Investigation of the dosimetric impact of a Ni-Ti fiducial marker in carbon ion and proton beams

Figures & data

Figure 1. Drawing of a stent.

Figure 2. Depth dose curves for a carbon ion field delivered with raster scanning.

Figure 3. Depth dose curves for proton fields delivered with raster scanning and with high divergence.

Table I. Summary of the range reduction of the 95% dose level and the dose level of maximum dose falloff compared to reference field for the different settings.

	Range reduction of the 95% dose level			Dose level of maximum dose falloff
	Carbon ions raster scanning	Protons raster scanning	Protons passive	Carbon ions raster scanning	Protons raster scanning	Protons passive
0°	26 ± 0.5 mm	21 ± 0.5 mm	23 ± 0.5 mm	80 ± 2%	74 ± 2%	70 ± 2%
45°	8 ± 0.5 mm	7 ± 0.5 mm	7 ± 0.5 mm	34 ± 2%	32 ± 2%	32 ± 2%
90°	7 ± 0.5 mm	6 ± 0.5 mm	6 ± 0.5 mm	36 ± 2%	35 ± 2%	34 ± 2%