@article{oai:repo.qst.go.jp:00047274,
 author = {Nakano, Y and A, Sokolik A and V, Stysin A and Nakai, Y and Komaki, K and Takada, E and Murakami, T and Azuma, T and 中野 祐司 and 中井 陽一 and 高田 栄一 and 村上 健 and 東 俊行},
 issue = {14},
 journal = {Journal of Physics B: Atomic, Molecular and Optical Physics},
 month = {May},
 note = {We report on the selective production of the 2s metastable state of 390-MeV u−1 H-like Ar17+ ions by the resonant coherent excitation (RCE). The RCE to the 2s state was achieved by using Stark mixing of n = 2 states under planar channeling conditions in a 1-$\mu $m thick Si crystal. The population of the 2s state was quantitatively estimated from the ionization probability in a stripper foil installed 50 mm downstream of the crystal. The 2s population was found to be 0.05 of the total number of Ar17+ ions at the stripper. The result is in good agreement with a theoretical calculation performed with the density matrix approach.},
 pages = {144026-1--144026-7},
 title = {Metastable Ar17+ (2 s) production by Stark-assisted resonant coherent excitation},
 volume = {48},
 year = {2015}
}