Messung der Energiebreiten von Röntgen-Niveaus mit Hilfe der Auger-Elektronenspektroskopie

Abstract

From the Auger transitions KL2,3L2,3(1D2) of neon and L3M2,2M2,3 (1D2) of argon the level widths Γ(K) of neon and Γ (L3) and Γ (L2) of argon have been determined by folding Lorentzian distributions with the spectrometer function. The values found are: Γ(K) = (0.15 ± 0.03) eV, Γ (L3) = Γ (L2) = (0.16 ± 0.02) eV. From the level width Γ(Κ) of neon and the relative intensities of the KLL Auger lines of neon, determined very recently, absolute transition probabilities of the KLL Auger transitions of neon have been calculated to be (in units of 10-3 e2/ħ a0=4.1 · 1013 sec-1) : KL1L1(1S0) = 0.35 ± 0.07;KL1L2,3 (1P1) = 0.96 ± 0.19;KL1L2,3 (2P) = 0.35 ± 0.07; KL2,3L2,3,3 (1S0) = 0.55 ± 0.11;KL2,3L2,3 (1D2) = 3.28 ± 0.66;KL2,3L2,3 (3P0,2) = 0 . Whereas the experimental total transition probability KLL is in good agreement with theoretical values of the transition probability for Ζ=10, determined by extrapolation of Callan’s values for Ζ ≧ 12 and of Archard’s values for Z=11, 12, 15, 16, 17, 18, the experimental transition probabilities of the fine structure components do not agree with Callan’s values and agree only in some cases with Archard’s values.