| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 11.69 (b) | 12.25 (b) | 1.047 | − | 4.538 (b) | 5.994 (b) |
| 2 | (n,elastic) | 4.562 (b) | 5.148 (b) | 1.128 | − | 2.516 (b) | 4.224 (b) |
| 4 | (n,inelastic) | ( E-thr = 247.6 keV ) | 323.5 (mb) | 1.707 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.039 MeV ) | 1.657 (b) | 4.724 (mb) | |||
| 17 | (n,3n) | ( E-thr = 17.05 MeV ) | − | 179.6 (nb) | |||
| 22 | (n,na) | ( E-thr = 3.345 MeV ) | 249.1 (μb) | 95.44 (nb) | |||
| 28 | (n,np) | ( E-thr = 9.169 MeV ) | 381.9 (μb) | 232.8 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.79 MeV ) | 317.4e-33 (b) | 134.7e-12 (b) | |||
| 102 | (n,γ) | 7.133 (b) | 7.098 (b) | 0.995 | 45.18 (b) | 857.9 (μb) | 58.07 (mb) |
| 103 | (n,p) | ( E-thr = 256.8 keV ) | 27.61 (mb) | 51.20 (μb) | |||
| 104 | (n,d) | ( E-thr = 6.924 MeV ) | 3.827 (mb) | 806.8 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.481 MeV ) | 20.75 (μb) | 24.09 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 8.588 MeV ) | 232.5e-15 (b) | 1.222e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 255.0 (μb) | 12.88 (mb) | 20.00 (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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