Photon emission resulting from collisions of O5+ with CO
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms(2005)
摘要
As part of an investigation of the interactions between solar-wind ions and cometary gases, UV/X-ray and optical measurements of the photons resulting from collisions of O5+ with CO have been made. Although O5+ is not a major solar-wind ion, its interaction with CO yields information applicable to other solar-wind ion interactions. The data show general agreement with the “over-the-barrier” model prediction that electrons are likely to be captured into the n=4 levels of the resulting O4+ ion. Not only are the UV/X-ray lines measured in the 10–20nm range with the UV/X-ray spectrometer consistent with this prediction, but the general lack of optical lines in the optical spectrometer range of 350–850nm support the model for O5+–CO collisions. Only one optical line may be attributed to the decay of excited O4+ ions while most of the observed optical lines are attributable to atomic and molecular excitation of the CO target.
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关键词
34.70+e,96.50.Ek
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