| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 577.4 (b) | 567.1 (b) | 0.982 | − | 5.270 (b) | 7.008 (b) |
| 2 | (n,elastic) | 15.02 (b) | 16.59 (b) | 1.104 | − | 2.560 (b) | 4.250 (b) |
| 4 | (n,inelastic) | ( E-thr = 91.51 keV ) | 781.0 (mb) | 2.467 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.555 MeV ) | 1.903 (b) | 2.408 (mb) | |||
| 17 | (n,3n) | ( E-thr = 15.68 MeV ) | − | 785.6 (nb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 79.54 (nb) | 167.0 (μb) | 59.56 (nb) |
| 28 | (n,np) | ( E-thr = 6.286 MeV ) | 555.8 (μb) | 173.5 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.31 MeV ) | 0.000 (b) | 20.39e-12 (b) | |||
| 102 | (n,γ) | 562.3 (b) | 550.5 (b) | 0.979 | 383.8 (b) | 2.327 (mb) | 287.6 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 355.4 (μb) | 17.30 (mb) | 18.42 (μb) |
| 104 | (n,d) | ( E-thr = 4.049 MeV ) | 1.395 (mb) | 359.0 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.018 MeV ) | 6.905 (μb) | 3.179 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 3.466 MeV ) | 780.8e-15 (b) | 1.016e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 83.08 (μb) | 1.374 (mb) | 10.28 (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 :
|