Lifetime measurements of metastable states in Fe+.
Lifetime measurements of metastable states in Fe+.
复制标题
Fe 亚稳态的寿命测量。
DOI：
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发表时间：
2001
影响因子：
8.6
通讯作者：
Andreas Schmitt
中科院分区：
文献类型：
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作者：
D. Rostohar;A. Derkatch;Henrik Hartman;S. Johansson;H. Lundberg;S. Mannervik;L. Norlin;P. Royen;Andreas Schmitt
用激光探测储存离子束的方法测量了Fe ~+中两个亚稳能级的寿命。在Fe+的致密谱中，选择了亚稳能级a（6）S（5/2）和B（4）D（7/2），测定了它们的寿命分别为230 +/- 30和530 +/- 30 ms。寿命与以前的理论结果进行了比较。Fe ~+的亚稳态寿命测量对于解释天体光谱具有重要意义。本实验为研究复杂原子离子中亚稳态的寿命开辟了可能性，迄今为止，尚未探索过。
The lifetime of two metastable levels in Fe+ has been measured by laser probing of a stored ion beam. In the dense spectrum of Fe+, the metastable levels a (6)S(5/2) and b (4)D(7/2) were selected and their lifetimes were determined to be 230 +/- 30 and 530 +/- 30 ms, respectively. The lifetimes are compared with previous theoretical results. Metastable lifetime measurements of Fe+ are of great importance for interpretation of spectra from astronomical objects. The present experiment opens for the possibilities to investigate lifetimes of metastable states in complex atomic ions, which have, so far, been unexplored.