MASS SPECTROMETRIC STUDY OF ION-NEUTRAL REACTIONS IN RADIOFREQUENCY DISCHARGES IN CARBON DIOXIDE.
PURDUE UNIV LAFAYETTE IND PROJECT SQUID HEADQUARTERS
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Abundances of positive ions and neutral molecules emanating from an active radiofrequency discharge in CO2 at pressures from 0.01 to 1 torr have been determined mass-spectrometrically. The data are used to evaluate rate constants for ion-neutral reactions occurring in the discharge. The results are in agreement with previous results for reactions occurring in an electron-impact ion source and in thermalized flowing afterglows. The large yield of O2 at the higher discharge pressures is attributed mainly to charge transfer to O2, the significance of which is enhanced by an increase in effective reaction time with increased CO2 pressure. Author
- Atomic and Molecular Physics and Spectroscopy