Equilibrium convoy electron production and charge exchange |
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Authors: | J Kemmler O Heil P Koschar C Biedermann H Rothard K Kroneberger W Meckbach K O Groeneveld |
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Institution: | 1. Institut de Physique Nucléaire Expérimentale, Université de Liège, Sart Tilman B 15, B-4000, Liège, Belgium
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Abstract: | RatiosN 2s /N 3p of 2s to 3p populations in hydrogen atoms formed by the passage of protons through carbon foils have been measured using the beam-foil-laser excitation method reported very recently. No dependence ofN 2s /N 3p on the incident proton energyE p , in the 100–300 keV energy range analysed, is observed. From the ratioN 3p /N 2p of 3p to 2p beam-foil populations in hydrogen reported previously (N 3p /N 2p independent ofE p forE p >100 keV) and the ratiosN 2s /N 3p measured in the present work, a mean value ofN 2s /N 2p equal to 0.61±0.04 is deduced. These results are compared with available experimental data. |
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