Research Article

Physics Features of TRU-Fueled VHTRs

Table 3

Reactor physics parameters for three and four ring LEU-VHTR configurations.

Number of ringsEnrichmentEffective multiplication factorAverage neutron lethargy causing fission (eV)

330.863n/a
381.1810.2188
391.2140.2316
3101.2390.2463
3151.3280.3168
3201.4090.3994
3401.4810.8380

430.903n/a
481.2180.2229
491.2520.2106
4101.2780.2524
4151.3650.3295
4201.4140.4158
4401.5100.8926