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Table 14

Delayed neutron fraction of the MSFR at steady state.

Steady-state composition LPSC ENDF/B6 POLITO JEFF-311 (see Sect. 3.2.5) POLIMI SERPENT POLIMI ERANOS JEFF-3.1 TU Delft ENDF/B7
Nominal flow rate Uniform sampling
β0 (pcm) 359.7 331 356 322
βeff (pcm) 342.63 319.9 340.8 334.2 307
βcirceff 0.529 0.537a 0.435
βcirc (pcm) 181.25 179.5a 133.64

Values calculated with a simplified correction method and not with ERANOS.

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