Subexcitation electrons lose their kinetic energy through vibrational excitation, rotational excitation, and elastic collisions in molecular gases. Initial yields of vibrationally and rotationally excited states of nitrogen molecules are calculated by using the Spencer–Fano equation (SFE) and its simplification, the continuous‐slowing‐down approximation (CSDA), both in time‐independent and time‐dependent representations. One focus of the present study is a close comparison of the CSDA with the rigorous treatment of the SFE in the subexcitation domain. The present result reveals for the first time distinct energy regions in which either vibrational excitation or rotational excitation dominates. This recognition explains the different time dependence of the yields of vibrational and rotational excitation.
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15 December 1988
Research Article|
December 15 1988
Electron degradation and yields on initial products. II. Subexcitation electrons in molecular nitrogen
Ken‐ichi Kowari;
Ken‐ichi Kowari
Argonne National Laboratory, Argonne, Illinois 60439
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Mineo Kimura;
Mineo Kimura
Argonne National Laboratory, Argonne, Illinois 60439
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Mitio Inokuti
Mitio Inokuti
Argonne National Laboratory, Argonne, Illinois 60439
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J. Chem. Phys. 89, 7229–7237 (1988)
Article history
Received:
May 11 1988
Accepted:
September 06 1988
Citation
Ken‐ichi Kowari, Mineo Kimura, Mitio Inokuti; Electron degradation and yields on initial products. II. Subexcitation electrons in molecular nitrogen. J. Chem. Phys. 15 December 1988; 89 (12): 7229–7237. https://doi.org/10.1063/1.455302
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