5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM
The application limits of the tool are as follows:
1. Proton energy:
50 - 500 MeV
2. 12C ion energy:
155 - 430 MeV/u (2 bins: 180 and 400 MeV/u, limited accuracy of results in intermediate range)
3. Emission angle relative to beam direction:
0 - 90 degrees (6 bins, limited accuracy of results for > 45 degrees based on comparison with published FLUKA calculations
4. Barrier thickness in concrete:
0 - 400 cm (assumed density 2.1 g/cm3, ordinary concrete)
5. Barrier thickness in iron:
0, 25, 50 and 70 cm (assumed density 7.83 g/c3).
The tool is not applicable for radiation streaming problems like a maze and a duct, or a skyshine problem. In case of larger emission angles for the secondary particles the accuracy of the results is limited.