| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 110.1 (b) | 116.1 (b) | 1.054 | − | 5.322 (b) | 6.811 (b) |
| 2 | (n,elastic) | 46.92 (b) | 52.91 (b) | 1.128 | − | 2.603 (b) | 4.173 (b) |
| 4 | (n,inelastic) | ( E-thr = 76.91 keV ) | 568.1 (mb) | 2.597 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.508 MeV ) | 2.150 (b) | 7.614 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.91 MeV ) | 0.000 (b) | 8.862 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 0.000 (b) | 37.74 (μb) | 11.41 (nb) |
| 28 | (n,np) | ( E-thr = 8.026 MeV ) | 11.62 (μb) | 16.48 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.78 MeV ) | 0.000 (b) | 8.669e-12 (b) | |||
| 102 | (n,γ) | 63.21 (b) | 63.19 (b) | 1.000 | 25.48 (b) | 723.1 (μb) | 33.08 (mb) |
| 103 | (n,p) | ( E-thr = 2.311 MeV ) | 3.086 (mb) | 972.6 (nb) | |||
| 104 | (n,d) | ( E-thr = 5.788 MeV ) | 83.63 (μb) | 36.73 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.485 MeV ) | 10.53 (μb) | 6.723 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.363 MeV ) | 0.000 (b) | 21.29e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 4.892 (μb) | 408.0 (μb) | 330.0 (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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