| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 2.403 (b) | 2.500 (b) | 1.040 | − | 5.235 (b) | 6.685 (b) |
| 2 | (n,elastic) | 761.6 (mb) | 859.4 (mb) | 1.128 | − | 2.933 (b) | 5.872 (b) |
| 4 | (n,inelastic) | ( E-thr = 1.672 MeV ) | 853.7 (mb) | 724.9 (mb) | |||
| 16 | (n,2n) | ( E-thr = 10.60 MeV ) | 1.386 (b) | 315.0 (μb) | |||
| 17 | (n,3n) | ( E-thr = 19.27 MeV ) | − | 3.686 (nb) | |||
| 22 | (n,na) | ( E-thr = 167.1 keV ) | 2.755 (mb) | 845.5 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.343 MeV ) | 23.71 (mb) | 3.996 (μb) | |||
| 32 | (n,nd) | ( E-thr = 14.06 MeV ) | − | 5.215e-12 (b) | |||
| 102 | (n,γ) | 1.641 (b) | 1.641 (b) | 1.000 | 1.901 (b) | 1.586 (mb) | 86.72 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 1.595 (mb) | 23.63 (mb) | 76.16 (μb) |
| 104 | (n,d) | ( E-thr = 4.016 MeV ) | 1.188 (mb) | 257.2 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.833 MeV ) | 2.830 (μb) | 5.462 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 2.891 MeV ) | 19.86 (nb) | 106.4e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 1.663 (mb) | 9.481 (mb) | 195.2 (μb) |
| 111 | (n,2p) | ( E-thr = 4.507 MeV ) | 206.3e-12 (b) | 40.26e-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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