Figure 4 | Scientific Reports

Figure 4

From: A hybrid multi-particle approach to range assessment-based treatment verification in particle therapy

Figure 4

The correlation between the true range shifts and \(\Delta \overline{RL}\). (a) Shows the true range shifts against the mean of the calculated range shifts, \(\Delta \overline{RL}\), from the true distributions of detected FNs. (b) Shows the true range shifts against \(\Delta \overline{RL}\) from the reconstructed distributions of detected FNs along with the residuals. For both (a) and (b), \(\Delta \overline{RL}\) are calculated for a proton intensity of \(10^{8}\) protons/spot. Use of the true distributions predicts a nearly perfect linear relationship between the true range shifts and \(\Delta \overline{RL}\). The same can be said to be true for the relation between the true range shifts and \(\Delta \overline{RL}\) values estimated from the reconstructed distributions in spite of increased fluctuations reflected in the lower panel showing the residuals.

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