A Monte Carlo investigation of saturation thickness and attenuation coefficient for backscattered and transmitted electrons of

Reliable data on electron backscattering in different media are not available in literature, even more for electrons of continuum spectrum. Material's parameters that depend or could be inferred from those data might have some uncertainties. Back in 1978, K. K. Sharma and M. Singh determined the value of saturation thickness for backscattered electrons and attenuation coefficient in some metals for radioisotopical sources of Sr/Y and Tl in a particular experimental set up. In this work, new values of those parameters were calculated by Monte Carlo transport of electrons in different materials. The saturation thickness was found to be dependent of the material atomic number and an explanation was proposed to interpret the obtained behaviour. Furthermore, results of attenuation coefficient and the saturation thickness differed from those reported by Sharma. It is also mentioned a consideration to Sharma's empirical relation for backscattered intensity of beta particles.