Research Papers in Physics and Astronomy


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Published in Physical Review A Volume 47, Number 3, March 1993. Copyright © American Physical Society; used by permission.


Ionization cross sections differential in the angle and energy of the detected electrons were measured for electron impact on hydrogen gas at 200, 500, 1000, and 1500 eV. Measurements were made from 15°-150° and from a few eV to T -I where T is the primary electron energy and I the ionization potential of hydrogen. The results are compared to earlier measurements and to available calculations.

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