| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 1.407 (kb) | 1.411 (kb) | 1.003 | − | 5.105 (b) | 6.340 (b) |
| 2 | (n,elastic) | 5.820 (b) | 6.572 (b) | 1.129 | − | 2.765 (b) | 3.966 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 291.4 (mb) | 2.327 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.320 MeV ) | 2.025 (b) | 7.553 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.26 MeV ) | 14.32 (mb) | 14.90 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 14.20 (μb) | 435.1 (μb) | 628.7 (nb) |
| 24 | (n,2na) | ( E-thr = 5.851 MeV ) | 429.7 (nb) | 170.9e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 5.987 MeV ) | 806.6 (μb) | 215.1 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.13 MeV ) | 120.9e-12 (b) | 595.9e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 10.16 MeV ) | 501.2e-12 (b) | 183.7e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 13.37 MeV ) | 141.4e-21 (b) | 191.5e-12 (b) | |||
| 102 | (n,γ) | 1.401 (kb) | 1.401 (kb) | 1.001 | 1.203 (kb) | 780.3 (μb) | 40.00 (mb) |
| 103 | (n,p) | ( E-thr = 914.2 keV ) | 5.628 (mb) | 2.551 (μb) | |||
| 104 | (n,d) | ( E-thr = 3.747 MeV ) | 1.238 (mb) | 273.2 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.830 MeV ) | 43.94 (μb) | 10.74 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.527 MeV ) | 4.539e-15 (b) | 34.68e-15 (b) | |||
| 107 | (n,a) | 128.8 (μb) | 128.9 (μb) | 1.001 | 142.8 (μb) | 1.322 (mb) | 4.206 (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 :
|