| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 111.5 (b) | 112.8 (b) | 1.012 | − | 5.500 (b) | 7.199 (b) |
| 2 | (n,elastic) | 6.381 (b) | 7.171 (b) | 1.124 | − | 2.760 (b) | 4.349 (b) |
| 4 | (n,inelastic) | ( E-thr = 8.460 keV ) | 759.9 (mb) | 2.709 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.082 MeV ) | 1.965 (b) | 3.572 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.96 MeV ) | − | 2.380 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 6.142 (μb) | 451.4 (μb) | 297.4 (nb) |
| 24 | (n,2na) | ( E-thr = 6.830 MeV ) | 634.9e-12 (b) | 50.24e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 5.605 MeV ) | 736.7 (μb) | 199.6 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.19 MeV ) | 1.878e-12 (b) | 121.1e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 11.37 MeV ) | 1.572e-15 (b) | 15.74e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 13.42 MeV ) | 21.81e-18 (b) | 20.48e-12 (b) | |||
| 102 | (n,γ) | 105.1 (b) | 105.6 (b) | 1.005 | 1.624 (kb) | 968.0 (μb) | 139.4 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 69.09 (μb) | 7.383 (mb) | 4.741 (μb) |
| 104 | (n,d) | ( E-thr = 3.368 MeV ) | 529.7 (μb) | 115.1 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.891 MeV ) | 10.44 (μb) | 4.059 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.888 MeV ) | 144.9e-15 (b) | 68.62e-15 (b) | |||
| 107 | (n,a) | 5.069 (μb) | 5.095 (μb) | 1.005 | 198.5 (μb) | 2.098 (mb) | 8.669 (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 :
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