Table 5 Calculation Results of the Axial Distribution of the Neutron Flux in the Concrete Biological Shield.
No. | Lower Boundary (cm) | IMP-MC | CNP-AIS | ||||
|---|---|---|---|---|---|---|---|
Flux (cm−2 s−1) | R | FOM (min−1) | Flux (cm−2 s−1) | R | FOM (min−1) | ||
1 | 30 | 3.50E + 04 | 100.00% | 3.46E-04 | 2.02E + 04 | 6.50% | 8.70E-01 |
2 | 60 | 8.80E + 03 | 77.50% | 5.76E-04 | 4.83E + 04 | 5.81% | 1.09E + 00 |
3 | 90 | 1.62E + 04 | 70.72% | 6.92E-04 | 6.44E + 04 | 4.92% | 1.52E + 00 |
4 | 120 | 1.15E + 05 | 48.82% | 1.45E-03 | 7.40E + 04 | 3.94% | 2.37E + 00 |
5 | 150 | 1.18E + 04 | 71.76% | 6.72E-04 | 7.98E + 04 | 3.52% | 2.97E + 00 |
6 | 180 | 1.47E + 05 | 90.51% | 4.22E-04 | 8.34E + 04 | 3.64% | 2.78E + 00 |
7 | 210 | 1.44E + 05 | 57.24% | 1.06E-03 | 8.17E + 04 | 3.28% | 3.42E + 00 |
8 | 240 | 1.25E + 05 | 44.35% | 1.76E-03 | 7.93E + 04 | 3.48% | 3.04E + 00 |
9 | 270 | 2.03E + 04 | 53.14% | 1.23E-03 | 7.07E + 04 | 3.76% | 2.60E + 00 |
10 | 300 | 7.65E + 04 | 67.45% | 7.61E-04 | 6.22E + 04 | 4.02% | 2.28E + 00 |
11 | 330 | 0.00E + 00 | 0.00% | — | 5.09E + 04 | 4.28% | 2.01E + 00 |
12 | 360 | 7.85E + 03 | 71.17% | 6.83E-04 | 3.35E + 04 | 5.17% | 1.38E + 00 |
13 | 382.115 | 5.98E + 03 | 100.00% | 3.46E-04 | 1.27E + 04 | 6.23% | 9.47E-01 |
