The Positron Transport Cross Section: Comment on Z. Rouabah N. Bouarissa, C. Champion, A. Bouzid(Sol. Stat. Comm. 150 (2010) 1702)

This work is a comment on the paper of[Z. Rouabah, N. Bouarissa, C. Champion, A. Bouzid, Solid State Communications 150 (2010) 1702] . Indeed, some weak points of the commented paper are discussed such as: an absence relationship between their work and the quantitative low-energy positron annihilation spectroscopy at energies up to 1 keV, the interpolation precision criteria and the drastic deviation of their interpolated cross-sections. So, we have shown that their transport cross section is inaccurate and really is not based on that derived by Jablonski[A. Jablonski, Phys. Rev. B 58 (1998) 16470].