| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 9.070 (b) | 10.02 (b) | 1.105 | − | 5.539 (b) | 6.943 (b) |
| 2 | (n,elastic) | 7.372 (b) | 8.323 (b) | 1.129 | − | 3.034 (b) | 4.514 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 462.9 (mb) | 2.376 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.452 MeV ) | 2.042 (b) | 7.490 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.68 MeV ) | 234.9 (μb) | 10.15 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 489.6 (nb) | 46.39 (μb) | 31.51 (nb) |
| 24 | (n,2na) | ( E-thr = 5.763 MeV ) | 5.352 (nb) | 16.93e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.742 MeV ) | 9.023 (μb) | 12.26 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.48 MeV ) | 65.00e-24 (b) | 8.356e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.28 MeV ) | 10.94e-24 (b) | 1.525e-12 (b) | |||
| 102 | (n,γ) | 1.698 (b) | 1.699 (b) | 1.001 | 16.60 (b) | 708.6 (μb) | 45.71 (mb) |
| 103 | (n,p) | ( E-thr = 2.095 MeV ) | 2.216 (mb) | 623.4 (nb) | |||
| 104 | (n,d) | ( E-thr = 5.506 MeV ) | 151.3 (μb) | 38.63 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.186 MeV ) | 2.713 (μb) | 1.750 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.544 MeV ) | 20.30e-18 (b) | 1.439e-15 (b) | |||
| 107 | (n,a) | 38.28 (nb) | 38.30 (nb) | 1.001 | 7.149 (μb) | 590.4 (μb) | 678.6 (nb) |
|
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 :
|