Collision-energy-resolved angular distribution of Penning electrons for N2-He*(23S)

Yoshinori Hanzawa, Naoki Kishimoto, Masakazu Yamazaki, Koichi Ohno

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2 Citations (Scopus)


The collision-energy-resolved angular distributions of Penning electrons for individual ionic state of N2-He*(23S) were measured. The angular distributions showed increasing intensity in the backward (rebounding) directions with respect to initial He*(23S) beam vector because Penning ionization occurs with a collision against repulsive interaction wall followed by the electron emission from 2s orbital of He*. We also analyzed internal angular distribution by means of fitting parameters using classical trajectory calculations for N2-He*(23S) on the modified interaction potential. These internal angular distributions suggested the electron emission from 2s orbital of He* and they depended on collision energy and electron kinetic energy.

Original languageEnglish
Pages (from-to)43-48
Number of pages6
JournalChemical Physics Letters
Issue number1-3
Publication statusPublished - 2006 Jul 26


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