| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 5.620 (b) | 6.208 (b) | 1.105 | − | 3.146 (b) | 3.772 (b) |
| 2 | (n,elastic) | 4.554 (b) | 5.142 (b) | 1.129 | − | 1.571 (b) | 3.048 (b) |
| 4 | (n,inelastic) | ( E-thr = 105.0 keV ) | 588.2 (mb) | 716.4 (mb) | |||
| 16 | (n,2n) | ( E-thr = 10.35 MeV ) | 945.7 (mb) | 305.7 (μb) | |||
| 17 | (n,3n) | ( E-thr = 17.51 MeV ) | − | 14.41 (nb) | |||
| 22 | (n,na) | ( E-thr = 5.412 MeV ) | 3.057 (mb) | 1.373 (μb) | |||
| 28 | (n,np) | ( E-thr = 10.13 MeV ) | 2.093 (mb) | 459.7 (nb) | |||
| 32 | (n,nd) | ( E-thr = 17.14 MeV ) | − | 569.7e-15 (b) | |||
| 102 | (n,γ) | 1.066 (b) | 1.066 (b) | 1.000 | 3.092 (b) | 780.3 (μb) | 6.705 (mb) |
| 103 | (n,p) | ( E-thr = 3.712 MeV ) | 22.72 (mb) | 40.74 (μb) | |||
| 104 | (n,d) | ( E-thr = 7.868 MeV ) | 1.790 (mb) | 336.7 (nb) | |||
| 105 | (n,t) | ( E-thr = 10.79 MeV ) | 1.287 (μb) | 1.801 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 11.02 MeV ) | 754.6e-15 (b) | 89.51e-15 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 1.714 (mb) | 9.002 (mb) | 80.09 (μb) |
| 111 | (n,2p) | ( E-thr = 12.96 MeV ) | 18.92e-18 (b) | 358.2e-15 (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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