| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 3.841 (kb) | 3.843 (kb) | 1.001 | − | 1.468 (b) | 2.638 (b) |
| 2 | (n,elastic) | 2.254 (b) | 2.542 (b) | 1.128 | − | 943.2 (mb) | 2.062 (b) |
| 4 | (n,inelastic) | ( E-thr = 790.7 keV ) | 268.5 (mb) | 70.84 (mb) | |||
| 16 | (n,2n) | ( E-thr = 8.980 MeV ) | 26.83 (mb) | 33.22 (μb) | |||
| 102 | (n,γ) | 500.0 (mb) | 500.2 (mb) | 1.000 | 225.0 (mb) | 21.26 (μb) | 76.06 (μb) |
| 103 | (n,p) | 3.000 (mb) | 3.000 (mb) | 1.000 | 65.70 (mb) | 37.51 (mb) | 15.25 (mb) |
| 104 | (n,d) | ( E-thr = 4.801 MeV ) | 47.63 (mb) | 1.249 (mb) | |||
| 107 | (n,a) | 3.837 (kb) | 3.837 (kb) | 1.000 | 1.719 (kb) | 48.95 (mb) | 435.5 (mb) |
| 113 | (n,t2a) | 12.00 (mb) | 12.00 (mb) | 1.000 | 243.3 (mb) | 94.66 (mb) | 52.28 (mb) |
|
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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