| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 47.51 (b) | 48.31 (b) | 1.017 | − | 5.341 (b) | 6.847 (b) |
| 2 | (n,elastic) | 7.005 (b) | 7.884 (b) | 1.126 | − | 2.727 (b) | 4.069 (b) |
| 4 | (n,inelastic) | ( E-thr = 123.5 keV ) | 429.4 (mb) | 2.664 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.133 MeV ) | 2.176 (b) | 15.96 (mb) | |||
| 17 | (n,3n) | ( E-thr = 13.80 MeV ) | 0.000 (b) | 8.478 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 0.000 (b) | 24.14 (μb) | 7.904 (nb) |
| 28 | (n,np) | ( E-thr = 7.460 MeV ) | 34.49 (μb) | 32.97 (nb) | |||
| 32 | (n,nd) | ( E-thr = 11.28 MeV ) | 0.000 (b) | 90.82e-12 (b) | |||
| 102 | (n,γ) | 40.50 (b) | 40.43 (b) | 0.998 | 507.2 (b) | 1.688 (mb) | 97.19 (mb) |
| 103 | (n,p) | ( E-thr = 628.9 keV ) | 5.231 (mb) | 2.321 (μb) | |||
| 104 | (n,d) | ( E-thr = 5.223 MeV ) | 519.7 (μb) | 118.4 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.989 MeV ) | 30.94 (μb) | 7.883 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 6.378 MeV ) | 0.000 (b) | 28.98e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 10.18 (μb) | 636.5 (μb) | 606.6 (nb) |
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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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