| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 50.50 (b) | 51.55 (b) | 1.021 | − | 3.841 (b) | 4.946 (b) |
| 2 | (n,elastic) | 8.486 (b) | 9.573 (b) | 1.128 | − | 2.502 (b) | 3.388 (b) |
| 4 | (n,inelastic) | ( E-thr = 164.1 keV ) | 136.3 (mb) | 1.525 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.520 MeV ) | 1.156 (b) | 3.973 (mb) | |||
| 17 | (n,3n) | ( E-thr = 18.83 MeV ) | − | 5.166 (nb) | |||
| 22 | (n,na) | ( E-thr = 5.810 MeV ) | 901.2 (μb) | 249.9 (nb) | |||
| 28 | (n,np) | ( E-thr = 9.735 MeV ) | 1.476 (mb) | 369.3 (nb) | |||
| 32 | (n,nd) | ( E-thr = 14.82 MeV ) | − | 293.3e-12 (b) | |||
| 102 | (n,γ) | 42.01 (b) | 41.98 (b) | 0.999 | 32.04 (b) | 1.001 (mb) | 26.28 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 7.800 (mb) | 32.57 (mb) | 878.8 (μb) |
| 104 | (n,d) | ( E-thr = 7.395 MeV ) | 1.207 (mb) | 251.6 (nb) | |||
| 105 | (n,t) | ( E-thr = 8.557 MeV ) | 1.758 (μb) | 5.593 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 9.732 MeV ) | 1.976e-12 (b) | 19.37e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 4.771 (mb) | 9.336 (mb) | 700.5 (μb) |
| 111 | (n,2p) | ( E-thr = 8.007 MeV ) | 146.5 (nb) | 89.82e-12 (b) | |||
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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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