Increased Elemental Specificity of Positron Annihilation Spectra.

@article{AsokaKumar1996IncreasedES,
  title={Increased Elemental Specificity of Positron Annihilation Spectra.},
  author={Asoka-Kumar and Alatalo and Ghosh and Kruseman and Niels{\'e}n and Lynn},
  journal={Physical review letters},
  year={1996},
  volume={77 10},
  pages={
          2097-2100
        }
}
  • Asoka-Kumar, Alatalo, +3 authors Lynn
  • Published in Physical review letters 1996
  • Physics, Medicine
  • Positron annihilation spectroscopy (PAS) is a sensitive probe for studying the electronic structure of defects in solids. We show that the high-momentum part of the Doppler-broadened annihilation spectra can be used to distinguish different elements. This is achieved by using a new two-detector coincidence system to examine the line shape variations originating from high-momentum core electrons. Because the core electrons retain their atomic character even when atoms form a solid, these results… CONTINUE READING

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