| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 18.06 (b) | 19.99 (b) | 1.107 | − | 5.156 (b) | 6.636 (b) |
| 2 | (n,elastic) | 14.94 (b) | 16.87 (b) | 1.129 | − | 2.657 (b) | 4.308 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 363.2 (mb) | 2.278 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.598 MeV ) | 2.132 (b) | 7.322 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.39 MeV ) | 3.951 (mb) | 13.29 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 1.496 (nb) | 3.263 (μb) | 1.768 (nb) |
| 24 | (n,2na) | ( E-thr = 6.506 MeV ) | 8.484e-12 (b) | 813.9e-15 (b) | |||
| 28 | (n,np) | ( E-thr = 8.867 MeV ) | 270.4 (nb) | 3.072 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.52 MeV ) | 1.394e-24 (b) | 458.3e-15 (b) | |||
| 102 | (n,γ) | 3.117 (b) | 3.119 (b) | 1.000 | 10.26 (b) | 900.4 (μb) | 41.82 (mb) |
| 103 | (n,p) | ( E-thr = 3.408 MeV ) | 694.4 (μb) | 166.2 (nb) | |||
| 104 | (n,d) | ( E-thr = 6.631 MeV ) | 21.58 (μb) | 11.18 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.230 MeV ) | 133.6 (nb) | 386.8e-12 (b) | |||
| 106 | (n,He-3) | ( E-thr = 8.488 MeV ) | 28.03e-24 (b) | 5.719e-18 (b) | |||
| 107 | (n,a) | 1.210e-15 (b) | 1.230e-15 (b) | 1.016 | 112.3 (nb) | 82.40 (μb) | 26.02 (nb) |
|
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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