| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 372.2 (b) | 379.9 (b) | 1.021 | − | 5.319 (b) | 6.907 (b) |
| 2 | (n,elastic) | 216.6 (mb) | 270.6 (mb) | 1.249 | − | 2.693 (b) | 4.040 (b) |
| 4 | (n,inelastic) | ( E-thr = 113.6 keV ) | 467.7 (mb) | 2.680 (b) | |||
| 16 | (n,2n) | ( E-thr = 6.420 MeV ) | 2.142 (b) | 12.90 (mb) | |||
| 17 | (n,3n) | ( E-thr = 14.63 MeV ) | − | 3.755 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 4.781 (nb) | 64.48 (μb) | 20.19 (nb) |
| 28 | (n,np) | ( E-thr = 6.830 MeV ) | 132.2 (μb) | 70.45 (nb) | |||
| 32 | (n,nd) | ( E-thr = 10.92 MeV ) | 0.000 (b) | 171.9e-12 (b) | |||
| 102 | (n,γ) | 372.0 (b) | 379.6 (b) | 1.020 | 7.212 (kb) | 1.785 (mb) | 173.7 (mb) |
| 103 | (n,p) | 0.000 (b) | 0.000 (b) | − | 162.1 (μb) | 10.82 (mb) | 8.324 (μb) |
| 104 | (n,d) | ( E-thr = 4.593 MeV ) | 573.8 (μb) | 147.8 (nb) | |||
| 105 | (n,t) | ( E-thr = 4.624 MeV ) | 52.21 (μb) | 12.19 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.078 MeV ) | 423.1e-18 (b) | 288.2e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 45.55 (μb) | 1.279 (mb) | 3.270 (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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