| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 106.6 (b) | 108.1 (b) | 1.015 | − | 5.360 (b) | 6.685 (b) |
| 2 | (n,elastic) | 7.922 (b) | 8.924 (b) | 1.127 | − | 2.722 (b) | 4.315 (b) |
| 4 | (n,inelastic) | ( E-thr = 77.75 keV ) | 461.6 (mb) | 2.291 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.114 MeV ) | 2.172 (b) | 3.906 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.79 MeV ) | − | 2.544 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 84.00 (nb) | 31.42 (μb) | 10.81 (nb) |
| 24 | (n,2na) | ( E-thr = 6.839 MeV ) | 627.5e-15 (b) | 1.735e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 5.812 MeV ) | 58.36 (μb) | 22.12 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.54 MeV ) | 401.1e-18 (b) | 24.40e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 11.39 MeV ) | 2.225e-18 (b) | 1.512e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 13.77 MeV ) | 569.1e-27 (b) | 587.3e-15 (b) | |||
| 102 | (n,γ) | 98.65 (b) | 99.20 (b) | 1.006 | 1.571 (kb) | 1.179 (mb) | 77.07 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 11.02 (μb) | 1.738 (mb) | 912.6 (nb) |
| 104 | (n,d) | ( E-thr = 3.576 MeV ) | 338.5 (μb) | 74.87 (nb) | |||
| 105 | (n,t) | ( E-thr = 5.249 MeV ) | 1.492 (μb) | 1.205 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.343 MeV ) | 227.0e-18 (b) | 3.382e-15 (b) | |||
| 107 | (n,a) | 7.457 (nb) | 7.461 (nb) | 1.001 | 4.836 (μb) | 320.2 (μb) | 351.9 (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 :
|