| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 48.76 (kb) | 41.32 (kb) | 0.847 | − | 5.351 (b) | 6.721 (b) |
| 2 | (n,elastic) | 137.7 (b) | 127.4 (b) | 0.925 | − | 2.815 (b) | 4.369 (b) |
| 4 | (n,inelastic) | ( E-thr = 54.88 keV ) | 651.6 (mb) | 2.242 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.401 MeV ) | 1.880 (b) | 6.978 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.48 MeV ) | 675.7 (μb) | 5.148 (μb) | |||
| 22 | (n,na) | 28.00e-33 (b) | 28.39e-33 (b) | 0.000 | 484.3 (nb) | 67.73 (μb) | 39.59 (nb) |
| 24 | (n,2na) | ( E-thr = 5.552 MeV ) | 16.74 (nb) | 43.48e-12 (b) | |||
| 25 | (n,3na) | ( E-thr = 12.36 MeV ) | 37.58e-36 (b) | 3.841e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.393 MeV ) | 26.63 (μb) | 20.51 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.92 MeV ) | 256.0e-18 (b) | 19.57e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 13.31 MeV ) | 502.6e-27 (b) | 80.33e-15 (b) | |||
| 41 | (n,2np) | ( E-thr = 14.16 MeV ) | − | 454.6e-15 (b) | |||
| 102 | (n,γ) | 48.63 (kb) | 41.19 (kb) | 0.847 | 404.1 (b) | 958.0 (μb) | 102.8 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 22.23 (μb) | 3.998 (mb) | 1.817 (μb) |
| 104 | (n,d) | ( E-thr = 5.154 MeV ) | 269.0 (μb) | 61.60 (nb) | |||
| 105 | (n,t) | ( E-thr = 5.618 MeV ) | 2.944 (μb) | 1.739 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 4.547 MeV ) | 51.79e-15 (b) | 18.82e-15 (b) | |||
| 107 | (n,a) | 92.27 (μb) | 80.61 (μb) | 0.874 | 108.0 (μb) | 1.721 (mb) | 1.173 (μb) |
| 108 | (n,2a) | 76.52e-21 (b) | 77.59e-21 (b) | 1.014 | 4.072e-12 (b) | 276.5e-12 (b) | 217.2e-15 (b) |
|
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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