Recently, S. Aggarwal [Chin. Phys. B 23 （2014） 093203] reported energy levels, radiative rates, and the lifetimes for the lowest 60 levels belonging to the 2s22p5, 2s2p6, and 2s22p43g configurations of F-like tungst...Recently, S. Aggarwal [Chin. Phys. B 23 （2014） 093203] reported energy levels, radiative rates, and the lifetimes for the lowest 60 levels belonging to the 2s22p5, 2s2p6, and 2s22p43g configurations of F-like tungsten. There is no discrepancy for his calculated energies for the levels and the radiative rates for the limited number of E1 transitions, but the reported results for the lifetimes are highly inaccurate. According to our calculations, errors in his reported lifetimes are up to 6 orders of magnitude for several levels. Here we report the correct lifetimes for future comparisons and applications, and also explain the reason for the discrepancies.展开更多
Recently, S. Aggarwal et al. [Chin. Phys. B 24（2015） 053201] reported energy levels, radiative rates, and lifetimes for the lowest 148 levels belonging to the 3s^23 p, 3s3p^2, 3s^23d, 3s3p3d, 3p^3, 3p^23d, 3s3d^2, 3...Recently, S. Aggarwal et al. [Chin. Phys. B 24（2015） 053201] reported energy levels, radiative rates, and lifetimes for the lowest 148 levels belonging to the 3s^23 p, 3s3p^2, 3s^23d, 3s3p3d, 3p^3, 3p^23d, 3s3d^2, 3p3d^2, and 3d^3 configurations of Al-like tungsten. While their calculated energies for the levels and the radiative rates for transitions are correct, the reported results for lifetimes are completely wrong. According to our calculations, errors in their reported lifetimes are up to 14 orders of magnitude for over 90% of the levels. Here we report the correct lifetimes and explain the reasons for discrepancies.展开更多
文摘Recently, S. Aggarwal [Chin. Phys. B 23 （2014） 093203] reported energy levels, radiative rates, and the lifetimes for the lowest 60 levels belonging to the 2s22p5, 2s2p6, and 2s22p43g configurations of F-like tungsten. There is no discrepancy for his calculated energies for the levels and the radiative rates for the limited number of E1 transitions, but the reported results for the lifetimes are highly inaccurate. According to our calculations, errors in his reported lifetimes are up to 6 orders of magnitude for several levels. Here we report the correct lifetimes for future comparisons and applications, and also explain the reason for the discrepancies.
文摘Recently, S. Aggarwal et al. [Chin. Phys. B 24（2015） 053201] reported energy levels, radiative rates, and lifetimes for the lowest 148 levels belonging to the 3s^23 p, 3s3p^2, 3s^23d, 3s3p3d, 3p^3, 3p^23d, 3s3d^2, 3p3d^2, and 3d^3 configurations of Al-like tungsten. While their calculated energies for the levels and the radiative rates for transitions are correct, the reported results for lifetimes are completely wrong. According to our calculations, errors in their reported lifetimes are up to 14 orders of magnitude for over 90% of the levels. Here we report the correct lifetimes and explain the reasons for discrepancies.
