| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 5.731 (b) | 6.422 (b) | 1.121 | − | 4.270 (b) | 5.181 (b) |
| 2 | (n,elastic) | 5.336 (b) | 6.024 (b) | 1.129 | − | 2.256 (b) | 2.754 (b) |
| 4 | (n,inelastic) | ( E-thr = 20.81 keV ) | 354.1 (mb) | 2.385 (b) | |||
| 16 | (n,2n) | ( E-thr = 5.967 MeV ) | 1.655 (b) | 14.07 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.95 MeV ) | − | 2.044 (μb) | |||
| 22 | (n,na) | ( E-thr = 4.888 MeV ) | 2.174 (μb) | 2.071 (nb) | |||
| 28 | (n,np) | ( E-thr = 10.83 MeV ) | 934.1 (nb) | 15.92 (nb) | |||
| 32 | (n,nd) | ( E-thr = 14.61 MeV ) | − | 20.69e-12 (b) | |||
| 102 | (n,γ) | 390.2 (mb) | 390.4 (mb) | 1.001 | 117.4 (b) | 1.041 (mb) | 26.44 (mb) |
| 103 | (n,p) | ( E-thr = 2.885 MeV ) | 5.834 (mb) | 2.143 (μb) | |||
| 104 | (n,d) | ( E-thr = 8.588 MeV ) | 175.2 (μb) | 60.07 (nb) | |||
| 105 | (n,t) | ( E-thr = 8.288 MeV ) | 476.1 (nb) | 1.097 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 12.06 MeV ) | 0.000 (b) | 60.92e-18 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 1.594 (μb) | 243.5 (μb) | 140.9 (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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