| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 59.08 (b) | 58.89 (b) | 0.997 | − | 5.313 (b) | 6.955 (b) |
| 2 | (n,elastic) | 1.060 (b) | 1.187 (b) | 1.120 | − | 3.558 (b) | 4.938 (b) |
| 4 | (n,inelastic) | ( E-thr = 122.1 keV ) | 363.9 (mb) | 1.889 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.401 MeV ) | 1.364 (b) | 6.878 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.86 MeV ) | − | 1.836 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 20.40 (μb) | 2.551 (mb) | 1.302 (μb) |
| 28 | (n,np) | ( E-thr = 7.166 MeV ) | 540.9 (μb) | 187.6 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.13 MeV ) | 3.072e-15 (b) | 5.366 (nb) | |||
| 33 | (n,nt) | ( E-thr = 12.89 MeV ) | 0.000 (b) | 58.44e-12 (b) | |||
| 102 | (n,γ) | 58.02 (b) | 57.70 (b) | 0.995 | 780.2 (b) | 1.000 (mb) | 119.1 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 222.2 (μb) | 12.08 (mb) | 10.78 (μb) |
| 104 | (n,d) | ( E-thr = 4.840 MeV ) | 5.335 (mb) | 1.100 (μb) | |||
| 105 | (n,t) | ( E-thr = 4.903 MeV ) | 663.0 (μb) | 156.6 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 4.723 MeV ) | 2.772 (nb) | 124.8e-12 (b) | |||
| 107 | (n,a) | 578.3 (μb) | 577.4 (μb) | 0.998 | 7.895 (mb) | 4.653 (mb) | 60.32 (μb) |
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These cross sections are calculated from JENDL-3.2 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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