Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9818262 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2005 | 6 Pages |
Abstract
We observed resonant coherent excitation of the 2s electron to the n = 3 states of 83.5 MeV/u Li-like Fe23+ ions planar-channeling in the (22¯0) plane of a Si crystal. A survival fraction of the Li-like ions was measured as a function of the angle between the incident beam and the [0 0 1] axis. Clear resonance dips corresponding to the transitions of a 2s electron to all the n = 3 states were observed. The transition of each resonance dip was identified by comparing with spectroscopic data. The resonance dips at the transition energies corresponding to the optically forbidden 2s1/2-3s1/2, 2s1/2-3d3/2 and 2s1/2-3d5/2 transitions were observed as well as the resonance dips at transition energies corresponding to the optically allowed 2s1/2-3p1/2 and 2s1/2-3p3/2 transitions.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
Yoichi Nakai, T. Ikeda, Y. Kanai, T. Kambara, N. Fukunishi, K. Komaki, C. Kondo, T. Azuma, Y. Yamazaki,