| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 87.86 (b) | 88.95 (b) | 1.012 | − | 5.363 (b) | 7.014 (b) |
| 2 | (n,elastic) | 7.783 (b) | 8.784 (b) | 1.129 | − | 2.599 (b) | 3.655 (b) |
| 4 | (n,inelastic) | ( E-thr = 46.14 keV ) | 528.0 (mb) | 3.309 (b) | |||
| 16 | (n,2n) | ( E-thr = 5.727 MeV ) | 2.203 (b) | 29.26 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.16 MeV ) | 30.21 (mb) | 21.52 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 0.000 (b) | 6.869 (μb) | 2.847 (nb) |
| 28 | (n,np) | ( E-thr = 8.060 MeV ) | 10.82 (μb) | 18.69 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.55 MeV ) | 0.000 (b) | 72.46e-12 (b) | |||
| 102 | (n,γ) | 80.03 (b) | 80.08 (b) | 1.001 | 132.1 (b) | 1.592 (mb) | 19.64 (mb) |
| 103 | (n,p) | ( E-thr = 1.900 MeV ) | 2.607 (mb) | 759.0 (nb) | |||
| 104 | (n,d) | ( E-thr = 5.823 MeV ) | 210.7 (μb) | 55.88 (nb) | |||
| 105 | (n,t) | ( E-thr = 5.255 MeV ) | 4.974 (μb) | 2.988 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.899 MeV ) | 0.000 (b) | 898.0e-18 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 1.045 (μb) | 237.4 (μb) | 106.0 (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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