| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 114.2 (b) | 117.0 (b) | 1.024 | − | 5.334 (b) | 6.959 (b) |
| 2 | (n,elastic) | 9.985 (b) | 11.26 (b) | 1.128 | − | 2.639 (b) | 4.186 (b) |
| 4 | (n,inelastic) | ( E-thr = 88.86 keV ) | 531.3 (mb) | 2.681 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.133 MeV ) | 2.154 (b) | 9.599 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.56 MeV ) | 128.1 (μb) | 8.488 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 1.591 (nb) | 46.12 (μb) | 15.73 (nb) |
| 28 | (n,np) | ( E-thr = 6.286 MeV ) | 55.94 (μb) | 36.64 (nb) | |||
| 32 | (n,nd) | ( E-thr = 10.92 MeV ) | 0.000 (b) | 62.94e-12 (b) | |||
| 102 | (n,γ) | 104.2 (b) | 105.7 (b) | 1.014 | 1.981 (kb) | 1.611 (mb) | 82.50 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 49.28 (μb) | 5.697 (mb) | 3.171 (μb) |
| 104 | (n,d) | ( E-thr = 4.049 MeV ) | 758.8 (μb) | 151.5 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.624 MeV ) | 24.03 (μb) | 8.955 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 3.466 MeV ) | 3.881e-15 (b) | 133.5e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 16.44 (μb) | 907.0 (μb) | 1.167 (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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