| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 3.818 (b) | 4.292 (b) | 1.124 | − | 4.995 (b) | 5.701 (b) |
| 2 | (n,elastic) | 3.543 (b) | 4.001 (b) | 1.129 | − | 3.234 (b) | 4.921 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 209.1 (mb) | 774.7 (mb) | |||
| 16 | (n,2n) | ( E-thr = 8.339 MeV ) | 1.549 (b) | 2.305 (mb) | |||
| 17 | (n,3n) | ( E-thr = 15.22 MeV ) | − | 1.050 (μb) | |||
| 22 | (n,na) | ( E-thr = 3.107 MeV ) | 3.026 (μb) | 1.759 (nb) | |||
| 24 | (n,2na) | ( E-thr = 11.43 MeV ) | 8.475e-30 (b) | 1.052e-15 (b) | |||
| 28 | (n,np) | ( E-thr = 7.464 MeV ) | 202.4 (μb) | 74.56 (nb) | |||
| 29 | (n,n2a) | ( E-thr = 6.818 MeV ) | 5.336e-36 (b) | 13.71e-27 (b) | |||
| 30 | (n,2n2a) | ( E-thr = 14.97 MeV ) | − | 0.000 (b) | |||
| 32 | (n,nd) | ( E-thr = 13.36 MeV ) | 598.8e-24 (b) | 15.73e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 13.47 MeV ) | 12.91e-21 (b) | 2.191e-12 (b) | |||
| 34 | (n,nHe-3) | ( E-thr = 17.53 MeV ) | − | 120.5e-36 (b) | |||
| 41 | (n,2np) | ( E-thr = 15.60 MeV ) | − | 5.090e-12 (b) | |||
| 44 | (n,n2p) | ( E-thr = 17.46 MeV ) | − | 934.7e-36 (b) | |||
| 45 | (n,npa) | ( E-thr = 11.16 MeV ) | 0.000 (b) | 31.61e-24 (b) | |||
| 102 | (n,γ) | 270.1 (mb) | 270.3 (mb) | 1.001 | 354.4 (mb) | 1.160 (mb) | 1.818 (mb) |
| 103 | (n,p) | ( E-thr = 3.409 MeV ) | 1.033 (mb) | 268.5 (nb) | |||
| 104 | (n,d) | ( E-thr = 5.223 MeV ) | 245.9 (μb) | 52.39 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.059 MeV ) | 1.234 (μb) | 1.623 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 9.687 MeV ) | 8.058e-18 (b) | 1.809e-15 (b) | |||
| 107 | (n,a) | 1.694e-18 (b) | 1.716e-18 (b) | 1.013 | 5.999 (μb) | 329.7 (μb) | 293.8 (nb) |
| 108 | (n,2a) | ( E-thr = 1.040 MeV ) | 88.60e-21 (b) | 153.4e-21 (b) | |||
| 111 | (n,2p) | ( E-thr = 13.65 MeV ) | 37.63e-30 (b) | 34.70e-21 (b) | |||
| 112 | (n,pa) | ( E-thr = 5.282 MeV ) | 32.87e-18 (b) | 250.3e-18 (b) | |||
| 115 | (n,pd) | ( E-thr = 15.22 MeV ) | − | 3.702e-24 (b) | |||
| 116 | (n,pt) | ( E-thr = 16.76 MeV ) | − | 11.85e-33 (b) | |||
| 117 | (n,da) | ( E-thr = 8.918 MeV ) | 1.667e-30 (b) | 271.8e-24 (b) | |||
|
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 :
|