| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 3.412 (b) | 3.807 (b) | 1.116 | − | 1.762 (b) | 2.719 (b) |
| 2 | (n,elastic) | 2.889 (b) | 3.261 (b) | 1.129 | − | 728.1 (mb) | 2.331 (b) |
| 4 | (n,inelastic) | ( E-thr = 865.7 keV ) | 365.9 (mb) | 144.6 (mb) | |||
| 16 | (n,2n) | ( E-thr = 8.908 MeV ) | 161.1 (mb) | 194.0 (μb) | |||
| 22 | (n,na) | ( E-thr = 7.335 MeV ) | 114.4 (mb) | 78.19 (μb) | |||
| 28 | (n,np) | ( E-thr = 9.864 MeV ) | 42.55 (mb) | 8.416 (μb) | |||
| 102 | (n,γ) | 350.1 (mb) | 350.3 (mb) | 1.001 | 164.0 (mb) | 715.3 (nb) | 202.4 (μb) |
| 103 | (n,p) | 1.637 (mb) | 1.848 (mb) | 1.129 | 246.3 (mb) | 213.8 (mb) | 57.19 (mb) |
| 107 | (n,a) | 171.3 (mb) | 193.3 (mb) | 1.129 | 2.872 (b) | 136.5 (mb) | 186.1 (mb) |
|
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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