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>Near threshold excitation ofKVVAuger spectra in carbon monoxide using electronndash;electron coincidence spectroscopy
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Near threshold excitation ofKVVAuger spectra in carbon monoxide using electronndash;electron coincidence spectroscopy
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机译：Near threshold excitation ofKVVAuger spectra in carbon monoxide using electronndash;electron coincidence spectroscopy
Electronndash;electron coincidence spectroscopy has been used to separateKVVAuger spectra in CO into several component spectra, each arising from different corehyphen;excited initial states. Results are presented for the Auger decay of ions in which either a carbon 1sor oxygen 1selectron has been ionized and for the decay of neutral molecules in which either a carbon 1sor oxygen 1selectron has been excited to the vacant 2pgr; orbital. The spectra from the neutral molecules have been studied and analyzed in some detail. These autoionization spectra can be broken into two parts. The highest kinetic energy part where the 2pgr; electron participates in the decay is easily understood; in this case, the Auger transitions lead to wellhyphen;known onehyphen;hole states of CO+. The lowerhyphen;energy part arises from deexcitation with the 2pgr; electron remaining as a spectator. This part of the spectrum is similar to the lsquo;lsquo;normalrsquo;rsquo; Auger spectrum shifted approximately 10 eV by the Coulomb interaction with the spectator electron. The similarity is greatest for the Auger spectra of CO but is less apparent for the spectrum of N2.
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