| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 28.74 (b) | 29.94 (b) | 1.042 | − | 5.363 (b) | 6.821 (b) |
| 2 | (n,elastic) | 8.869 (b) | 9.998 (b) | 1.127 | − | 2.896 (b) | 4.464 (b) |
| 4 | (n,inelastic) | ( E-thr = 100.3 keV ) | 402.5 (mb) | 2.290 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.110 MeV ) | 2.058 (b) | 4.355 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.83 MeV ) | − | 3.439 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 3.167 (μb) | 101.0 (μb) | 121.4 (nb) |
| 24 | (n,2na) | ( E-thr = 5.887 MeV ) | 11.24 (nb) | 76.51e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.134 MeV ) | 55.95 (μb) | 33.84 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.52 MeV ) | 45.90e-24 (b) | 6.739e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.90 MeV ) | 558.1e-36 (b) | 265.2e-15 (b) | |||
| 102 | (n,γ) | 19.87 (b) | 19.94 (b) | 1.004 | 628.2 (b) | 712.1 (μb) | 63.38 (mb) |
| 103 | (n,p) | ( E-thr = 1.038 MeV ) | 4.104 (mb) | 1.620 (μb) | |||
| 104 | (n,d) | ( E-thr = 4.897 MeV ) | 302.2 (μb) | 66.82 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.224 MeV ) | 2.731 (μb) | 1.787 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.349 MeV ) | 8.862e-15 (b) | 15.61e-15 (b) | |||
| 107 | (n,a) | 1.958 (μb) | 1.959 (μb) | 1.001 | 43.87 (μb) | 678.4 (μb) | 2.348 (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 :
|