Diffusion of positrons to surfaces |
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Authors: | A. P. Mills Jr. C. A. Murray |
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Affiliation: | (1) Bell Laboratories, 07974 Murray Hill, NJ, USA |
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Abstract: | Low-energy positrons implanted into a crystal can diffuse to the surface where they may be detected, for instance, by observing the formation of positronium. We describe the positron motion by a one-dimensional diffusion equation, and discuss the measurement of vacancy activation energies, positron diffusion constants, and positron stopping profiles. |
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Keywords: | 78.70 71.60 |
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