| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 11.69 (b) | 12.84 (b) | 1.098 | − | 5.335 (b) | 6.698 (b) |
| 2 | (n,elastic) | 8.871 (b) | 10.02 (b) | 1.129 | − | 2.620 (b) | 4.028 (b) |
| 4 | (n,inelastic) | ( E-thr = 82.60 keV ) | 537.5 (mb) | 2.633 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.904 MeV ) | 2.106 (b) | 12.68 (mb) | |||
| 17 | (n,3n) | ( E-thr = 12.76 MeV ) | 70.75 (mb) | 27.84 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 0.000 (b) | 13.70 (μb) | 4.564 (nb) |
| 28 | (n,np) | ( E-thr = 8.516 MeV ) | 2.924 (μb) | 9.470 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.83 MeV ) | 0.000 (b) | 11.60e-12 (b) | |||
| 102 | (n,γ) | 2.823 (b) | 2.824 (b) | 1.000 | 6.976 (b) | 725.4 (μb) | 23.65 (mb) |
| 103 | (n,p) | ( E-thr = 3.357 MeV ) | 1.393 (mb) | 350.8 (nb) | |||
| 104 | (n,d) | ( E-thr = 6.279 MeV ) | 66.32 (μb) | 32.38 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.540 MeV ) | 7.895 (μb) | 5.794 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 8.453 MeV ) | 0.000 (b) | 789.8e-18 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 1.115 (μb) | 204.4 (μb) | 91.15 (nb) |
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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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