| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 4.528 (b) | 4.646 (b) | 1.026 | − | 5.021 (b) | 6.432 (b) |
| 2 | (n,elastic) | 902.2 (mb) | 1.018 (b) | 1.128 | − | 2.805 (b) | 4.900 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 529.2 (mb) | 1.498 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.872 MeV ) | 1.672 (b) | 3.975 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.04 MeV ) | − | 1.898 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 22.90 (μb) | 689.6 (μb) | 920.4 (nb) |
| 24 | (n,2na) | ( E-thr = 7.348 MeV ) | 1.168 (nb) | 12.65e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 8.024 MeV ) | 179.2 (μb) | 93.10 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.19 MeV ) | 33.99e-21 (b) | 106.2e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.77 MeV ) | 972.9e-27 (b) | 5.376e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 15.43 MeV ) | − | 203.7e-15 (b) | |||
| 102 | (n,γ) | 3.626 (b) | 3.628 (b) | 1.001 | 6.303 (b) | 1.135 (mb) | 29.48 (mb) |
| 103 | (n,p) | ( E-thr = 2.231 MeV ) | 8.681 (mb) | 3.257 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.784 MeV ) | 1.086 (mb) | 226.1 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.887 MeV ) | 8.989 (μb) | 3.963 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.117 MeV ) | 357.5e-15 (b) | 124.3e-15 (b) | |||
| 107 | (n,a) | 15.63 (μb) | 15.64 (μb) | 1.001 | 177.3 (μb) | 3.597 (mb) | 15.07 (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 :
|