| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 68.76 (b) | 69.94 (b) | 1.017 | − | 4.642 (b) | 5.863 (b) |
| 2 | (n,elastic) | 10.53 (b) | 11.87 (b) | 1.127 | − | 2.672 (b) | 4.547 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 458.6 (mb) | 1.238 (b) | |||
| 16 | (n,2n) | ( E-thr = 7.613 MeV ) | 1.476 (b) | 2.239 (mb) | |||
| 17 | (n,3n) | ( E-thr = 18.00 MeV ) | − | 17.66 (nb) | |||
| 22 | (n,na) | ( E-thr = 3.232 MeV ) | 363.2 (μb) | 105.7 (nb) | |||
| 24 | (n,2na) | ( E-thr = 10.27 MeV ) | 579.7e-18 (b) | 14.39e-12 (b) | |||
| 28 | (n,np) | ( E-thr = 8.830 MeV ) | 654.0 (μb) | 242.9 (nb) | |||
| 32 | (n,nd) | ( E-thr = 13.92 MeV ) | 5.971e-21 (b) | 28.70e-12 (b) | |||
| 41 | (n,2np) | ( E-thr = 16.17 MeV ) | − | 1.117e-12 (b) | |||
| 102 | (n,γ) | 58.22 (b) | 58.07 (b) | 0.997 | 19.84 (b) | 1.276 (mb) | 75.31 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 1.346 (mb) | 32.10 (mb) | 93.60 (μb) |
| 104 | (n,d) | ( E-thr = 6.586 MeV ) | 925.1 (μb) | 185.7 (nb) | |||
| 105 | (n,t) | ( E-thr = 7.611 MeV ) | 1.788 (μb) | 2.083 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 7.915 MeV ) | 1.146e-12 (b) | 287.9e-15 (b) | |||
| 107 | (n,a) | 196.7 (μb) | 196.8 (μb) | 1.001 | 498.5 (μb) | 4.583 (mb) | 41.06 (μb) |
| 111 | (n,2p) | ( E-thr = 6.579 MeV ) | 10.71 (nb) | 11.65e-12 (b) | |||
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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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