First temperature stage evolution of irradiation-induced defects in tungsten studied by positron annihilation spectroscopy

@inproceedings{Debelle2008FirstTS,
  title={First temperature stage evolution of irradiation-induced defects in tungsten studied by positron annihilation spectroscopy},
  author={A. Debelle and M. Barthe and Th. Sauvage},
  year={2008}
}
Abstract The behaviour of vacancy like implantation-induced defects created in the track region of 800 keV 3 He ions in polycrystalline tungsten was studied by Doppler broadening spectroscopy as a function of annealing temperature. A slow positron beam, coupled with a Doppler broadening spectrometer, was used to measure the low- and high-momentum annihilation fractions, S and W , respectively, as a function of positron energy in tungsten samples implanted at different fluences from 10 14 to 5… CONTINUE READING