| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 427.1 (b) | 429.3 (b) | 1.005 | − | 5.265 (b) | 6.881 (b) |
| 2 | (n,elastic) | 6.723 (b) | 7.590 (b) | 1.129 | − | 2.882 (b) | 3.909 (b) |
| 4 | (n,inelastic) | ( E-thr = 7.585 keV ) | 302.3 (mb) | 2.908 (b) | |||
| 16 | (n,2n) | ( E-thr = 5.907 MeV ) | 2.073 (b) | 23.87 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.22 MeV ) | − | 8.132 (μb) | |||
| 22 | (n,na) | ( E-thr = 613.9 keV ) | 10.31 (μb) | 4.248 (nb) | |||
| 24 | (n,2na) | ( E-thr = 5.686 MeV ) | 10.09 (nb) | 12.68e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 8.649 MeV ) | 9.863 (μb) | 19.88 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.39 MeV ) | 972.7e-21 (b) | 47.04e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 14.63 MeV ) | − | 389.5e-15 (b) | |||
| 102 | (n,γ) | 420.2 (b) | 420.4 (b) | 1.001 | 1.425 (kb) | 815.9 (μb) | 39.67 (mb) |
| 103 | (n,p) | ( E-thr = 1.106 MeV ) | 5.960 (mb) | 2.235 (μb) | |||
| 104 | (n,d) | ( E-thr = 6.410 MeV ) | 238.5 (μb) | 57.43 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.089 MeV ) | 5.389 (μb) | 2.786 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 8.529 MeV ) | 609.6e-21 (b) | 2.109e-15 (b) | |||
| 107 | (n,a) | 2.005 (μb) | 2.006 (μb) | 1.001 | 6.493 (μb) | 339.6 (μb) | 179.7 (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 :
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