| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 92.39 (b) | 92.66 (b) | 1.003 | − | 5.699 (b) | 6.982 (b) |
| 2 | (n,elastic) | 7.380 (b) | 8.299 (b) | 1.125 | − | 3.420 (b) | 5.005 (b) |
| 4 | (n,inelastic) | ( E-thr = 123.9 keV ) | 287.8 (mb) | 1.711 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.718 MeV ) | 1.980 (b) | 2.200 (mb) | |||
| 17 | (n,3n) | ( E-thr = 15.25 MeV ) | − | 5.378 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 1.201 (μb) | 444.2 (μb) | 165.3 (nb) |
| 28 | (n,np) | ( E-thr = 7.685 MeV ) | 53.06 (μb) | 26.09 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.97 MeV ) | 0.000 (b) | 2.855e-12 (b) | |||
| 102 | (n,γ) | 85.01 (b) | 84.36 (b) | 0.992 | 214.9 (b) | 1.123 (mb) | 262.3 (mb) |
| 103 | (n,p) | ( E-thr = 1.203 MeV ) | 6.854 (mb) | 3.393 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.359 MeV ) | 149.4 (μb) | 53.60 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.745 MeV ) | 2.744 (μb) | 5.901 (nb) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 63.12 (μb) | 2.370 (mb) | 5.130 (μb) |
|
These cross sections are calculated from JENDL-3.3 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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