Range-energy relation for low energy protons in Si and Ge

Abstract

The range-energy relations for protons of energy between 0.8 MeV and 2.0 MeV in Si and Ge were determined. For the measurement of the proton energy a 100 channel pulse-height analyzer and silicon semiconductor detector were used. The range energy relations for Si and Ge were assumed to be of the form R( ωm) = aE χ (MeV) and the parameters a and x were calculated using a least-squares fit. The following analytical expressions in the measured energy range were obtained: R Si( ωm) = 16.41 E 1.64(MeV) and R Ge( μm) = 7.52 E 2.05(MeV).