| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 29.46 (b) | 31.30 (b) | 1.063 | − | 5.147 (b) | 6.618 (b) |
| 2 | (n,elastic) | 16.35 (b) | 18.34 (b) | 1.122 | − | 2.633 (b) | 4.206 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 379.5 (mb) | 2.341 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.834 MeV ) | 2.132 (b) | 6.409 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.79 MeV ) | 45.82 (μb) | 10.57 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 120.2 (nb) | 37.37 (μb) | 17.45 (nb) |
| 24 | (n,2na) | ( E-thr = 5.844 MeV ) | 2.223 (nb) | 10.96e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 8.060 MeV ) | 3.110 (μb) | 8.268 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.89 MeV ) | 679.4e-33 (b) | 2.301e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.51 MeV ) | 914.6e-30 (b) | 347.3e-15 (b) | |||
| 102 | (n,γ) | 13.11 (b) | 12.96 (b) | 0.989 | 25.02 (b) | 926.9 (μb) | 65.09 (mb) |
| 103 | (n,p) | ( E-thr = 2.370 MeV ) | 1.737 (mb) | 453.3 (nb) | |||
| 104 | (n,d) | ( E-thr = 5.824 MeV ) | 84.19 (μb) | 25.80 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.604 MeV ) | 743.3 (nb) | 867.8e-12 (b) | |||
| 106 | (n,He-3) | ( E-thr = 6.936 MeV ) | 924.0e-21 (b) | 355.8e-18 (b) | |||
| 107 | (n,a) | 1.988 (nb) | 1.989 (nb) | 1.001 | 2.611 (μb) | 586.2 (μb) | 267.5 (nb) |
|
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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