Lyman spectra and line ratios are reported for soft X-ray emissions following the charge exchange process in 293 km/s, 414 km/s, 586 km/s, and 1256 km/s O 8+ and Kr collisions. Lyman series from Ly-α to Ly-ε were resolved for the O 7+ ion using a high resolution X-ray quantum microcalorimeter detector. It is found that the observed line ratios are dependent on the nl distribution of the captured electron, and the Ly-α and Ly-β X-ray emissions are enhanced. Moreover, by comparing the measured line ratios to the constructed theoretical single charge exchange line ratios for O 8+
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