| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 15.21 (kb) | 14.12 (kb) | 0.928 | − | 5.233 (b) | 6.868 (b) |
| 2 | (n,elastic) | 50.39 (b) | 48.10 (b) | 0.955 | − | 2.905 (b) | 3.904 (b) |
| 4 | (n,inelastic) | ( E-thr = 4.853 keV ) | 270.5 (mb) | 2.796 (b) | |||
| 16 | (n,2n) | ( E-thr = 5.634 MeV ) | 2.044 (b) | 21.67 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.67 MeV ) | 1.268 (mb) | 10.83 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 373.3 (nb) | 139.5 (μb) | 48.90 (nb) |
| 24 | (n,2na) | ( E-thr = 4.175 MeV ) | 168.7 (nb) | 183.3e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 8.323 MeV ) | 22.02 (μb) | 27.05 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.72 MeV ) | 53.81e-15 (b) | 141.4e-12 (b) | |||
| 33 | (n,nt) | ( E-thr = 12.74 MeV ) | 9.584e-27 (b) | 4.340e-12 (b) | |||
| 37 | (n,4n) | ( E-thr = 19.58 MeV ) | − | 82.60e-15 (b) | |||
| 41 | (n,2np) | ( E-thr = 13.96 MeV ) | 2.054e-18 (b) | 2.927e-12 (b) | |||
| 102 | (n,γ) | 15.16 (kb) | 14.07 (kb) | 0.928 | 3.440 (kb) | 880.5 (μb) | 145.7 (mb) |
| 103 | (n,p) | ( E-thr = 407.6 keV ) | 8.525 (mb) | 4.161 (μb) | |||
| 104 | (n,d) | ( E-thr = 6.084 MeV ) | 375.5 (μb) | 82.10 (nb) | |||
| 105 | (n,t) | ( E-thr = 5.426 MeV ) | 20.19 (μb) | 6.295 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.109 MeV ) | 6.192e-15 (b) | 38.80e-15 (b) | |||
| 107 | (n,a) | 10.48 (mb) | 10.49 (mb) | 1.001 | 3.686 (mb) | 1.293 (mb) | 2.609 (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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