| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 108.9 (b) | 109.4 (b) | 1.004 | − | 5.217 (b) | 6.832 (b) |
| 2 | (n,elastic) | 8.029 (b) | 9.014 (b) | 1.123 | − | 2.875 (b) | 4.637 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 417.2 (mb) | 2.090 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.040 MeV ) | 1.913 (b) | 4.364 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.95 MeV ) | 190.2 (μb) | 4.493 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 673.2 (nb) | 302.7 (μb) | 101.5 (nb) |
| 24 | (n,2na) | ( E-thr = 6.158 MeV ) | 124.9 (nb) | 136.5e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 8.331 MeV ) | 29.68 (μb) | 33.31 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.41 MeV ) | 78.73e-27 (b) | 7.933e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 13.05 MeV ) | 24.88e-24 (b) | 1.792e-12 (b) | |||
| 102 | (n,γ) | 100.9 (b) | 100.3 (b) | 0.995 | 331.0 (b) | 906.8 (μb) | 101.3 (mb) |
| 103 | (n,p) | ( E-thr = 2.690 MeV ) | 4.824 (mb) | 1.417 (μb) | |||
| 104 | (n,d) | ( E-thr = 6.091 MeV ) | 317.7 (μb) | 71.86 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.111 MeV ) | 3.461 (μb) | 2.354 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.548 MeV ) | 6.592e-15 (b) | 32.23e-15 (b) | |||
| 107 | (n,a) | 3.103 (μb) | 3.104 (μb) | 1.001 | 43.20 (μb) | 2.751 (mb) | 3.234 (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 :
|