| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 56.46 (b) | 57.37 (b) | 1.016 | − | 3.841 (b) | 4.940 (b) |
| 2 | (n,elastic) | 6.341 (b) | 7.155 (b) | 1.128 | − | 2.514 (b) | 3.565 (b) |
| 4 | (n,inelastic) | ( E-thr = 96.92 keV ) | 94.99 (mb) | 1.335 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.054 MeV ) | 1.213 (b) | 6.730 (mb) | |||
| 17 | (n,3n) | ( E-thr = 17.69 MeV ) | − | 66.91 (nb) | |||
| 22 | (n,na) | ( E-thr = 6.569 MeV ) | 57.12 (μb) | 32.58 (nb) | |||
| 28 | (n,np) | ( E-thr = 10.61 MeV ) | 63.23 (μb) | 48.01 (nb) | |||
| 32 | (n,nd) | ( E-thr = 15.26 MeV ) | − | 75.93e-12 (b) | |||
| 102 | (n,γ) | 50.02 (b) | 50.02 (b) | 1.000 | 60.81 (b) | 1.001 (mb) | 29.98 (mb) |
| 103 | (n,p) | ( E-thr = 1.436 MeV ) | 8.637 (mb) | 26.08 (μb) | |||
| 104 | (n,d) | ( E-thr = 8.268 MeV ) | 317.9 (μb) | 78.70 (nb) | |||
| 105 | (n,t) | ( E-thr = 8.993 MeV ) | 1.535 (μb) | 5.889 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 11.71 MeV ) | 0.000 (b) | 275.0e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 1.019 (mb) | 8.553 (mb) | 77.05 (μb) |
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These cross sections are calculated from JENDL-3.3 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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