| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 12.81 (b) | 13.14 (b) | 1.025 | − | 5.372 (b) | 6.830 (b) |
| 2 | (n,elastic) | 2.409 (b) | 2.718 (b) | 1.128 | − | 2.898 (b) | 4.034 (b) |
| 4 | (n,inelastic) | ( E-thr = 46.74 keV ) | 457.7 (mb) | 2.722 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.225 MeV ) | 2.009 (b) | 17.60 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.33 MeV ) | − | 4.815 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 306.3 (nb) | 60.62 (μb) | 29.54 (nb) |
| 24 | (n,2na) | ( E-thr = 4.443 MeV ) | 312.5 (nb) | 147.0e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.263 MeV ) | 34.13 (μb) | 28.80 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.12 MeV ) | 490.5e-15 (b) | 101.1e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.45 MeV ) | 13.50e-27 (b) | 840.8e-15 (b) | |||
| 41 | (n,2np) | ( E-thr = 13.36 MeV ) | 2.467e-24 (b) | 2.023e-12 (b) | |||
| 102 | (n,γ) | 10.41 (b) | 10.42 (b) | 1.001 | 339.0 (b) | 810.2 (μb) | 56.42 (mb) |
| 103 | (n,p) | ( E-thr = 290.2 keV ) | 4.744 (mb) | 1.865 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.026 MeV ) | 374.8 (μb) | 82.83 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.830 MeV ) | 10.31 (μb) | 3.872 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.847 MeV ) | 12.28e-15 (b) | 19.91e-15 (b) | |||
| 107 | (n,a) | 36.65 (μb) | 36.67 (μb) | 1.001 | 1.154 (mb) | 1.211 (mb) | 3.107 (μb) |
|
These cross sections are calculated from JENDL-4.0 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 :
|