Autoionization of Nq (q=1-3) Rydberg states produced in high-energy collisions with He

作者：Kawatsura K^*; Takahiro K; Sataka M; Imai M; Sugai H; Ozaki K; Shibata H; Komaki K

来源：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms , 2009, 267(6): 901-904.

DOI：10.1016/j.nimb.2009.02.003

• Autoionization
• Coster-Kronig transition
• N ion
• Zero-degree electron spectroscopy

Energy spectra of electrons ejected through autoionization decay of high-Rydberg states in high-energy collisions of Nq (q = 1-3) with He have been measured with high-resolution by using zero-degree electron spectroscopy. Several series of autoionizing lines were observed, corresponding to decays front N3 1s(2)2p(P-2)nl Rydberg states produced in N3 He collisions, from N2 1 s(2)2s2p(P-3)nl Rydberg states produced in N2 He and from N 1s(2)2s2p(2)(P-4)nl Rydberg states produced in N He, respectively. Angular momentum distributions for the first or second peak of three series of Coster-Kronig electron transitions for Nq (q = 1-3) projectiles are also discussed, where the highly excited states are formed by electron excitation.

• 出版日期2009-3
• 单位中央民族大学