Research Papers in Physics and Astronomy

 

Date of this Version

5-1-1991

Comments

Published in Physical Review A Volume 43, Number 9, May 1, 1991. Copyright © American Physical Society; used by permission.

Abstract

Recoil ions from very small impact-parameter collisions of 20-70-keV protons with xenon atoms were selected by viewing only those ejected at 50° and 70° from the beam direction. These ions were charge-state analyzed and the cross sections determined for the production of charge states up to 6+. In such collisions, multiple ionization accounts for 60-80% of the ionizing collisions and 80-90 % of the total ionization.

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