| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 6.163 (b) | 6.930 (b) | 1.124 | − | 3.853 (b) | 5.540 (b) |
| 2 | (n,elastic) | 5.733 (b) | 6.472 (b) | 1.129 | − | 2.148 (b) | 4.885 (b) |
| 4 | (n,inelastic) | ( E-thr = 1.044 MeV ) | 336.7 (mb) | 641.4 (mb) | |||
| 16 | (n,2n) | ( E-thr = 6.431 MeV ) | 1.356 (b) | 6.052 (mb) | |||
| 17 | (n,3n) | ( E-thr = 17.67 MeV ) | − | 50.49 (nb) | |||
| 22 | (n,na) | ( E-thr = 7.235 MeV ) | 445.2 (nb) | 4.227 (nb) | |||
| 28 | (n,np) | ( E-thr = 11.01 MeV ) | 8.276 (μb) | 34.42 (nb) | |||
| 32 | (n,nd) | ( E-thr = 14.91 MeV ) | − | 32.57e-12 (b) | |||
| 102 | (n,γ) | 420.2 (mb) | 420.4 (mb) | 1.001 | 730.6 (mb) | 739.8 (μb) | 7.324 (mb) |
| 103 | (n,p) | ( E-thr = 3.756 MeV ) | 8.729 (mb) | 5.392 (μb) | |||
| 104 | (n,d) | ( E-thr = 8.763 MeV ) | 130.6 (μb) | 43.12 (nb) | |||
| 105 | (n,t) | ( E-thr = 8.586 MeV ) | 12.26 (μb) | 3.661 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 12.50 MeV ) | 0.000 (b) | 172.4e-18 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 67.94 (μb) | 1.245 (mb) | 3.732 (μb) |
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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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