A meanlife measurement of the 3d2D resonance doublet in SiII by a technique which exactly accounts for cascading

Accurate transition probabilities for the 2s2 1S - 2s2p 1P transition in Be I and B II

“…The decay curves were first analyzed using the multiexponential fitting program DISCRETE [25], and then by the ANDC [3] method, which corrects for cascading in a rigorous way. In this procedure the ANDC computer program CANDY [26] and a similar code developed specifically for this set of transitions were both used.…”

“…In subsequent beam-foil studies of these ions the method of Arbitrarily Normalized Decay Curves (ANDC) [3], which is able to correct for cascading in a rigorous way, was therefore applied. The new values thereby obtained for B II [4], C III [5], N IV, and O V [6] were all in satisfactory agreement with theory.…”

Beam-foil lifetime measurements in Pb III and Pb IV

“…We have recently reported some measurements of the lifetimes of low-lying levels of ions belonging to the Ag I and Cd I isoelectronic sequences (1)(2)(3), including measurements for the resonance levels (5p 2~1 , 2 and 2~3 , 2 for Ag I-like ions and 5s5p ' P I for Cd I-like ions) that used the arbitrarily normalized decay curve (ANDC) technique (4) to correct for the effects of cascade repopulation. Good agreement has been found for the members of the Cd I sequence with the recent calculation by Migdalek and Baylis (5).…”

Radiative liferimes in O II obtained from beam-foil experiments

“…One of the primary disadvantages of the beam-foil method is the cascade repopulation of the energy levels and this aspect is receiving much attention in present beam-foil research. In this investigation the most prominent cascades from higher excited levels were dealt with through the application of the ANDC technique [2].…”