Protons (left panel) and electrons (right panel) accelerated throughout the life of an SNR from a Type Ia SN. The thin orange, pink, and green lines correspond to the particles trapped inside the SNR, escaping the SNR, and reaccelerated from the Galactic CRs, respectively. The dashed lines correspond to the FE and ST phases, while the solid lines additionally take into account the radiative (RAD) phase. The thick dashed blue line corresponds to the total contribution of the FE and ST phases. The thick solid lime line corresponds to the total contribution of the FE, ST, and RAD phases. The bottom panels show the slope of the spectrum sum of all components, for the ST and FE phase (dashed blue), and including the radiative phase (solid lime).