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    Radiative Lifetimes for Singly Ionized Beryllium
    (Polish Acad Sciences Inst Physics, 2016) Celik, G.; Atalay, B.; Ates, S.
    The theoretical lifetimes for singly ionized beryllium (Be II) have been calculated using the weakest bound electron potential model theory and the quantum defect orbital theory under the assumption of the LS coupling scheme. In the calculations, many states are considered. Some lifetime values for highly excited levels have been obtained using these methods. The lifetimes presented in this work have been compared with the early theoretical calculations and measurements presented in the literature. A good agreement with the results in the literature has been obtained.
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    Öğe
    Transition probabilities of neutral scandium
    (Canadian Science Publishing, Nrc Research Press, 2014) Ozturk, I. K.; Celik, G.; Gokce, Y.; Atalay, B.; Guzelcimen, F.; Er, A.; Basar, G.
    The electric dipole transition probabilities and the oscillator strengths of neutral scandium have been calculated using the quantum defect orbital theory and the Cowan code for the 3d4s(2)-3d4s4p, 3d(2)4s-3d(2)4p, and 3d4s(2)-4s(2)4p transitions. In addition, a parametric analysis of the fine structure for the 3d4s(2) configuration of even parity is performed using Cowan code. The transition probabilities and the oscillator strengths obtained in this work are mostly in agreement with the data obtained from different theoretical works given in the literature. Moreover, transition probabilities for 24 levels of neutral scandium are given for the first time.