Absolute Electron-Impact Ionization Cross Section Measurements Using a Magneto-Optical Trap

R. S. Schappe, T. Walker, L. W. Anderson, and Chun C. Lin
Phys. Rev. Lett. 76, 4328 – Published 3 June 1996
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Abstract

We present a new method for measuring absolute total electron-impact ionization cross sections. The technique measures fractional loss rates from a magneto-optical trap due to electron-impact ionization. The method requires only relative measurements of the number of target atoms and therefore eliminates a major source of difficulty in previous experiments. We report total ionization cross sections of Rb for electron energies from 50 to 500 eV.

  • Received 12 February 1996

DOI:https://doi.org/10.1103/PhysRevLett.76.4328

©1996 American Physical Society

Authors & Affiliations

R. S. Schappe, T. Walker, L. W. Anderson, and Chun C. Lin

  • Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706

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Issue

Vol. 76, Iss. 23 — 3 June 1996

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