| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 3.902 (b) | 4.403 (b) | 1.128 | − | 1.611 (b) | 2.751 (b) |
| 2 | (n,elastic) | 3.902 (b) | 4.403 (b) | 1.128 | − | 897.8 (mb) | 2.739 (b) |
| 4 | (n,inelastic) | ( E-thr = 6.430 MeV ) | 508.4 (mb) | 3.868 (mb) | |||
| 16 | (n,2n) | ( E-thr = 16.65 MeV ) | − | 21.52 (nb) | |||
| 22 | (n,na) | ( E-thr = 7.613 MeV ) | 36.61 (mb) | 3.472 (μb) | |||
| 28 | (n,np) | ( E-thr = 12.89 MeV ) | 0.000 (b) | 109.3 (nb) | |||
| 102 | (n,γ) | 190.0 (μb) | 190.1 (μb) | 1.000 | 563.3 (μb) | 100.0 (μb) | 94.94 (μb) |
| 103 | (n,p) | ( E-thr = 10.24 MeV ) | 43.70 (mb) | 20.26 (μb) | |||
| 104 | (n,d) | ( E-thr = 10.53 MeV ) | 15.40 (mb) | 3.888 (μb) | |||
| 107 | (n,a) | ( E-thr = 2.355 MeV ) | 109.0 (mb) | 7.629 (mb) | |||
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These cross sections are calculated from JENDL-3.2 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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