Figure 7.

Absorbed Depth-Dose Curves. Absorbed depth-dose curves for the FRM II neutron beam in the REGINA phantom, at slice number 45 and row number 48 (beam center; ■), assuming a rectangular beam profile of 6 × 7 cm², and in the voxelised water phantom (○); All curves were calculated for 3 min irradiation with a primary neutron fluence rate of 3.2 · 10⁸n/cm²s (no primary photons); for comparison, material numbers in the REGINA phantom along the central beam are included on the right y-axis (19: skin, 21: muscle, 28: adipose tissue).