| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 40.72 (kb) | 68.78 (kb) | 1.689 | − | 5.199 (b) | 6.763 (b) |
| 2 | (n,elastic) | 178.8 (b) | 424.4 (b) | 2.373 | − | 2.928 (b) | 4.243 (b) |
| 4 | (n,inelastic) | ( E-thr = 22.66 keV ) | 269.2 (mb) | 2.286 (b) | |||
| 16 | (n,2n) | ( E-thr = 5.911 MeV ) | 1.987 (b) | 12.49 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.11 MeV ) | − | 5.995 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 5.527 (μb) | 442.5 (μb) | 336.5 (nb) |
| 24 | (n,2na) | ( E-thr = 3.911 MeV ) | 739.1 (nb) | 418.1e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.610 MeV ) | 125.4 (μb) | 64.20 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.31 MeV ) | 5.569e-12 (b) | 262.2e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.72 MeV ) | 80.39e-27 (b) | 6.459e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 13.55 MeV ) | 55.75e-18 (b) | 23.83e-12 (b) | |||
| 102 | (n,γ) | 40.54 (kb) | 68.35 (kb) | 1.686 | 3.517 (kb) | 881.9 (μb) | 221.6 (mb) |
| 103 | (n,p) | ( E-thr = 290.3 keV ) | 9.181 (mb) | 5.013 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.371 MeV ) | 880.5 (μb) | 175.8 (nb) | |||
| 105 | (n,t) | ( E-thr = 5.006 MeV ) | 41.76 (μb) | 10.70 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.890 MeV ) | 2.908e-12 (b) | 334.4e-15 (b) | |||
| 107 | (n,a) | 31.17 (mb) | 52.42 (mb) | 1.682 | 2.873 (mb) | 2.485 (mb) | 13.04 (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 :
|