Table 7: Specific activity of Re and natural Re.
| Case | Number of pins | Pin layout | Specific activity | Produced Re weight | Re/W |
| (Bq/g) | (kg) | (%) | |||
| Case 1 | ZrH1.7 18 pins W 43 pins | Figure 8 | 1150 | 51.2 | 1.45 |
| Case 2 | ZrD1.7 18 pins W 43 pins | Figure 9 | 658 | 40.3 | 1.14 |
| Case 3 | ZrH1.7 9 pins ZrD1.7 9 pins W 43 pins | Figure 10 | 1004 | 44.4 | 1.26 |
| Case 4 | ZrD1.7 9 pins ZrH1.7 9 pins W 43 pins | Figure 11 | 1033 | 45.6 | 1.30 |
| Case 5 | W 61 pins (no moderator) | Figure 12 | 938 | 49.1 | 0.98 |
| Natural Re | - | - | 1050 | - |