| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 3.794 (b) | 4.154 (b) | 1.095 | − | 4.961 (b) | 6.309 (b) |
| 2 | (n,elastic) | 2.792 (b) | 3.150 (b) | 1.128 | − | 2.756 (b) | 4.462 (b) |
| 4 | (n,inelastic) | ( E-thr = 400.2 keV ) | 305.3 (mb) | 1.831 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.945 MeV ) | 1.753 (b) | 10.96 (mb) | |||
| 17 | (n,3n) | ( E-thr = 12.13 MeV ) | 146.0 (mb) | 30.98 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 221.9 (nb) | 381.5 (μb) | 117.5 (nb) |
| 28 | (n,np) | ( E-thr = 9.606 MeV ) | 5.140 (μb) | 20.70 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.63 MeV ) | 0.000 (b) | 44.13e-12 (b) | |||
| 102 | (n,γ) | 1.000 (b) | 1.001 (b) | 1.001 | 7.632 (b) | 789.0 (μb) | 5.183 (mb) |
| 103 | (n,p) | ( E-thr = 4.796 MeV ) | 2.091 (mb) | 509.2 (nb) | |||
| 104 | (n,d) | ( E-thr = 7.366 MeV ) | 143.6 (μb) | 116.0 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.332 MeV ) | 79.79 (μb) | 42.88 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 9.540 MeV ) | 0.000 (b) | 224.0e-18 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 10.87 (μb) | 1.439 (mb) | 972.4 (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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