| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 33.32 (b) | 33.94 (b) | 1.018 | − | 4.914 (b) | 5.967 (b) |
| 2 | (n,elastic) | 4.311 (b) | 4.860 (b) | 1.127 | − | 2.913 (b) | 4.324 (b) |
| 4 | (n,inelastic) | ( E-thr = 81.61 keV ) | 403.9 (mb) | 1.587 (b) | |||
| 16 | (n,2n) | ( E-thr = 9.058 MeV ) | 1.582 (b) | 1.339 (mb) | |||
| 17 | (n,3n) | ( E-thr = 16.30 MeV ) | − | 915.6 (nb) | |||
| 22 | (n,na) | ( E-thr = 2.021 MeV ) | 73.31 (μb) | 26.15 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.143 MeV ) | 1.595 (mb) | 328.0 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.82 MeV ) | 0.000 (b) | 443.5e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 13.26 MeV ) | 0.000 (b) | 42.07e-12 (b) | |||
| 102 | (n,γ) | 29.01 (b) | 29.08 (b) | 1.002 | 396.2 (b) | 1.001 (mb) | 51.84 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 215.5 (μb) | 9.409 (mb) | 11.11 (μb) |
| 104 | (n,d) | ( E-thr = 3.815 MeV ) | 1.032 (mb) | 233.8 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.592 MeV ) | 25.51 (μb) | 20.68 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.551 MeV ) | 2.719e-15 (b) | 3.907e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 13.54 (μb) | 1.329 (mb) | 890.6 (nb) |
|
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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