| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 5.866 (b) | 6.280 (b) | 1.071 | − | 4.916 (b) | 5.751 (b) |
| 2 | (n,elastic) | 3.154 (b) | 3.558 (b) | 1.128 | − | 2.860 (b) | 3.976 (b) |
| 4 | (n,inelastic) | ( E-thr = 30.18 keV ) | 222.2 (mb) | 1.742 (b) | |||
| 16 | (n,2n) | ( E-thr = 5.198 MeV ) | 1.827 (b) | 28.93 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.04 MeV ) | − | 3.174 (μb) | |||
| 22 | (n,na) | ( E-thr = 410.2 keV ) | 163.0 (μb) | 41.89 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.745 MeV ) | 610.4 (μb) | 171.5 (nb) | |||
| 32 | (n,nd) | ( E-thr = 9.261 MeV ) | 549.2 (nb) | 2.805 (nb) | |||
| 102 | (n,γ) | 2.701 (b) | 2.703 (b) | 1.001 | 20.44 (b) | 894.9 (μb) | 3.836 (mb) |
| 103 | (n,p) | ( E-thr = 269.2 keV ) | 5.933 (mb) | 3.876 (μb) | |||
| 104 | (n,d) | ( E-thr = 4.504 MeV ) | 563.5 (μb) | 141.5 (nb) | |||
| 105 | (n,t) | ( E-thr = 2.959 MeV ) | 146.6 (μb) | 36.52 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 8.353 MeV ) | 0.000 (b) | 134.1e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 414.8 (μb) | 2.853 (mb) | 49.43 (μb) |
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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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