| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 109.2 (b) | 110.8 (b) | 1.014 | − | 5.415 (b) | 7.196 (b) |
| 2 | (n,elastic) | 9.030 (b) | 10.20 (b) | 1.129 | − | 2.844 (b) | 4.221 (b) |
| 4 | (n,inelastic) | ( E-thr = 22.66 keV ) | 627.9 (mb) | 2.920 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.381 MeV ) | 1.940 (b) | 17.89 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.58 MeV ) | − | 4.909 (μb) | |||
| 22 | (n,na) | ( E-thr = 1.264 MeV ) | 3.272 (μb) | 1.666 (nb) | |||
| 24 | (n,2na) | ( E-thr = 7.240 MeV ) | 11.65e-12 (b) | 1.223e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 7.231 MeV ) | 166.3 (μb) | 73.25 (nb) | |||
| 32 | (n,nd) | ( E-thr = 10.84 MeV ) | 102.9e-12 (b) | 394.5e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.56 MeV ) | 17.63e-24 (b) | 6.744e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 13.08 MeV ) | 18.30e-18 (b) | 21.88e-12 (b) | |||
| 102 | (n,γ) | 100.0 (b) | 100.1 (b) | 1.001 | 641.6 (b) | 800.8 (μb) | 37.71 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 22.78 (μb) | 5.559 (mb) | 2.225 (μb) |
| 104 | (n,d) | ( E-thr = 4.992 MeV ) | 372.2 (μb) | 79.43 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.539 MeV ) | 14.52 (μb) | 4.971 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 8.509 MeV ) | 181.1e-18 (b) | 11.46e-15 (b) | |||
| 107 | (n,a) | 1.224 (μb) | 1.224 (μb) | 1.001 | 3.322 (μb) | 408.0 (μb) | 219.8 (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 :
|