Figure 4
From: Towards machine learning aided real-time range imaging in proton therapy

1D projection of the Compton image along the proton beam axis obtained using only the 4.4 MeV transition in \(^{12}\)C (left) and including the four main transitions in \(^{14}\)N, \(^{12}\)C and \(^{15,16}\)O (right). The different solid lines correspond to the BP, SOE and AA reconstruction methods. The true depth distribution (MC) is shown as the black dashed line.