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Application of the Positron Annihilation Technique in Studies of Defects in Solids

  • Morten Eldrup
Part of the NATO ASI Series book series (NSSB)

Abstract

The basic principles of positron annihilation physics are discussed and the four most important experimental techniques are described (i.e. the positron lifetime, the angular correlation, the Doppler broadening, and the low-energy-positron beam techniques). Several examples are discussed, in particular for metals and molecular crystals, which illustrate the sensitivity of the positron annihilation techniques to vacancy type defects. For example it is shown how information can be obtained about vacancy formation energies, vacancy migration and clustering, vacancy-impurity interactions, densities of rare gasses in bubbles in metals, and defect density profiles in near-surface regions.

Keywords

Angular Correlation Positron Annihilation Vacancy Formation Positron Lifetime Vacancy Cluster 
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Copyright information

© Springer Science+Business Media New York 1986

Authors and Affiliations

  • Morten Eldrup
    • 1
  1. 1.Metallurgy DepartmentRisø National LaboratoryRoskildeDenmark

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