## 3 Nuclear Analyses
### Spatial Distributions of the Nuclear Loads on the Divertor Targets, Both for WCLL and HCPB Blanket
The minimum values on the inner and outer target are 3.88 W/cm\({}^{3}\) and 2.94 W/cm\({}^{3}\), respectively. In the same order, they are achieved both on the 1 st row of Cu/CuCrZr elements and in the innermost columns (inner: 14 th, 15 th and 16 th, outer: 21 st, 22 nd and 23 rd). Considering the maps shown in Figure 14, related to the HCPB case, the following evaluations can be done: the absolute peak value amounts to 8.14 W/cm\({}^{3}\) and it is observed on the 60 th Cu\(\backslash\)CuCrZr element along the vertical direction of the inner target external sides, as before seen. Regarding the outer target, the maximum nuclear heating value is reached in correspondence of the 52 nd Cu\(\backslash\)CuCrZr segment on the vertical abscissa, again on the same external sides already stated, amounting to 7.66 W/cm\({}^{3}\). The minimum values on the inner and outer target are 3.22 W/cm\({}^{3}\) and 2.48 W/cm\({}^{3}\), respectively. In the same order, they are achieved both on the 1 st row of Cu/CuCrZr elements and in the innermost columns (inner: 14 th, 15 th and 16 th, outer: 21 st, 22 nd and 23 rd). Once again, the symmetrical trend of the heat load distribution with respect to the target central axis is evident, as well as the more intense values on the baffle regions of both the targets than the vertical straight leg and strike zones, as can be expected. This is confirmed for both the blankets. Figure 11: Nuclear heating (W/cm\({}^{3}\)) distribution on W-monoblocks of the inner (**left**) and outer (**right**) target, with WCLL blanket. Figure 12: Nuclear heating (W/cm\({}^{3}\)) distribution on W-monoblocks of the inner (**left**) and outer (**right**) target, with HCPB blanket. Figures 15 and 16 show the nuclear heating (W/cm\({}^{3}\)) distribution on the Eurofer PFC-CB supports of the inner and outer target, both for WCLL and HCPB, respectively. As far as the maps shown in Figure 15 are concerned, the following main evaluations can be stated: the absolute peak value amounts to 7.29 W/cm\({}^{3}\), which is observed in correspondence of the 13 th row of the PFC-CB supports, arranged on the more external sides of the inner target (columns: 1 st, 2 nd and 30 th and 31 st). The maximum value on the outer target PFC-CB supports is 6.69 W/cm\({}^{3}\) and it is reached in correspondence of the 10 th row and external columns (1 st and 43 rd arrays). The minimum values amount to 2.63 W/cm\({}^{3}\) and 1.96 W/cm\({}^{3}\), respectively, reached on the 2 nd row of the inner target (innermost columns: 14 th, 15 th and 16 th) and 1 st row of the outer target (innermost columns: 21 st, 22 nd and 23 rd). Looking at maps shown in Figure 16, which are related to the HCPB blanket case, the following assessments can be made: the absolute maximum value is 6.45 W/cm\({}^{3}\), which is reached on the 13 th row of the PFC-CB supports, placed on the more external edges (columns 1 st and 31 st) of the inner target. The peak value on the outer target is 6.12 W/cm\({}^{3}\), which is in correspondence with the 11 th row of the PFC-CB supports (external columns of the array: 1 st and 43 rd). The minimum values amount to 1.62 W/cm\({}^{3}\) and 2.09 W/cm\({}^{3}\), respectively, reached on the 1 st row and 2 nd row and innermost columns: 21 st, 22 nd and 23 rd (outer target), 14 th, 15 th and 16 th (inner target). Additionally in this case, the symmetrical trend of the nuclear heating distribution with respect to the target central axis is highlighted, as well as the more intense values on the baffle regions of both the targets than the vertical straight leg and strike zones, as reasonable. This is verified for both blankets. Figure 14: Nuclear heating (W/cm\({}^{3}\)) distribution on Cu/CuCrZr components of the inner (**left**) and outer (**right**) target, with HCPB blanket. Figure 13: Nuclear heating (W/cm\({}^{3}\)) distribution on Cu/CuCrZr components of the inner (**left**) and outer (**right**) target, with WCLL blanket.