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There are about 2300 records up to date. The data came from the old version of the SPECTR database created in 1988-95 at Multicharged-Ion Spectra Data Center of State Research Center VNIIFTRI, Russia. The content in one record consists of element, isoelectronic sequence, notation of energy level, ionization energy (in unit of eV), method and reference for which the data are obtained. To retrieve ionization energy of an ion, one should input at least one of above items in the records. or retrieve data from the data list directly. |
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