| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 23.09 (b) | 23.62 (b) | 1.023 | − | 4.537 (b) | 5.614 (b) |
| 2 | (n,elastic) | 3.440 (b) | 3.879 (b) | 1.128 | − | 3.060 (b) | 4.196 (b) |
| 4 | (n,inelastic) | ( E-thr = 141.9 keV ) | 214.8 (mb) | 1.324 (b) | |||
| 16 | (n,2n) | ( E-thr = 9.060 MeV ) | 1.233 (b) | 1.336 (mb) | |||
| 17 | (n,3n) | ( E-thr = 16.42 MeV ) | − | 792.2 (nb) | |||
| 22 | (n,na) | ( E-thr = 2.992 MeV ) | 550.7 (μb) | 131.8 (nb) | |||
| 28 | (n,np) | ( E-thr = 6.571 MeV ) | 6.887 (mb) | 1.792 (μb) | |||
| 32 | (n,nd) | ( E-thr = 12.97 MeV ) | 2.497e-18 (b) | 1.605 (nb) | |||
| 33 | (n,nt) | ( E-thr = 13.62 MeV ) | 0.000 (b) | 156.0e-12 (b) | |||
| 102 | (n,γ) | 19.65 (b) | 19.74 (b) | 1.004 | 311.7 (b) | 1.007 (mb) | 87.10 (mb) |
| 103 | (n,p) | ( E-thr = 580.1 keV ) | 13.41 (mb) | 58.07 (μb) | |||
| 104 | (n,d) | ( E-thr = 4.237 MeV ) | 1.050 (mb) | 228.4 (nb) | |||
| 105 | (n,t) | ( E-thr = 6.724 MeV ) | 94.79 (μb) | 31.23 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 8.658 MeV ) | 107.8e-15 (b) | 5.943e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 424.9 (μb) | 6.605 (mb) | 24.12 (μb) |
|
These cross sections are calculated from JENDL-3.2 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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