Modeling the momentum distributions of annihilating electron-positron pairs in solids

@article{Makkonen2006ModelingTM,
  title={Modeling the momentum distributions of annihilating electron-positron pairs in solids},
  author={Ilja Makkonen and Mikko Hakala and Martti J. Puska},
  journal={Physical Review B},
  year={2006},
  volume={73},
  pages={035103}
}
Measuring the Doppler broadening of the positron annihilation radiation or the angular correlation between the two annihilation gamma quanta reflects the momentum distribution of electrons seen by positrons in the material. Vacancy-type defects in solids localize positrons and the measured spectra are sensitive to the detailed chemical and geometric environments of the defects. However, the measured information is indirect and when using it in defect identification comparisons with… 
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