| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 617.7 (b) | 614.2 (b) | 0.994 | − | 5.198 (b) | 6.871 (b) |
| 2 | (n,elastic) | 17.60 (b) | 19.60 (b) | 1.114 | − | 2.684 (b) | 3.988 (b) |
| 4 | (n,inelastic) | ( E-thr = 25.81 keV ) | 374.1 (mb) | 2.734 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.495 MeV ) | 2.132 (b) | 12.81 (mb) | |||
| 17 | (n,3n) | ( E-thr = 15.12 MeV ) | − | 2.007 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 175.9 (nb) | 81.46 (μb) | 30.29 (nb) |
| 24 | (n,2na) | ( E-thr = 6.053 MeV ) | 7.791 (nb) | 36.33e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.554 MeV ) | 52.24 (μb) | 33.23 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.73 MeV ) | 5.478e-15 (b) | 57.66e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 13.62 MeV ) | 11.52e-27 (b) | 185.7e-15 (b) | |||
| 41 | (n,2np) | ( E-thr = 13.97 MeV ) | 349.7e-21 (b) | 1.196e-12 (b) | |||
| 102 | (n,γ) | 600.1 (b) | 594.6 (b) | 0.991 | 1.089 (kb) | 1.104 (mb) | 135.9 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 58.75 (μb) | 6.610 (mb) | 3.900 (μb) |
| 104 | (n,d) | ( E-thr = 5.316 MeV ) | 509.2 (μb) | 107.8 (nb) | |||
| 105 | (n,t) | ( E-thr = 5.434 MeV ) | 11.05 (μb) | 4.234 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.392 MeV ) | 49.36e-15 (b) | 53.32e-15 (b) | |||
| 107 | (n,a) | 672.5 (μb) | 672.8 (μb) | 1.001 | 1.375 (mb) | 1.759 (mb) | 4.041 (μb) |
|
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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