Stopping power for electrons in pyrimidine in the energy range 20–3000 eV

In this work, we present new experimental electron energy loss distribution functions for pyrimidine (C4H4N2) measured for the incident energy range 30–2000 eV. Theoretical total and elastic cross sections for electron scattering from pyrimidine were calculated using the screening-corrected additivity rule (IAM-SCAR) method. Based on the mean energy loss observed in the experiment and the theoretical integral inelastic cross section, the stopping power for electrons in pyrimidine is calculated in the energy range 20–3000 eV.

► EEL spectra in pyrimidine are presented for incident energies of 30–2000 eV. ► The average energy loss is derived as a function of the incident energy. ► The stopping power for electrons in pyrimidine is calculated in the range 20–3000 eV.