| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 10.20 (b) | 10.65 (b) | 1.044 | − | 3.530 (b) | 4.692 (b) |
| 2 | (n,elastic) | 3.462 (b) | 3.909 (b) | 1.129 | − | 1.828 (b) | 2.984 (b) |
| 4 | (n,inelastic) | ( E-thr = 210.2 keV ) | 663.6 (mb) | 1.670 (b) | |||
| 16 | (n,2n) | ( E-thr = 10.28 MeV ) | 940.8 (mb) | 284.3 (μb) | |||
| 17 | (n,3n) | ( E-thr = 18.27 MeV ) | − | 4.374 (nb) | |||
| 22 | (n,na) | ( E-thr = 5.531 MeV ) | 280.3 (μb) | 97.36 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.412 MeV ) | 47.78 (mb) | 61.15 (μb) | |||
| 32 | (n,nd) | ( E-thr = 14.79 MeV ) | − | 101.3e-12 (b) | |||
| 102 | (n,γ) | 6.740 (b) | 6.743 (b) | 1.000 | 88.41 (b) | 956.1 (μb) | 35.12 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 11.81 (mb) | 33.08 (mb) | 1.717 (mb) |
| 104 | (n,d) | ( E-thr = 4.159 MeV ) | 8.024 (mb) | 2.441 (μb) | |||
| 105 | (n,t) | ( E-thr = 8.454 MeV ) | 26.10 (μb) | 7.535 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 9.127 MeV ) | 0.000 (b) | 6.813e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 584.6 (μb) | 7.588 (mb) | 26.14 (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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