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Table 8.

Average energy, in MeV, of gamma ⟨Eγ⟩, neutron ⟨En⟩, fission fragments ⟨EFF⟩ as well as available energy QSF, and neutron-multiplicity ⟨xn⟩ for the spontaneous fission of 238U and 232Th.

238U 232Th
GEF JEFF-4.0 GEF JEFF-4.0
Eγ 0.881 0.896 0.981 0.843
En 3.9 3.7 2.8 2.7
EFF 166.5 162.9 158.9 159.7
QSF 176.1 173.6 167.1 169.4
xn 1.99 2.00 1.38 1.50

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