| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 2.311 (kb) | 2.445 (kb) | 1.058 | − | 5.251 (b) | 6.902 (b) |
| 2 | (n,elastic) | 2.984 (b) | 4.341 (b) | 1.455 | − | 2.575 (b) | 4.126 (b) |
| 4 | (n,inelastic) | ( E-thr = 88.26 keV ) | 790.1 (mb) | 2.325 (b) | |||
| 16 | (n,2n) | ( E-thr = 9.106 MeV ) | 1.869 (b) | 1.530 (mb) | |||
| 17 | (n,3n) | ( E-thr = 16.23 MeV ) | − | 391.4 (nb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 1.707 (μb) | 484.5 (μb) | 217.9 (nb) |
| 28 | (n,np) | ( E-thr = 6.353 MeV ) | 581.5 (μb) | 162.4 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.89 MeV ) | 0.000 (b) | 9.656e-12 (b) | |||
| 102 | (n,γ) | 2.308 (kb) | 2.441 (kb) | 1.057 | 21.35 (kb) | 1.153 (mb) | 450.2 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 402.4 (μb) | 14.70 (mb) | 21.24 (μb) |
| 104 | (n,d) | ( E-thr = 4.115 MeV ) | 1.313 (mb) | 288.9 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.599 MeV ) | 9.390 (μb) | 7.059 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 3.524 MeV ) | 2.004e-12 (b) | 5.741e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 229.2 (μb) | 3.335 (mb) | 25.99 (μb) |
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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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