Research Article
Physics Features of TRU-Fueled VHTRs
Table 4
Reactor physics parameters for three and four ring TRU-VHTR configurations.
| | Number of rings | Packing fraction (%) | C/HM | Effective multiplication factor | Average neutron lethargy causing fission (eV) |
| | 3 | 2.0 | 733 | 1.0759 | 0.25 | | 3 | 3.0 | 520 | 1.0840 | 0.27 | | 3 | 4.0 | 414 | 1.0808 | 0.29 | | 3 | 6.0 | 308 | 1.0645 | 0.39 | | 3 | 8.0 | 255 | 1.0521 | 0.53 |
| | 4 | 2.0 | 632.44 | 1.1134 | 0.25 | | 4 | 3.0 | 504.66 | 1.1155 | 0.27 | | 4 | 4.0 | 419.47 | 1.1105 | 0.30 | | 4 | 6.0 | 249.10 | 1.0945 | 0.41 | | 4 | 8.0 | 176.08 | 1.0818 | 0.55 |
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