| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 15.34 (b) | 16.05 (b) | 1.046 | − | 5.284 (b) | 6.960 (b) |
| 2 | (n,elastic) | 5.422 (b) | 6.118 (b) | 1.128 | − | 2.579 (b) | 4.208 (b) |
| 4 | (n,inelastic) | ( E-thr = 84.76 keV ) | 620.0 (mb) | 2.551 (b) | |||
| 16 | (n,2n) | ( E-thr = 8.520 MeV ) | 2.074 (b) | 3.235 (mb) | |||
| 17 | (n,3n) | ( E-thr = 15.43 MeV ) | − | 1.257 (μb) | |||
| 22 | (n,na) | 0.000 (b) | 0.000 (b) | − | 613.2 (nb) | 589.9 (μb) | 212.2 (nb) |
| 28 | (n,np) | ( E-thr = 6.818 MeV ) | 320.7 (μb) | 104.8 (nb) | |||
| 32 | (n,nd) | ( E-thr = 12.66 MeV ) | 0.000 (b) | 16.22e-12 (b) | |||
| 102 | (n,γ) | 9.915 (b) | 9.932 (b) | 1.002 | 312.0 (b) | 918.3 (μb) | 198.5 (mb) |
| 103 | (n,p) | ( E-thr = 187.1 keV ) | 10.50 (mb) | 8.820 (μb) | |||
| 104 | (n,d) | ( E-thr = 4.580 MeV ) | 1.722 (mb) | 366.2 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.367 MeV ) | 17.93 (μb) | 9.341 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 4.660 MeV ) | 417.7e-15 (b) | 1.677e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 144.1 (μb) | 2.372 (mb) | 12.00 (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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