| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 12.71 (b) | 13.10 (b) | 1.031 | − | 4.384 (b) | 5.797 (b) |
| 2 | (n,elastic) | 3.464 (b) | 3.909 (b) | 1.129 | − | 2.434 (b) | 3.571 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 284.2 (mb) | 2.129 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.598 MeV ) | 1.651 (b) | 6.184 (mb) | |||
| 17 | (n,3n) | ( E-thr = 16.25 MeV ) | − | 475.1 (nb) | |||
| 22 | (n,na) | ( E-thr = 3.567 MeV ) | 96.04 (μb) | 27.87 (nb) | |||
| 24 | (n,2na) | ( E-thr = 9.858 MeV ) | 182.8e-15 (b) | 8.242e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 9.383 MeV ) | 106.7 (μb) | 80.47 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.79 MeV ) | 4.963e-18 (b) | 63.67e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 16.03 MeV ) | − | 852.3e-15 (b) | |||
| 102 | (n,γ) | 9.243 (b) | 9.192 (b) | 0.994 | 112.9 (b) | 880.0 (μb) | 90.27 (mb) |
| 103 | (n,p) | ( E-thr = 728.8 keV ) | 15.22 (mb) | 17.26 (μb) | |||
| 104 | (n,d) | ( E-thr = 7.137 MeV ) | 753.1 (μb) | 148.7 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.470 MeV ) | 5.186 (μb) | 3.424 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 9.388 MeV ) | 3.158e-15 (b) | 46.66e-15 (b) | |||
| 107 | (n,a) | 1.174 (μb) | 1.174 (μb) | 1.001 | 120.2 (μb) | 2.168 (mb) | 6.994 (μb) |
|
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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