| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 6.896 (b) | 7.625 (b) | 1.106 | − | 3.779 (b) | 5.252 (b) |
| 2 | (n,elastic) | 5.592 (b) | 6.313 (b) | 1.129 | − | 2.034 (b) | 4.681 (b) |
| 4 | (n,inelastic) | ( E-thr = 393.0 keV ) | 751.1 (mb) | 565.8 (mb) | |||
| 16 | (n,2n) | ( E-thr = 8.526 MeV ) | 968.6 (mb) | 218.1 (μb) | |||
| 22 | (n,na) | ( E-thr = 5.238 MeV ) | 2.948 (μb) | 4.520 (nb) | |||
| 28 | (n,np) | ( E-thr = 8.964 MeV ) | 787.1 (μb) | 265.6 (nb) | |||
| 32 | (n,nd) | ( E-thr = 16.03 MeV ) | − | 90.29e-15 (b) | |||
| 102 | (n,γ) | 1.305 (b) | 1.312 (b) | 1.005 | 9.061 (b) | 502.7 (μb) | 5.208 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 1.428 (mb) | 19.85 (mb) | 120.1 (μb) |
| 104 | (n,d) | ( E-thr = 6.713 MeV ) | 456.9 (μb) | 127.7 (nb) | |||
| 105 | (n,t) | ( E-thr = 9.703 MeV ) | 2.947 (nb) | 700.9e-12 (b) | |||
| 106 | (n,He-3) | ( E-thr = 6.997 MeV ) | 19.43e-12 (b) | 141.1e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 24.62 (μb) | 2.016 (mb) | 1.581 (μb) |
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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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