NIST Physics Laboratory National Institute of Standards and Technology NIST Physics Laboratory NIST Atomic Spectroscopic Database - Iron Holdings

Choose a stage of ionization from the column on the left and a data type from the row on top. The numbers in the table indicate database holdings. Warning: Choosing a stage of ionization with many holdings (e.g., thousands) may cause your browser to time out.

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Spectrum          Energy    Wavelengths       Transition
                  Levels                   Probabilities
 All              3219          10890             5691
 Fe I              492          10890             2076
 Fe II             578              0             1032
 Fe III            551              0               93
 Fe IV             277              0              102
 Fe V              181              0               53
 Fe VI              94              0              159
 Fe VII            155              0              149
 Fe VIII            42              0               72
 Fe IX              35              0               14
 Fe X               59              0               71
 Fe XI              31              0               90
 Fe XII             49              0               92
 Fe XIII            37              0               86
 Fe XIV             26              0              138
 Fe XV              42              0              131
 Fe XVI             77              0              396
 Fe XVII            52              0               66
 Fe XVIII           66              0               26
 Fe XIX             63              0               73
 Fe XX              56              0              143
 Fe XXI             40              0              167
 Fe XXII            58              0              115
 Fe XXIII           65              0              157
 Fe XXIV            41              0              105
 Fe XXV             26              0               85
 Fe XXVI            26              0                0


Wavelength:  to  Ångströms (for wavelengths and transition probabilities data only)



 



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