| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 13.76 (b) | 14.50 (b) | 1.054 | − | 4.162 (b) | 6.177 (b) |
| 2 | (n,elastic) | 5.730 (b) | 6.469 (b) | 1.129 | − | 2.310 (b) | 4.164 (b) |
| 4 | (n,inelastic) | ( E-thr = 98.78 keV ) | 283.3 (mb) | 1.981 (b) | |||
| 16 | (n,2n) | ( E-thr = 5.986 MeV ) | 1.558 (b) | 12.77 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.72 MeV ) | − | 2.690 (μb) | |||
| 22 | (n,na) | ( E-thr = 2.761 MeV ) | 339.3 (μb) | 79.59 (nb) | |||
| 28 | (n,np) | ( E-thr = 9.825 MeV ) | 59.47 (μb) | 60.77 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.63 MeV ) | 0.000 (b) | 224.7e-12 (b) | |||
| 102 | (n,γ) | 8.003 (b) | 8.007 (b) | 1.001 | 36.87 (b) | 857.5 (μb) | 17.57 (mb) |
| 103 | (n,p) | ( E-thr = 2.886 MeV ) | 7.653 (mb) | 4.338 (μb) | |||
| 104 | (n,d) | ( E-thr = 7.578 MeV ) | 1.540 (mb) | 294.5 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.313 MeV ) | 24.26 (μb) | 7.691 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 9.980 MeV ) | 0.000 (b) | 101.3e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 105.8 (μb) | 2.364 (mb) | 8.801 (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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