Oscillator Strength for n=2 Transitions in Highly Ionized Sulfur
YANG Zhi-Hu1, DU Shu-Bin2, CHANG Hong-Wei1, ZHANG Xiao-An1,3, SU Hong1, ZHANG Yan-Ping1, SONG Zhang-Yong1
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2China Institute of Atomic Energy, Beijing 102413
3Department of Physics, Xianyang Teachers College, Xianyang 712000
Oscillator Strength for n=2 Transitions in Highly Ionized Sulfur
YANG Zhi-Hu1;DU Shu-Bin2;CHANG Hong-Wei1;ZHANG Xiao-An1,3;SU Hong1;ZHANG Yan-Ping1;SONG Zhang-Yong1
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2China Institute of Atomic Energy, Beijing 102413
3Department of Physics, Xianyang Teachers College, Xianyang 712000
Abstract： Oscillator strength f-values for L-shell transitions in highly ionized sulfur are studied by the beam--foil technique at the HI-13 tandem accelerator in China Institute of Atomic Energy. The lifetimes of the upper levels 2s2p1P01, 2p21S0, 2p23P1, 2p23 P2, 2 p23P0 of Be-like sulfur are measured to be 129±4, 81±5, 165±7, 159±8, 176±11ps. By using the measured lifetimes, the f-values are calculated to be 0.074, 0.082, 0.060, 0.066, 0.229, 0.056, 0.083, 0.089, 0.028 for the transitions 2s22p23P1－2s2p33P01, 2s22p 2P03/2-2s2p22P1/2, 2s2p24P3/2-2p34S03/2, 2s22p 2P01/2-2s2p22D3/2, 2s21S0-2s2p 1P01, 2s2p1P01-2p21S0, 2s2p3P00-2p23P1, 2s2p 3P022p23P2 and 2s2p 3P01-2p23P0. Most of the experimental results are in agreement with theoretical studies, but differ slightly from the previous experimental data.
2005, Vol. 22 
