 20, Paris (1992). Also available at http// The authors note that the Np II energy-level analysis is preliminary. Only one Np II line is given with an energy-level classification.

FTBC76    M. Fred, F. S. Tomkins, J. E. Blaise, P. Camus, and J. Vergés, Argonne Natl. Lab. Rep. No. 76-68 (1976). 

KDEE97    S. Köhler, R. Diessenberger, K. Eberhardt, N. Erdmann, G. Herrmann, G. Huber, J. V. Kratz, M. Nunnemann, G. Passler, P. M. Rao, J. Riegel, N. Trautmann, and K. Wendt, Spectrochim. Acta B 52, 717 (1997).