| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 27.97 (b) | 28.77 (b) | 1.029 | − | 5.290 (b) | 6.973 (b) |
| 2 | (n,elastic) | 5.826 (b) | 6.568 (b) | 1.127 | − | 2.573 (b) | 4.285 (b) |
| 4 | (n,inelastic) | ( E-thr = 88.86 keV ) | 679.5 (mb) | 2.549 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.212 MeV ) | 2.022 (b) | 3.726 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.96 MeV ) | − | 2.388 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 8.933 (nb) | 87.13 (μb) | 28.26 (nb) |
| 28 | (n,np) | ( E-thr = 6.734 MeV ) | 191.9 (μb) | 86.08 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.21 MeV ) | 0.000 (b) | 24.50e-12 (b) | |||
| 102 | (n,γ) | 22.14 (b) | 22.20 (b) | 1.003 | 699.0 (b) | 1.821 (mb) | 134.8 (mb) |
| 103 | (n,p) | ( E-thr = 410.1 keV ) | 10.01 (mb) | 5.990 (μb) | |||
| 104 | (n,d) | ( E-thr = 4.497 MeV ) | 693.1 (μb) | 163.4 (nb) | |||
| 105 | (n,t) | ( E-thr = 5.914 MeV ) | 6.155 (μb) | 3.116 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 4.514 MeV ) | 48.53e-15 (b) | 363.0e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 24.64 (μb) | 877.5 (μb) | 2.112 (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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