| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 864.2 (mb) | 968.6 (mb) | 1.121 | − | 1.053 (b) | 3.686 (b) |
| 2 | (n,elastic) | 856.9 (mb) | 961.3 (mb) | 1.122 | − | 1.053 (b) | 3.686 (b) |
| 102 | (n,γ) | 74.01e-12 (b) | 74.07e-12 (b) | 1.001 | 305.1e-12 (b) | 48.24e-12 (b) | 53.73e-12 (b) |
| 103 | (n,p) | 7.299 (mb) | 7.303 (mb) | 1.001 | 3.264 (mb) | 191.5 (nb) | 1.119 (μb) |
| 104 | (n,d) | ( E-thr = 4.362 MeV ) | 101.5 (nb) | 3.626 (nb) | |||
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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).
MT is a number that defines a reaction type. For the relation between MT and reaction type, please see here or refer to the manual of ENDF formats.
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 :
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