THE BEST SIDE OF LEAD FREE X RAY APRON

 (three) confirmed that the calculated values had been In line with the equation. In the meantime, the Bi powder/polymer composites exhibited decreased transmittances for the same filler content (sample thickness was 1 mm, and photon Strength of X-rays was 60 keV). The linear attenuation coefficient and mass attenuation coefficient, the two of t