| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 5.834 (b) | 6.451 (b) | 1.106 | − | 5.125 (b) | 6.401 (b) |
| 2 | (n,elastic) | 4.794 (b) | 5.412 (b) | 1.129 | − | 2.804 (b) | 4.288 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 486.1 (mb) | 2.088 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.430 MeV ) | 1.762 (b) | 6.684 (mb) | |||
| 17 | (n,3n) | ( E-thr = 12.50 MeV ) | 74.40 (mb) | 20.52 (μb) | |||
| 22 | (n,na) | ( E-thr = 442.0 keV ) | 48.93 (μb) | 22.90 (nb) | |||
| 24 | (n,2na) | ( E-thr = 7.137 MeV ) | 20.19e-12 (b) | 899.7e-15 (b) | |||
| 28 | (n,np) | ( E-thr = 9.989 MeV ) | 568.6 (nb) | 8.600 (nb) | |||
| 32 | (n,nd) | ( E-thr = 14.39 MeV ) | − | 1.373e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 13.27 MeV ) | 136.8e-27 (b) | 1.297e-12 (b) | |||
| 102 | (n,γ) | 1.041 (b) | 1.039 (b) | 0.999 | 14.16 (b) | 1.006 (mb) | 18.88 (mb) |
| 103 | (n,p) | ( E-thr = 4.635 MeV ) | 1.403 (mb) | 323.7 (nb) | |||
| 104 | (n,d) | ( E-thr = 7.749 MeV ) | 38.09 (μb) | 21.57 (nb) | |||
| 105 | (n,t) | ( E-thr = 8.091 MeV ) | 393.5 (nb) | 772.7e-12 (b) | |||
| 106 | (n,He-3) | ( E-thr = 10.23 MeV ) | 175.5e-27 (b) | 6.011e-18 (b) | |||
| 107 | (n,a) | 86.02e-18 (b) | 87.20e-18 (b) | 1.014 | 690.5 (nb) | 685.9 (μb) | 172.8 (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 :
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