| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 4.062 (kb) | 4.071 (kb) | 1.002 | − | 5.434 (b) | 6.890 (b) |
| 2 | (n,elastic) | 9.030 (b) | 10.20 (b) | 1.129 | − | 2.962 (b) | 4.348 (b) |
| 4 | (n,inelastic) | ( E-thr = 77.20 keV ) | 551.2 (mb) | 2.490 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.494 MeV ) | 1.918 (b) | 6.764 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.87 MeV ) | 2.036 (mb) | 9.600 (μb) | |||
| 22 | (n,na) | ( E-thr = 1.215 MeV ) | 4.343 (μb) | 1.834 (nb) | |||
| 28 | (n,np) | ( E-thr = 7.434 MeV ) | 73.75 (μb) | 42.57 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.49 MeV ) | 118.0e-21 (b) | 44.54e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.03 MeV ) | 691.9e-21 (b) | 9.862e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 14.72 MeV ) | − | 684.1e-15 (b) | |||
| 102 | (n,γ) | 4.052 (kb) | 4.054 (kb) | 1.001 | 1.925 (kb) | 734.5 (μb) | 47.42 (mb) |
| 103 | (n,p) | ( E-thr = 1.964 MeV ) | 2.539 (mb) | 677.0 (nb) | |||
| 104 | (n,d) | ( E-thr = 5.195 MeV ) | 207.2 (μb) | 49.95 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.188 MeV ) | 2.497 (μb) | 1.752 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 9.414 MeV ) | 1.094e-21 (b) | 335.2e-18 (b) | |||
| 107 | (n,a) | 3.981e-12 (b) | 4.038e-12 (b) | 1.014 | 572.6 (nb) | 197.9 (μb) | 66.68 (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 :
|