|(n,total)||30.60 (b)||33.15 (b)||1.083||−||687.8 (mb)||3.928 (b)|
|(n,elastic)||30.27 (b)||32.81 (b)||1.084||−||687.8 (mb)||3.928 (b)|
|(n,2n)||( E-thr = 3.339 MeV )||20.38 (μb)||606.8 (nb)|
|(n,γ)||332.0 (mb)||332.2 (mb)||1.001||149.2 (mb)||29.82 (μb)||39.31 (μb)|
These cross sections are calculated from JENDL-4.0 at 300K.
The background color of each cell noted a cross section means the order of the cross-section value.
The unit of cross section, (b), means barns, and SI prefixes are used as following.
(kb) → 103(b), (mb) → 10−3(b), (μb) → 10−6(b), (nb) → 10−9(b).
Maxwellian Average :
where T denotes the temperature, and kB the Boltzmann constant. The upper and lower limits of integration, EL and EU are set to 10−5 eV and 10 eV, respectively.
Resonance Integral :
with EL = 0.5 eV and EU = 10 MeV.
U-235 Thermal Fission-Neutron Spectrum Average (Fiss. Spec. Average) :
with EL = 10−5 eV and EU = 20 MeV. The parameters a and b are 0.988 MeV and 2.249 MeV−1, respectively.
Westcott g-factor :