Transition probabilities for Kr I lines from wall-stabilized arc measurements

Wolfgang Ernst, E. Schulz-Gulde

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Transition probabilities for 23 Kr I lines between 431.9 and 892.9 nm pertaining to the 5s-5p and 5s-6p transition arrays were obtained from wall-stabilized arc measurements analyzed under the assumption of a Saha-Boltzmann relationship between the electron density and the population densities of the excited Kr I levels. The electron density (ne=5×1015−2.2×1017cm-3) was calculated from the measured emission coefficient for continuum radiation at 456.1 nm. The electron temperature (T=9500−17 000 K) was determined from measurements of the Kr I 811.3 nm center line intensity by using Kirchhoff's law. The experimental transition probabilities decrease in the direction of larger electron densities. For ne ⩽ 2×1016cm-3 there is agreement with published theoretical transition probabilities and lifetime measurements.
Original languageEnglish
Pages (from-to)136-144
JournalPhysica <Amsterdam> / B C
Issue number1
Publication statusPublished - 1978
Externally publishedYes


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